Waveforms design for modern radar: the chirp signal fifty + years later

摘要

The optimal design of chirp radar waveforms has toudsatisfy conflicting requirements. Optimal solutions for differentudvalues of the compression ratio are considered, evaluated andudcompared with each other. A proposed solution has theudadvantage of guaranteeing low range sidelobes (less than -50 dBudbelow the peak for compression ratios greater than 256) whileudmaintaining the transmitter to operate in saturation. The “chirp”udwaveforms, with either constant or non-constant amplitude, areudalso candidates for the build-up - by combination - ofud“semideterministic” signals for the use in noise and MIMOudradar.