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A radar system that differentiates between fixed and moving targets by detecting the apparent change in frequency of the reflected wave due to motion of target or the observer. Dictionary of Military and Associated Terms. US Department of Defense 2005. ...
The method is closely related to the synoptic approach (see above).Dataare collected rapidly by a Global Telecommunications System for 0000 or 1200 GMT to specify the initial conditions. The model equations are then solved for various segments of the weather map—often a global map—to calculate...
The technique synthesizes a very large aperture by using the Doppler (i.e., frequency) shift induced by the relative motion of a small aperture past the scene of interest. Very high resolution imagery (10-m resolution) is obtained using this technique. The important parameters involved in SAR...
Satellite Interferometric Synthetic Aperture Radar (InSAR) is a space-borne geodetic technique that can map ground displacement at millimetre accuracy. Via
Radar Configuration Consider a SAR radar operating in C-band with a 4 GHz carrier frequency and a signal bandwidth of 50 MHz. This bandwidth yields a range resolution of 3 meters. The radar system collects data orthogonal to the direction of motion of the platform as shown in this figure. ...
a simple distance/speed plot showing the aircraft in motion can be created. Thisprevious postshows an example of what information you could potentially collect in a range/speed graph over time. In the past we've also used passive radar to detect vehicles andmeasure how much traffic is in a...
Radar detection of maritime targets plays an important role in marine environment monitoring. For civil maritime detection in the areas of inshore coastal, pulse-compression radar is universally used owing to its low cost. The complex sea clutter in the
Saddler confirmed that in May, when she turned down the company’s motion to dismiss the case, she didn’t consider the messages. “That should be clear. I did not,” the judge said. However, D.C. Acting Deputy Attorney General for Public Advocacy Jimmy Rock said the District’s positio...