ABSTRACT
This chapter discusses the main aspects and foundations of analog-to-digital signal conversion and the main principles underlying the design of analog-to-digital converters. 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. Under digital signal processing of target return signals in CRSs, there is a need to carry out a quantization of sampled values of complex envelope and phase or in-phase and quadrature components of radio signals in addition to sampling. Manifold types of analog-to-digital conversion are employed by digital signal processing subsystems in CRSs, for instance, the analog-to-digital conversion of voltage/current, time intervals, phase, frequency, and angular displacement. In the case of the phase-code-manipulated target return signal, the digital GD (DGD) employed by a digital signal processing subsystem in a CRS uses only several convolving blocks. Consider the problem of work content to realize the DGD in frequency domain.
