Waveform selection is a critical component of an interferometer architecture design. Achieving angle accuracy in complex target and interference environments can be accomplished only with the proper choice of waveforms. Mediumto highresolution waveforms can mitigate the effects of clutter and multipath that can degrade phase integrity and angle accuracy. When the clutter and/or multipath are spatially distributed, the range sidelobe performance resulting from the matched filter is critical in reducing the effects of distributed clutter and multipath. Because an interferometer may use small distributed arrays with relatively large beamwidths, the selection of waveforms to mitigate the scattering effect or to resolve target features becomes an important part of an interferometer architecture. In this chapter, several types of frequencyand phase-modulated waveforms are defined, and their impact on post-compression angle accuracy is discussed.
Radar Waveforms, Page 1 of 2
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