Radar system employing a method for motion and range closure compensation
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United States of America Patent
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Oct 1, 1991
Grant Date -
N/A
app pub date -
Sep 4, 1990
filing date -
Sep 4, 1990
priority date (Note) -
Expired
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Abstract
A method of providing motion compensation (i.e. phase, doppler frequency, and range closure correction) for wide band synthetic aperture radar (SAR) or classification/identification radar modes is disclosed. An improved radar system employing the method is also disclosed. The method involves dividing the motion compensation into both a focusing function and a range closure function. Either or both these functions is achieved by modifying the transmitted signal. For stretch waveform processing systems, the method involves generating both the transmitted and reference signals. The radar system includes a waveform generator capable of implementing the various motion compensation techinques when the transmitted waveform is a linear FM waveform.
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