{"id":58,"date":"2025-01-31T09:23:22","date_gmt":"2025-01-31T07:23:22","guid":{"rendered":"https:\/\/sisu.ut.ee\/signaalitootlus2\/kontrollkusimused-5-osa-kohta\/"},"modified":"2025-01-31T09:23:22","modified_gmt":"2025-01-31T07:23:22","slug":"kontrollkusimused-5-osa-kohta","status":"publish","type":"page","link":"https:\/\/sisu.ut.ee\/signaalitootlus2\/kontrollkusimused-5-osa-kohta\/","title":{"rendered":"Kontrollk\u00fcsimused 5. osa kohta"},"content":{"rendered":"<div id=\"watupro_quiz\" class=\"quiz-area single-page-quiz\">\n<p id=\"submittingExam5\" style=\"display:none;text-align:center;\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/sisu.ut.ee\/wp-content\/plugins\/watupro\/img\/loading.gif\" width=\"16\" height=\"16\"><\/p>\n\n\n\n<form action=\"\" method=\"post\" class=\"quiz-form\" id=\"quiz-5\" enctype=\"multipart\/form-data\">\n<div class=\"watu-question \" id=\"question-1\" style=\";\"><div id=\"questionWrap-1\" class=\"  watupro-required-30 watupro-question-id-30\">\n\t\t\t<div class=\"question-content\"><div><p>What causes aliasing on a SAR image?<\/p><\/div><input type=\"hidden\" name=\"question_id[]\" id=\"qID_1\" value=\"30\" class=\"watupro-question-id\"><input type=\"hidden\" id=\"answerType30\" class=\"answerTypeCnt1\" value=\"radio\"><input type=\"hidden\" id=\"watupro-required-question-30\"><!-- end question-content--><\/div><div class=\"question-choices watupro-choices-columns \" id=\"questionChoices30\"><div class=\"watupro-question-choice  \" dir=\"auto\"><input type=\"radio\" name=\"answer-30[]\" id=\"answer-id-78\" class=\"answer   answerof-30 \" value=\"78\"><label for=\"answer-id-78\" id=\"answer-label-78\" class=\" answer\"><span><p>Sidelobes of the SAR antenna<\/p><\/span><\/label><\/div><div class=\"watupro-question-choice  \" dir=\"auto\"><input type=\"radio\" name=\"answer-30[]\" id=\"answer-id-79\" class=\"answer   answerof-30 \" value=\"79\"><label for=\"answer-id-79\" id=\"answer-label-79\" class=\" answer\"><span><p>The speckle effect<\/p><\/span><\/label><\/div><div class=\"watupro-question-choice  \" dir=\"auto\"><input type=\"radio\" name=\"answer-30[]\" id=\"answer-id-80\" class=\"answer   answerof-30 \" value=\"80\"><label for=\"answer-id-80\" id=\"answer-label-80\" class=\" answer\"><span><p>Sinc function response for point targets<\/p><\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class=\"watu-question \" id=\"question-2\" style=\";\"><div id=\"questionWrap-2\" class=\"  watupro-required-31 watupro-question-id-31\">\n\t\t\t<div class=\"question-content\"><div><p>Why does speckle appear on SAR images?<\/p><\/div><input type=\"hidden\" name=\"question_id[]\" id=\"qID_2\" value=\"31\" class=\"watupro-question-id\"><input type=\"hidden\" id=\"answerType31\" class=\"answerTypeCnt2\" value=\"radio\"><input type=\"hidden\" id=\"watupro-required-question-31\"><!-- end question-content--><\/div><div class=\"question-choices watupro-choices-columns \" id=\"questionChoices31\"><div class=\"watupro-question-choice  \" dir=\"auto\"><input type=\"radio\" name=\"answer-31[]\" id=\"answer-id-81\" class=\"answer   answerof-31 \" value=\"81\"><label for=\"answer-id-81\" id=\"answer-label-81\" class=\" answer\"><span><p>Because echoes of different objects are coherently added in random phase within a resolution cell resulting either constructive or destructive interference<\/p><\/span><\/label><\/div><div class=\"watupro-question-choice  \" dir=\"auto\"><input type=\"radio\" name=\"answer-31[]\" id=\"answer-id-82\" class=\"answer   answerof-31 \" value=\"82\"><label for=\"answer-id-82\" id=\"answer-label-82\" class=\" answer\"><span><p>Because there is always noise in the receiving SAR antenna due to non-ideal cooling (thermal noise)<\/p><\/span><\/label><\/div><div class=\"watupro-question-choice  \" dir=\"auto\"><input type=\"radio\" name=\"answer-31[]\" id=\"answer-id-83\" class=\"answer   answerof-31 \" value=\"83\"><label for=\"answer-id-83\" id=\"answer-label-83\" class=\" answer\"><span><p>Because of non-ideal timing of the neighboring echoes are received with variable time intervals causing the received focused signal to fluctuate<\/p><\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class=\"watu-question \" id=\"question-3\" style=\";\"><div id=\"questionWrap-3\" class=\"  watupro-required-32 watupro-question-id-32\">\n\t\t\t<div class=\"question-content\"><div><p>Why do all SAR systems look sideways?<\/p><\/div><input type=\"hidden\" name=\"question_id[]\" id=\"qID_3\" value=\"32\" class=\"watupro-question-id\"><input type=\"hidden\" id=\"answerType32\" class=\"answerTypeCnt3\" value=\"radio\"><input type=\"hidden\" id=\"watupro-required-question-32\"><!-- end question-content--><\/div><div class=\"question-choices watupro-choices-columns \" id=\"questionChoices32\"><div class=\"watupro-question-choice  \" dir=\"auto\"><input type=\"radio\" name=\"answer-32[]\" id=\"answer-id-84\" class=\"answer   answerof-32 \" value=\"84\"><label for=\"answer-id-84\" id=\"answer-label-84\" class=\" answer\"><span><p>In order to achieve range resolution as different object echoes come from different distances, hence at different time and by splitting the signal in time, it is possible to achieve resolution in range<\/p><\/span><\/label><\/div><div class=\"watupro-question-choice  \" dir=\"auto\"><input type=\"radio\" name=\"answer-32[]\" id=\"answer-id-85\" class=\"answer   answerof-32 \" value=\"85\"><label for=\"answer-id-85\" id=\"answer-label-85\" class=\" answer\"><span><p>In order to achieve azimuth resolution as the echoes from different objects come in different phase thus forming a synthetic chirp, which is later correlated with another chirp to achieve sinc-like response<\/p><\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class=\"watu-question \" id=\"question-4\" style=\";\"><div id=\"questionWrap-4\" class=\"  watupro-required-33 watupro-question-id-33\">\n\t\t\t<div class=\"question-content\"><div><p>How is high azimuth resolution achieved in Synthetic Aperture Radar?<\/p><\/div><input type=\"hidden\" name=\"question_id[]\" id=\"qID_4\" value=\"33\" class=\"watupro-question-id\"><input type=\"hidden\" id=\"answerType33\" class=\"answerTypeCnt4\" value=\"radio\"><input type=\"hidden\" id=\"watupro-required-question-33\"><!-- end question-content--><\/div><div class=\"question-choices watupro-choices-columns \" id=\"questionChoices33\"><div class=\"watupro-question-choice  \" dir=\"auto\"><input type=\"radio\" name=\"answer-33[]\" id=\"answer-id-86\" class=\"answer   answerof-33 \" value=\"86\"><label for=\"answer-id-86\" id=\"answer-label-86\" class=\" answer\"><span><p>By exploiting the range dependent phase history of the recorded neighboring echoes in azimuth direction<\/p><\/span><\/label><\/div><div class=\"watupro-question-choice  \" dir=\"auto\"><input type=\"radio\" name=\"answer-33[]\" id=\"answer-id-87\" class=\"answer   answerof-33 \" value=\"87\"><label for=\"answer-id-87\" id=\"answer-label-87\" class=\" answer\"><span><p>By exploiting the azimuth dependent phase history of the recorded neighbouring echos in range direction<\/p><\/span><\/label><\/div><div class=\"watupro-question-choice  \" dir=\"auto\"><input type=\"radio\" name=\"answer-33[]\" id=\"answer-id-88\" class=\"answer   answerof-33 \" value=\"88\"><label for=\"answer-id-88\" id=\"answer-label-88\" class=\" answer\"><span><p>By synthetically building a large aperture antenna of small dipoles - a phased array<\/p><\/span><\/label><\/div><div class=\"watupro-question-choice  \" dir=\"auto\"><input type=\"radio\" name=\"answer-33[]\" id=\"answer-id-89\" class=\"answer   answerof-33 \" value=\"89\"><label for=\"answer-id-89\" id=\"answer-label-89\" class=\" answer\"><span><p>By building a large aperture antenna with a small footprint on ground<\/p><\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class=\"watu-question \" id=\"question-5\" style=\";\"><div id=\"questionWrap-5\" class=\"  watupro-required-34 watupro-question-id-34\">\n\t\t\t<div class=\"question-content\"><div><p>Which of the following signals is transmitted by a typical Synthetic Aperture Radar?<\/p><\/div><input type=\"hidden\" name=\"question_id[]\" id=\"qID_5\" value=\"34\" class=\"watupro-question-id\"><input type=\"hidden\" id=\"answerType34\" class=\"answerTypeCnt5\" value=\"radio\"><input type=\"hidden\" id=\"watupro-required-question-34\"><!-- end question-content--><\/div><div class=\"question-choices watupro-choices-columns \" id=\"questionChoices34\"><div class=\"watupro-question-choice  \" dir=\"auto\"><input type=\"radio\" name=\"answer-34[]\" id=\"answer-id-90\" class=\"answer   answerof-34 \" value=\"90\"><label for=\"answer-id-90\" id=\"answer-label-90\" class=\" answer\"><span><p>chirp - linear frequency modulated sinusoid<\/p><\/span><\/label><\/div><div class=\"watupro-question-choice  \" dir=\"auto\"><input type=\"radio\" name=\"answer-34[]\" id=\"answer-id-91\" class=\"answer   answerof-34 \" value=\"91\"><label for=\"answer-id-91\" id=\"answer-label-91\" class=\" answer\"><span><p>Gaussian impulse<\/p><\/span><\/label><\/div><div class=\"watupro-question-choice  \" dir=\"auto\"><input type=\"radio\" name=\"answer-34[]\" id=\"answer-id-92\" class=\"answer   answerof-34 \" value=\"92\"><label for=\"answer-id-92\" id=\"answer-label-92\" class=\" answer\"><span><p>impulse - Dirac delta<\/p><\/span><\/label><\/div><div class=\"watupro-question-choice  \" dir=\"auto\"><input type=\"radio\" name=\"answer-34[]\" id=\"answer-id-93\" class=\"answer   answerof-34 \" value=\"93\"><label for=\"answer-id-93\" id=\"answer-label-93\" class=\" answer\"><span><p>sinc function<\/p><\/span><\/label><\/div><div class=\"watupro-question-choice  \" dir=\"auto\"><input type=\"radio\" name=\"answer-34[]\" id=\"answer-id-94\" class=\"answer   answerof-34 \" value=\"94\"><label for=\"answer-id-94\" id=\"answer-label-94\" class=\" answer\"><span><p>Heaviside step function<\/p><\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class=\"watu-question \" id=\"question-6\" style=\";\"><div id=\"questionWrap-6\" class=\"  watupro-required-35 watupro-question-id-35\">\n\t\t\t<div class=\"question-content\"><div><p>What is the fundamental signal processing \"tool\" used in SAR focusing to achieve a high resolution image?<\/p><\/div><input type=\"hidden\" name=\"question_id[]\" id=\"qID_6\" value=\"35\" class=\"watupro-question-id\"><input type=\"hidden\" id=\"answerType35\" class=\"answerTypeCnt6\" value=\"radio\"><input type=\"hidden\" id=\"watupro-required-question-35\"><!-- end question-content--><\/div><div class=\"question-choices watupro-choices-columns \" id=\"questionChoices35\"><div class=\"watupro-question-choice  \" dir=\"auto\"><input type=\"radio\" name=\"answer-35[]\" id=\"answer-id-95\" class=\"answer   answerof-35 \" value=\"95\"><label for=\"answer-id-95\" id=\"answer-label-95\" class=\" answer\"><span><p>Correlation and signal multiplication as it's frequency domain equivalent, FFT for transforming the signal to frequency domain and then back to time domain again<\/p><\/span><\/label><\/div><div class=\"watupro-question-choice  \" dir=\"auto\"><input type=\"radio\" name=\"answer-35[]\" id=\"answer-id-96\" class=\"answer   answerof-35 \" value=\"96\"><label for=\"answer-id-96\" id=\"answer-label-96\" class=\" answer\"><span><p>Fourier transform, taking the Fourier transform of a SAR image will focus the raw signal to a high resolution 2D image<\/p><\/span><\/label><\/div><div class=\"watupro-question-choice  \" dir=\"auto\"><input type=\"radio\" name=\"answer-35[]\" id=\"answer-id-97\" class=\"answer   answerof-35 \" value=\"97\"><label for=\"answer-id-97\" id=\"answer-label-97\" class=\" answer\"><span><p>Hamming filtering to suppress the sidelobes and enhance the main lobe of a point target response on a SAR image<\/p><\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class=\"watu-question \" id=\"question-7\" style=\";\"><div id=\"questionWrap-7\" class=\"  watupro-required-36 watupro-question-id-36\">\n\t\t\t<div class=\"question-content\"><div><p>The resolution of a Synthetic Aperture Radar is the higher the closer is the radar to the sensed object.<\/p><\/div><input type=\"hidden\" name=\"question_id[]\" id=\"qID_7\" value=\"36\" class=\"watupro-question-id\"><input type=\"hidden\" id=\"answerType36\" class=\"answerTypeCnt7\" value=\"radio\"><input type=\"hidden\" id=\"watupro-required-question-36\"><!-- end question-content--><\/div><div class=\"question-choices watupro-choices-columns \" id=\"questionChoices36\"><div class=\"watupro-question-choice  \" dir=\"auto\"><input type=\"radio\" name=\"answer-36[]\" id=\"answer-id-98\" class=\"answer   answerof-36 \" value=\"98\"><label for=\"answer-id-98\" id=\"answer-label-98\" class=\" answer\"><span><p>False<\/p><\/span><\/label><\/div><div class=\"watupro-question-choice  \" dir=\"auto\"><input type=\"radio\" name=\"answer-36[]\" id=\"answer-id-99\" class=\"answer   answerof-36 \" value=\"99\"><label for=\"answer-id-99\" id=\"answer-label-99\" class=\" answer\"><span><p>True<\/p><\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class=\"watu-question \" id=\"question-8\" style=\";\"><div id=\"questionWrap-8\" class=\"  watupro-required-37 watupro-question-id-37\">\n\t\t\t<div class=\"question-content\"><p>Connect the term with its right definition.<\/p><div class=\"question-choices\"><table class=\"question-choices watupro-matrix-droppable\" id=\"watuPROMatrixDroppable_37\"><tr><td class=\"watupro-matrix-left-cell\">radar platform flight direction<\/td>\n\t\t\t\t\t\t<td class=\"watupro-matrix-right-cell watuPRODroppable37\" id=\"watuPRODroppableCell100\"><div class=\"question-choices\"><div class=\"watupro-matrix-right\"><div id=\"watuproNMatrixSelection-0-0\" class=\" watupro-matrix-draggable watupro-nmatrix-answer-0\" onclick=\"WatuPROINMatrix.sel(this, 'watuPRODroppableCell100', 0);return false;\">range<!--WTPMD537b19816109a32106d109e83bbb3c97d--><p class=\"watupro-nmatrix-unselect\">Unselect<\/p><\/div><div id=\"watuproNMatrixSelection-0-1\" class=\" watupro-matrix-draggable watupro-nmatrix-answer-1\" onclick=\"WatuPROINMatrix.sel(this, 'watuPRODroppableCell100', 1);return false;\">2D sinc function<!--WTPMD5cebf87a6e4e32cdab05852ff85561d78--><p class=\"watupro-nmatrix-unselect\">Unselect<\/p><\/div><div id=\"watuproNMatrixSelection-0-2\" class=\" watupro-matrix-draggable watupro-nmatrix-answer-2\" onclick=\"WatuPROINMatrix.sel(this, 'watuPRODroppableCell100', 2);return false;\">interferometry<!--WTPMD50d27d0944d21eecd2b2c304a2de776f8--><p class=\"watupro-nmatrix-unselect\">Unselect<\/p><\/div><div id=\"watuproNMatrixSelection-0-3\" class=\" watupro-matrix-draggable watupro-nmatrix-answer-3\" onclick=\"WatuPROINMatrix.sel(this, 'watuPRODroppableCell100', 3);return false;\">azimuth<!--WTPMD59554f29dc443343de79ecd272ebcfaf3--><p class=\"watupro-nmatrix-unselect\">Unselect<\/p><\/div><div id=\"watuproNMatrixSelection-0-4\" class=\" watupro-matrix-draggable watupro-nmatrix-answer-4\" onclick=\"WatuPROINMatrix.sel(this, 'watuPRODroppableCell100', 4);return false;\">PRF<!--WTPMD511885b3d27c47c01ab3f6ed5f29f1c0a--><p class=\"watupro-nmatrix-unselect\">Unselect<\/p><\/div><div id=\"watuproNMatrixSelection-0-5\" class=\" watupro-matrix-draggable watupro-nmatrix-answer-5\" onclick=\"WatuPROINMatrix.sel(this, 'watuPRODroppableCell100', 5);return false;\">speckle<!--WTPMD56ce9c251619780e49999f3afba1ac7b0--><p class=\"watupro-nmatrix-unselect\">Unselect<\/p><\/div><\/div><\/div><input type=\"hidden\" class=\"answerof-37 watupro-nmatrix-answer-field\" id=\"field-watuPRODroppableCell100\" name=\"matrix-left-100\" value=\"\"><\/td><\/tr><tr><td class=\"watupro-matrix-left-cell\">distance between radar and the sensed object<\/td>\n\t\t\t\t\t\t<td class=\"watupro-matrix-right-cell watuPRODroppable37\" id=\"watuPRODroppableCell101\"><div class=\"question-choices\"><div class=\"watupro-matrix-right\"><div id=\"watuproNMatrixSelection-1-0\" class=\" watupro-matrix-draggable watupro-nmatrix-answer-0\" onclick=\"WatuPROINMatrix.sel(this, 'watuPRODroppableCell101', 0);return false;\">range<!--WTPMD537b19816109a32106d109e83bbb3c97d--><p class=\"watupro-nmatrix-unselect\">Unselect<\/p><\/div><div id=\"watuproNMatrixSelection-1-1\" class=\" watupro-matrix-draggable watupro-nmatrix-answer-1\" onclick=\"WatuPROINMatrix.sel(this, 'watuPRODroppableCell101', 1);return false;\">2D sinc function<!--WTPMD5cebf87a6e4e32cdab05852ff85561d78--><p class=\"watupro-nmatrix-unselect\">Unselect<\/p><\/div><div id=\"watuproNMatrixSelection-1-2\" class=\" watupro-matrix-draggable watupro-nmatrix-answer-2\" onclick=\"WatuPROINMatrix.sel(this, 'watuPRODroppableCell101', 2);return false;\">interferometry<!--WTPMD50d27d0944d21eecd2b2c304a2de776f8--><p class=\"watupro-nmatrix-unselect\">Unselect<\/p><\/div><div id=\"watuproNMatrixSelection-1-3\" class=\" watupro-matrix-draggable watupro-nmatrix-answer-3\" onclick=\"WatuPROINMatrix.sel(this, 'watuPRODroppableCell101', 3);return false;\">azimuth<!--WTPMD59554f29dc443343de79ecd272ebcfaf3--><p class=\"watupro-nmatrix-unselect\">Unselect<\/p><\/div><div id=\"watuproNMatrixSelection-1-4\" class=\" watupro-matrix-draggable watupro-nmatrix-answer-4\" onclick=\"WatuPROINMatrix.sel(this, 'watuPRODroppableCell101', 4);return false;\">PRF<!--WTPMD511885b3d27c47c01ab3f6ed5f29f1c0a--><p class=\"watupro-nmatrix-unselect\">Unselect<\/p><\/div><div id=\"watuproNMatrixSelection-1-5\" class=\" watupro-matrix-draggable watupro-nmatrix-answer-5\" onclick=\"WatuPROINMatrix.sel(this, 'watuPRODroppableCell101', 5);return false;\">speckle<!--WTPMD56ce9c251619780e49999f3afba1ac7b0--><p class=\"watupro-nmatrix-unselect\">Unselect<\/p><\/div><\/div><\/div><input type=\"hidden\" class=\"answerof-37 watupro-nmatrix-answer-field\" id=\"field-watuPRODroppableCell101\" name=\"matrix-left-101\" value=\"\"><\/td><\/tr><tr><td class=\"watupro-matrix-left-cell\">inherent effect of Synthetic Aperture Radar which makes images look noisy even for homogeneous areas<\/td>\n\t\t\t\t\t\t<td class=\"watupro-matrix-right-cell watuPRODroppable37\" id=\"watuPRODroppableCell102\"><div class=\"question-choices\"><div class=\"watupro-matrix-right\"><div id=\"watuproNMatrixSelection-2-0\" class=\" watupro-matrix-draggable watupro-nmatrix-answer-0\" onclick=\"WatuPROINMatrix.sel(this, 'watuPRODroppableCell102', 0);return false;\">range<!--WTPMD537b19816109a32106d109e83bbb3c97d--><p class=\"watupro-nmatrix-unselect\">Unselect<\/p><\/div><div id=\"watuproNMatrixSelection-2-1\" class=\" watupro-matrix-draggable watupro-nmatrix-answer-1\" onclick=\"WatuPROINMatrix.sel(this, 'watuPRODroppableCell102', 1);return false;\">2D sinc function<!--WTPMD5cebf87a6e4e32cdab05852ff85561d78--><p class=\"watupro-nmatrix-unselect\">Unselect<\/p><\/div><div id=\"watuproNMatrixSelection-2-2\" class=\" watupro-matrix-draggable watupro-nmatrix-answer-2\" onclick=\"WatuPROINMatrix.sel(this, 'watuPRODroppableCell102', 2);return false;\">interferometry<!--WTPMD50d27d0944d21eecd2b2c304a2de776f8--><p class=\"watupro-nmatrix-unselect\">Unselect<\/p><\/div><div id=\"watuproNMatrixSelection-2-3\" class=\" watupro-matrix-draggable watupro-nmatrix-answer-3\" onclick=\"WatuPROINMatrix.sel(this, 'watuPRODroppableCell102', 3);return false;\">azimuth<!--WTPMD59554f29dc443343de79ecd272ebcfaf3--><p class=\"watupro-nmatrix-unselect\">Unselect<\/p><\/div><div id=\"watuproNMatrixSelection-2-4\" class=\" watupro-matrix-draggable watupro-nmatrix-answer-4\" onclick=\"WatuPROINMatrix.sel(this, 'watuPRODroppableCell102', 4);return false;\">PRF<!--WTPMD511885b3d27c47c01ab3f6ed5f29f1c0a--><p class=\"watupro-nmatrix-unselect\">Unselect<\/p><\/div><div id=\"watuproNMatrixSelection-2-5\" class=\" watupro-matrix-draggable watupro-nmatrix-answer-5\" onclick=\"WatuPROINMatrix.sel(this, 'watuPRODroppableCell102', 5);return false;\">speckle<!--WTPMD56ce9c251619780e49999f3afba1ac7b0--><p class=\"watupro-nmatrix-unselect\">Unselect<\/p><\/div><\/div><\/div><input type=\"hidden\" class=\"answerof-37 watupro-nmatrix-answer-field\" id=\"field-watuPRODroppableCell102\" name=\"matrix-left-102\" value=\"\"><\/td><\/tr><tr><td class=\"watupro-matrix-left-cell\">the response of a point target on a SAR image<\/td>\n\t\t\t\t\t\t<td class=\"watupro-matrix-right-cell watuPRODroppable37\" id=\"watuPRODroppableCell103\"><div class=\"question-choices\"><div class=\"watupro-matrix-right\"><div id=\"watuproNMatrixSelection-3-0\" class=\" watupro-matrix-draggable watupro-nmatrix-answer-0\" onclick=\"WatuPROINMatrix.sel(this, 'watuPRODroppableCell103', 0);return false;\">range<!--WTPMD537b19816109a32106d109e83bbb3c97d--><p class=\"watupro-nmatrix-unselect\">Unselect<\/p><\/div><div id=\"watuproNMatrixSelection-3-1\" class=\" watupro-matrix-draggable watupro-nmatrix-answer-1\" onclick=\"WatuPROINMatrix.sel(this, 'watuPRODroppableCell103', 1);return false;\">2D sinc function<!--WTPMD5cebf87a6e4e32cdab05852ff85561d78--><p class=\"watupro-nmatrix-unselect\">Unselect<\/p><\/div><div id=\"watuproNMatrixSelection-3-2\" class=\" watupro-matrix-draggable watupro-nmatrix-answer-2\" onclick=\"WatuPROINMatrix.sel(this, 'watuPRODroppableCell103', 2);return false;\">interferometry<!--WTPMD50d27d0944d21eecd2b2c304a2de776f8--><p class=\"watupro-nmatrix-unselect\">Unselect<\/p><\/div><div id=\"watuproNMatrixSelection-3-3\" class=\" watupro-matrix-draggable watupro-nmatrix-answer-3\" onclick=\"WatuPROINMatrix.sel(this, 'watuPRODroppableCell103', 3);return false;\">azimuth<!--WTPMD59554f29dc443343de79ecd272ebcfaf3--><p class=\"watupro-nmatrix-unselect\">Unselect<\/p><\/div><div id=\"watuproNMatrixSelection-3-4\" class=\" watupro-matrix-draggable watupro-nmatrix-answer-4\" onclick=\"WatuPROINMatrix.sel(this, 'watuPRODroppableCell103', 4);return false;\">PRF<!--WTPMD511885b3d27c47c01ab3f6ed5f29f1c0a--><p class=\"watupro-nmatrix-unselect\">Unselect<\/p><\/div><div id=\"watuproNMatrixSelection-3-5\" class=\" watupro-matrix-draggable watupro-nmatrix-answer-5\" onclick=\"WatuPROINMatrix.sel(this, 'watuPRODroppableCell103', 5);return false;\">speckle<!--WTPMD56ce9c251619780e49999f3afba1ac7b0--><p class=\"watupro-nmatrix-unselect\">Unselect<\/p><\/div><\/div><\/div><input type=\"hidden\" class=\"answerof-37 watupro-nmatrix-answer-field\" id=\"field-watuPRODroppableCell103\" name=\"matrix-left-103\" value=\"\"><\/td><\/tr><tr><td class=\"watupro-matrix-left-cell\">field of research is SAR, which deals with phase information exploitation, used for surface displacement calculations and topographic mapping<\/td>\n\t\t\t\t\t\t<td class=\"watupro-matrix-right-cell watuPRODroppable37\" id=\"watuPRODroppableCell104\"><div class=\"question-choices\"><div class=\"watupro-matrix-right\"><div id=\"watuproNMatrixSelection-4-0\" class=\" watupro-matrix-draggable watupro-nmatrix-answer-0\" onclick=\"WatuPROINMatrix.sel(this, 'watuPRODroppableCell104', 0);return false;\">range<!--WTPMD537b19816109a32106d109e83bbb3c97d--><p class=\"watupro-nmatrix-unselect\">Unselect<\/p><\/div><div id=\"watuproNMatrixSelection-4-1\" class=\" watupro-matrix-draggable watupro-nmatrix-answer-1\" onclick=\"WatuPROINMatrix.sel(this, 'watuPRODroppableCell104', 1);return false;\">2D sinc function<!--WTPMD5cebf87a6e4e32cdab05852ff85561d78--><p class=\"watupro-nmatrix-unselect\">Unselect<\/p><\/div><div id=\"watuproNMatrixSelection-4-2\" class=\" watupro-matrix-draggable watupro-nmatrix-answer-2\" onclick=\"WatuPROINMatrix.sel(this, 'watuPRODroppableCell104', 2);return false;\">interferometry<!--WTPMD50d27d0944d21eecd2b2c304a2de776f8--><p class=\"watupro-nmatrix-unselect\">Unselect<\/p><\/div><div id=\"watuproNMatrixSelection-4-3\" class=\" watupro-matrix-draggable watupro-nmatrix-answer-3\" onclick=\"WatuPROINMatrix.sel(this, 'watuPRODroppableCell104', 3);return false;\">azimuth<!--WTPMD59554f29dc443343de79ecd272ebcfaf3--><p class=\"watupro-nmatrix-unselect\">Unselect<\/p><\/div><div id=\"watuproNMatrixSelection-4-4\" class=\" watupro-matrix-draggable watupro-nmatrix-answer-4\" onclick=\"WatuPROINMatrix.sel(this, 'watuPRODroppableCell104', 4);return false;\">PRF<!--WTPMD511885b3d27c47c01ab3f6ed5f29f1c0a--><p class=\"watupro-nmatrix-unselect\">Unselect<\/p><\/div><div id=\"watuproNMatrixSelection-4-5\" class=\" watupro-matrix-draggable watupro-nmatrix-answer-5\" onclick=\"WatuPROINMatrix.sel(this, 'watuPRODroppableCell104', 5);return false;\">speckle<!--WTPMD56ce9c251619780e49999f3afba1ac7b0--><p class=\"watupro-nmatrix-unselect\">Unselect<\/p><\/div><\/div><\/div><input type=\"hidden\" class=\"answerof-37 watupro-nmatrix-answer-field\" id=\"field-watuPRODroppableCell104\" name=\"matrix-left-104\" value=\"\"><\/td><\/tr><tr><td class=\"watupro-matrix-left-cell\">the frequency at which radar repeats the impulses<\/td>\n\t\t\t\t\t\t<td class=\"watupro-matrix-right-cell watuPRODroppable37\" id=\"watuPRODroppableCell105\"><div class=\"question-choices\"><div class=\"watupro-matrix-right\"><div id=\"watuproNMatrixSelection-5-0\" class=\" watupro-matrix-draggable watupro-nmatrix-answer-0\" onclick=\"WatuPROINMatrix.sel(this, 'watuPRODroppableCell105', 0);return false;\">range<!--WTPMD537b19816109a32106d109e83bbb3c97d--><p class=\"watupro-nmatrix-unselect\">Unselect<\/p><\/div><div id=\"watuproNMatrixSelection-5-1\" class=\" watupro-matrix-draggable watupro-nmatrix-answer-1\" onclick=\"WatuPROINMatrix.sel(this, 'watuPRODroppableCell105', 1);return false;\">2D sinc function<!--WTPMD5cebf87a6e4e32cdab05852ff85561d78--><p class=\"watupro-nmatrix-unselect\">Unselect<\/p><\/div><div id=\"watuproNMatrixSelection-5-2\" class=\" watupro-matrix-draggable watupro-nmatrix-answer-2\" onclick=\"WatuPROINMatrix.sel(this, 'watuPRODroppableCell105', 2);return false;\">interferometry<!--WTPMD50d27d0944d21eecd2b2c304a2de776f8--><p class=\"watupro-nmatrix-unselect\">Unselect<\/p><\/div><div id=\"watuproNMatrixSelection-5-3\" class=\" watupro-matrix-draggable watupro-nmatrix-answer-3\" onclick=\"WatuPROINMatrix.sel(this, 'watuPRODroppableCell105', 3);return false;\">azimuth<!--WTPMD59554f29dc443343de79ecd272ebcfaf3--><p class=\"watupro-nmatrix-unselect\">Unselect<\/p><\/div><div id=\"watuproNMatrixSelection-5-4\" class=\" watupro-matrix-draggable watupro-nmatrix-answer-4\" onclick=\"WatuPROINMatrix.sel(this, 'watuPRODroppableCell105', 4);return false;\">PRF<!--WTPMD511885b3d27c47c01ab3f6ed5f29f1c0a--><p class=\"watupro-nmatrix-unselect\">Unselect<\/p><\/div><div id=\"watuproNMatrixSelection-5-5\" class=\" watupro-matrix-draggable watupro-nmatrix-answer-5\" onclick=\"WatuPROINMatrix.sel(this, 'watuPRODroppableCell105', 5);return false;\">speckle<!--WTPMD56ce9c251619780e49999f3afba1ac7b0--><p class=\"watupro-nmatrix-unselect\">Unselect<\/p><\/div><\/div><\/div><input type=\"hidden\" class=\"answerof-37 watupro-nmatrix-answer-field\" id=\"field-watuPRODroppableCell105\" name=\"matrix-left-105\" value=\"\"><\/td><\/tr><\/table><\/div><input type=\"hidden\" name=\"question_id[]\" id=\"qID_8\" value=\"37\" class=\"watupro-question-id\"><input type=\"hidden\" id=\"answerType37\" class=\"answerTypeCnt8\" value=\"nmatrix\"><input type=\"hidden\" id=\"watupro-required-question-37\"><!-- end question-content--><\/div><!-- end questionWrap--><\/div><\/div><div class=\"watu-question \" id=\"question-9\" style=\";\"><div id=\"questionWrap-9\" class=\"  watupro-required-38 watupro-question-id-38\">\n\t\t\t<div class=\"question-content\"><div><p>In spotlight mode SAR azimuth resolution is improved thanks to extended Doppler history.<\/p><\/div><input type=\"hidden\" name=\"question_id[]\" id=\"qID_9\" value=\"38\" class=\"watupro-question-id\"><input type=\"hidden\" id=\"answerType38\" class=\"answerTypeCnt9\" value=\"radio\"><input type=\"hidden\" id=\"watupro-required-question-38\"><!-- end question-content--><\/div><div class=\"question-choices watupro-choices-columns \" id=\"questionChoices38\"><div class=\"watupro-question-choice  \" dir=\"auto\"><input type=\"radio\" name=\"answer-38[]\" id=\"answer-id-106\" class=\"answer   answerof-38 \" value=\"106\"><label for=\"answer-id-106\" id=\"answer-label-106\" class=\" answer\"><span><p>True<\/p><\/span><\/label><\/div><div class=\"watupro-question-choice  \" dir=\"auto\"><input type=\"radio\" name=\"answer-38[]\" id=\"answer-id-107\" class=\"answer   answerof-38 \" value=\"107\"><label for=\"answer-id-107\" id=\"answer-label-107\" class=\" answer\"><span><p>False<\/p><\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class=\"watu-question \" id=\"question-10\" style=\";\"><div id=\"questionWrap-10\" class=\"  watupro-required-39 watupro-question-id-39\">\n\t\t\t<div class=\"question-content\"><div><p>Which formula defines the azimuth resolution of a SAR?<\/p><\/div><input type=\"hidden\" name=\"question_id[]\" id=\"qID_10\" value=\"39\" class=\"watupro-question-id\"><input type=\"hidden\" id=\"answerType39\" class=\"answerTypeCnt10\" value=\"radio\"><input type=\"hidden\" id=\"watupro-required-question-39\"><!-- end question-content--><\/div><div class=\"question-choices watupro-choices-columns \" id=\"questionChoices39\"><div class=\"watupro-question-choice  \" dir=\"auto\"><input type=\"radio\" name=\"answer-39[]\" id=\"answer-id-108\" class=\"answer   answerof-39 \" value=\"108\"><label for=\"answer-id-108\" id=\"answer-label-108\" class=\" answer\"><span><p>da\/2, where da is the antenna length in azimuth direction<\/p><\/span><\/label><\/div><div class=\"watupro-question-choice  \" dir=\"auto\"><input type=\"radio\" name=\"answer-39[]\" id=\"answer-id-109\" class=\"answer   answerof-39 \" value=\"109\"><label for=\"answer-id-109\" id=\"answer-label-109\" class=\" answer\"><span><p>(lambda*r0)\/da, where lambda is the wavelength, r0 is distance to the object and da is the antenna length in azimuth direction<\/p><\/span><\/label><\/div><div class=\"watupro-question-choice  \" dir=\"auto\"><input type=\"radio\" name=\"answer-39[]\" id=\"answer-id-110\" class=\"answer   answerof-39 \" value=\"110\"><label for=\"answer-id-110\" id=\"answer-label-110\" class=\" answer\"><span><p>(theta_a*r0)\/2, where theta_0 is the antenna beamwidth in azimuth and r0 is distance to the object<\/p><\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div style=\"display:none\" id=\"question-11\">\n\t<div class=\"question-content\">\n\t\t<img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/sisu.ut.ee\/wp-content\/plugins\/watupro\/img\/loading.gif\" width=\"16\" height=\"16\" alt=\"Loading...\" title=\"Loading...\">\u00a0Loading...\t<\/div>\n<\/div>\n\n<br>\n\t\n\t\t\t<div class=\"watupro_buttons flex \" id=\"watuPROButtons5\">\n\t\t  <div id=\"prev-question\" style=\"display:none;\"><input type=\"button\" value=\"&lt; Previous\" onclick=\"WatuPRO.nextQuestion(event, 'previous');\"><\/div>\t\t  \t\t  \t\t   \n\t\t   \t  \t\t<div><input type=\"button\" name=\"action\" class=\"watupro-submit-button\" onclick=\"WatuPRO.submitResult(event)\" id=\"action-button\" value=\"View Results\">\n\t\t<\/div>\n\t\t<\/div>\n\t\t\n\t<input type=\"hidden\" name=\"quiz_id\" value=\"5\" id=\"watuPROExamID\">\n\t<input type=\"hidden\" 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