Ambiguity Function Analysis of Adaptive Colored-Noise Radar Waveforms
Adaptive radar waveforms were designed to be spectrally orthogonal to the received time-varying interference environment. This provides a natural defense against hostile or benign radio frequency interference. An ambiguity function analysis was presented for colored waveforms that graphically illustrates ambiguities, resolution/accuracy of range (time) and Doppler (frequency) estimates, and inherent interference rejection capabilities. Both eigenvector and multistage Wiener filter methods were used to construct such waveforms. The techniques presented illustrate a general methodology for designing adaptive waveforms trading off interference rejection performance, algorithm complexity, sidelobe levels, Doppler tolerance, and ambiguities.
Ambiguity Function Analysis of Adaptive Colored-Noise Radar Waveforms, Page 1 of 2
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