Frequency Acquisition Approach in Polarization-Modulated Ranging Based on Lock-in Analysis
Shuyuan Gao,
Yue Wang,
Shaofei Chen
et al.
Abstract:In this study, we propose a frequency measurement and estimation approach based on a lock-in analysis for precise frequency determination in polarization-modulated ranging signals. In this method, the modulation signal of an electro-optic modulator (EOM) is manipulated to introduce an intermediate frequency (IF) component into the detected signal. Subsequently, the detected signal is analyzed using lock-in analysis techniques to extract the necessary frequency component, and a new swept frequency waveform is g… Show more
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