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- W2391642585 abstract "When Linear Frequency Modulated Continuous Wave(LFMCW) Lidar detecting several moving targets,IF signals of different targets are superimposed.The range and speed of targets could not be observed from the IF signal spectrum.A new multi-target detection method based on secondary mixing and varied period FM decoupling for LFMCW Lidar is presented in this paper.Doppler frequency is obtained by secondary mixing of IF signal through this method.Then the targets’ Doppler frequency is matched by varied period FM at different chirp rates to eliminate false signal and obtain the speed of targets.The speed information is used to build the compensation signal for the original IF signal in order to obtain the range information of targets.An IF signal containing three different targets is simulated by this method.Target speed errors in the simulation are 2.67%,1.01% and 0.01% respectively,while target range errors 0.10%,0.19% and 0.28%.Simulation results indicate that the new method can obtain the information of multi-target with high accuracy." @default.
- W2391642585 created "2016-06-24" @default.
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- W2391642585 date "2012-01-01" @default.
- W2391642585 modified "2023-09-23" @default.
- W2391642585 title "Secondary mixing varied period FM decoupling method for LFMCW Lidar" @default.
- W2391642585 hasPublicationYear "2012" @default.
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