Instantaneous Frequency Measurement using Single Sideband Modulation of Mach-Zehnder Modulators

Autonomous driving technology relies on in-vehicle radar, which plays a crucial role in detecting surrounding objects.However, in environments with multiple radars, radio interference can degrade radar performance.This paper proposes a real-time frequency measurement method based on single sideband (SSB) modulation, requiring only two instantaneous sideband values for accurate measurement.The feasibility and accuracy of the proposed method were experimentally demonstrated.