Abstract

The signal processing task for radar systems with large instantaneous bandwidth and wide range coverage stresses the throughput rate of conventional digital processors. In this paper, a hybrid analog signal processor for wideband pulse-Doppler radar¹ is described. It offers the potential of a compact, high-throughput processor. In the processor, three types of analog signal processing devices are incorporated. They are: (1) a surface-acoustic-wave (SAW) convolver² to perform programmable pulse compression for radar signals with 200-MHz instantaneous bandwidth in order to provide target range information with 0.75-m resolution, (2) optoelectronic sample-and-hold (S/H) circuits³ to perform the range gating function and the buffering of the sampled data into the Doppler processor, and (3) charge-coupled-device (CCD) matrix-matrix-product (MMP) chips⁴ to perform Doppler Fourier analysis in order to provide target velocity information.

© 1985 Optical Society of America