Frequency spectrum analyzer

摘要: A frequency spectrum analyzer adapted for use in a real time signal processing radar system is disclosed. In such plurality of sets returns, each one corresponding to returns from objects disposed like range cells, stored compressor section, the thereof being at pulse repetition (PRF) system. After storage chirp pulses produced, having dispersive Kτ. Synchronously with pulses, retrieved duration equal Each mixed produce series signals which coupled compressor. compressed into occurring related Doppler any object cell producing associated returns. The section used prior compression effectively "match" dwell time, generally several milliseconds duration, pulse, microseconds thereby enabling include practical surface acoustic wave (SAW) delay line. Further, "compressive" bandwidth, β, to, or greater than, bandwidth maximize power pulses. Means are provided adjust correspondingly effective number resolution cells analyzer.