The Parameters Optimization of LFM-FSK Hybrid Waveform for Automotive Radar System

Abstract

LFM-FSK is a new type of radar signal modulation waveform. This new waveform combines the merits of Linear Frequency Modulation (LFM) and Frequency Shift Keying (FSK). However, the range and radial velocity estimation error will be great if the system parameters design is unreasonable in practical engineering application. To overcome the problem, this paper proposes a method to optimizing the system parameters by condition number. Numerical simulation results demonstrate that the estimation errors are no more than 1% with the optimized system parameters in no noise situation.