Signal Processing in Radar Systems

2  Signal Processing by Digital Generalized Detector in Complex Radar Systems

2.1 Analog-to-Digital Signal Conversion: Main Principles

For digital signal processing of target return signals in complex radar systems (CRSs), there is a need to carry out an analog-to-digital signal conversion. This transformation is produced by two stages. In the course of the first stage, there is a need to sample the target return signal—the continuous target return signal x(t) is sampled instantaneously and at a uniform rate, once every T_s seconds. In the course of the second stage—quantization—the sampled target return signal {x(nT_s)} is converted into a sequence of binary coded words. The sampling and quantization functions are realized by analog-to-digital ...