Simulation of Radar Baseband Signals From a System-Theoretical Perspective

The simulation of radar baseband signals is crucial for the development of new radar applications, especially when radar sensors are supposed to measure time-varying scenarios. This paper proposes to investigate the measurement problem from a system-theoretical perspective by regarding radar channels as linear time-variant systems such that the presented approach becomes independent from specific radar modulation schemes. In order to demonstrate that the provided methods are generally applicable, we show how it is applied using conventional modulation techniques based on Linear Frequency Modulated and Orthogonal Frequency Division Multiplexing signals. By using the proposed method to simulate a simple radar channel with one moving point target, we demonstrate that the presented results are easily applicable and that they can be extended even without having a deep system-theoretical background.