Direct Digital Signal Generation for Microwave and Millimeter-Wave Radar Systems

摘要

Direct digital synthesizers provide broadband and flexible signal generation. Hence, they are well suited for radar applications. In this paper, we considertheEUVIS DS872 device that has a bandwidth of 3GHz and an internal memory. The goal of this work is to evaluate its usability in frequency modulated continuous wave (FMCW) radar systems. An experimental test environment has been created, where phase noise and linearity measurements have been performed. A final study considers the amplitude and phase transition after the frequency content of the signal has changed.