Target recognition based on phase noise of received laser signal in lidar jammer

• 来源期刊: 中国光学快报（英文版）
• 年，卷（期）: 2017,（10）
• 页码范围: 11-14
• 页数: 4页
• 语种: 英文
• DOI: 10.3788/COL201715.100302

摘要

In this Letter,a method based on the effects of imperfect oscillators in lasers is proposed to distinguish targets in continuous wave tracking lidar.This technique is based on the fact that each lidar signal source has a specific influence on the phase noise that makes real targets from the false ones.A simulated signal is produced by complex circuits,modulators,memory,and signal oscillators.For example,a deception laser beam has an unequal and variable phase noise from a real target.Thus,the phase noise of transmitted and received signals does not have the same power levels and patterns.To consider the performance of the suggested method,the probability of detection (PD) is shown for various signal-to-noise ratios and signal-to-jammer ratios based on experimental outcomes.