Digital Signal Processing Method and Implementation For Pulse Laser Rangefinder

摘要：

The laser echo pulses of a Pulse Laser Rangefinder are narrow,weak and low SNR (Signal-to-Noise Ratio) signals.Digital signal processing method was presented for such signals to improve SNR. A digital signal processing circuit of a Pulse Laser rangefinder was designed,based on DSP (Digital Signal Processor and CPLD chips. The algorithms of digital filtering,pulse accumulation,target detection and tracking are all implemented in the DSP chip. The CPLd chip was used to design the digital interface circuit. The experiments were completed and showed that compared with traditional pulse laser ranging method,digital signal processing method increased the sNR of echo pulse signal clearly,accordingly improved ranging ability of Pulse Laser Rangefinder. At the same time,the high-speed DSP chip ensures real-time ranging.

关键词： Pulse Laser Rangefinder digital signal processing SNR.

作者: Jianke Li Baojun Zhao Linbo Tang Xiaoxia Zhao

作者单位: Center for Research on Radar Technology,BIT,Beijing 100081,China College of Information Technology,H Center for Research on Radar Technology,BIT,Beijing 100081,China Electro-optical Equipment Research Institute of AVIC I

会议类型: 国际会议

会议名称: 2009 9th International Conference on Electronic Measurement & Instruments(第九届电子测量与仪器国际会议 ICEMI2009)

会议地点: 北京

会议语种:英文

页码: 289-293

在线出版日期: 2009-08-16（万方平台首次上网日期，不代表论文的发表时间）