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The delay/Doppler radar altimeter
IEEE Transactions on Geoscience and Remote Sensing, 1998The key innovation in the delay/Doppler radar altimeter is delay compensation, analogous to range curvature correction in a burst-mode synthetic aperture radar (SAR). Following delay compensation, height estimates are sorted by Doppler frequency, and integrated in parallel. More equivalent looks are accumulated than in a conventional altimeter.
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Science, 1973 2010 International Waveform Diversity and Design Conference, 2010
Modern military airborne radars are highly sophisticated, multi-mode systems which are required to detect difficult targets in all aspects and over a large range/velocity detection space. There are particular difficulties associated with the airborne case such as the limited antenna aperture, high platform velocity and severe clutter levels which ...
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Modern military airborne radars are highly sophisticated, multi-mode systems which are required to detect difficult targets in all aspects and over a large range/velocity detection space. There are particular difficulties associated with the airborne case such as the limited antenna aperture, high platform velocity and severe clutter levels which ...
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Doppler shift for a radar echo
American Journal of Physics, 1979The Doppler shift formula for a radar echo is derived without the use of transformation equations by considering the superposition of the incident and reflected waves. The results are then used as a basis for a discussion of the concepts of proper length and time as regards the transformation properties of wavelength and period in special relativity.
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2014
The main objective of this chapter is to describe how an airborne pulse-Doppler radar isolates targets of interest from clutter and measures target range and velocity. Related topics such as pulse compression, automatic detection, target tracking, and target and clutter statistics are described.
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The main objective of this chapter is to describe how an airborne pulse-Doppler radar isolates targets of interest from clutter and measures target range and velocity. Related topics such as pulse compression, automatic detection, target tracking, and target and clutter statistics are described.
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1987
Relative motion between a signal source and a receiver creates a Doppler shift of the source frequency. Likewise, when a radar system illuminates a moving target that has a radial velocity component relative to the radar, the signal reflected from the target and received by the radar is also frequency shifted.
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Relative motion between a signal source and a receiver creates a Doppler shift of the source frequency. Likewise, when a radar system illuminates a moving target that has a radial velocity component relative to the radar, the signal reflected from the target and received by the radar is also frequency shifted.
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