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Questions and Answers
What is the primary benefit of Synthetic Aperture Radar (SAR) over conventional radar systems?
What is the primary benefit of Synthetic Aperture Radar (SAR) over conventional radar systems?
- The ability to move along its path in a circular motion
- The ability to illuminate the ground surface in a perpendicular direction
- The ability to sense objects at a longer distance
- The ability to achieve a higher resolution through digital signal processing (correct)
Why is the side-looking perspective essential in SAR systems?
Why is the side-looking perspective essential in SAR systems?
- To allow the radar to sense objects at a longer distance
- To enable the radar to move in a circular motion
- To differentiate between targets (correct)
- To illuminate the ground surface in a perpendicular direction
What is the result of the radar signal data accumulation in SAR systems?
What is the result of the radar signal data accumulation in SAR systems?
- A complex-valued and 2-dimensional image (correct)
- A complex-valued and 3-dimensional image
- A real-valued and 1-dimensional image
- A real-valued and 3-dimensional image
What is the role of digital signal processing in SAR systems?
What is the role of digital signal processing in SAR systems?
What is the concept of synthetic aperture in SAR systems?
What is the concept of synthetic aperture in SAR systems?
What is the primary factor determining the range resolution of a SAR?
What is the primary factor determining the range resolution of a SAR?
What is the advantage of SAR over conventional radar systems in terms of azimuth resolution?
What is the advantage of SAR over conventional radar systems in terms of azimuth resolution?
In what domain are radar data initially created in SAR systems?
In what domain are radar data initially created in SAR systems?
What is the purpose of the linear frequency modulation (chirp) in SAR systems?
What is the purpose of the linear frequency modulation (chirp) in SAR systems?
What is the result of compressing the radar signal in SAR systems?
What is the result of compressing the radar signal in SAR systems?
What is the primary method of azimuth compression in radar systems?
What is the primary method of azimuth compression in radar systems?
What is the main factor that determines the beamwidth in Real Aperture Radar (RAR) systems?
What is the main factor that determines the beamwidth in Real Aperture Radar (RAR) systems?
As the nadir is approached in SLAR systems, what happens to the ground range resolution?
As the nadir is approached in SLAR systems, what happens to the ground range resolution?
What is the primary difference between SLAR and SAR systems?
What is the primary difference between SLAR and SAR systems?
Which of the following is an example of a platform used in SLAR systems?
Which of the following is an example of a platform used in SLAR systems?
What causes the angular spread of the radar beam to decrease?
What causes the angular spread of the radar beam to decrease?
What determines the azimuth resolution of a SLAR system for a specific frequency and slant range?
What determines the azimuth resolution of a SLAR system for a specific frequency and slant range?
Why is it difficult to achieve high azimuth resolution in SLAR systems?
Why is it difficult to achieve high azimuth resolution in SLAR systems?
How can two objects on the ground with the same slant range be imaged separately?
How can two objects on the ground with the same slant range be imaged separately?
What has been the main drawback of the SLAR system?
What has been the main drawback of the SLAR system?
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