Simulation Study on the Laser Range Finder Based on Pseudorandom Phase Modulation and Heterodyne Detection

摘要：

A laser range finder used the technique of heterodyne detection and pseudorandom phase modulation is proposed. The detail principle of the detection system is presented. Simulation results show that 34.6 dB signal to noise ratio can be achieved under the laser transmit power of 0.1 W,pulse length of 82us,telescope aperture of 0.1 m,local oscillator power of lmW,target distance of 100m. And the system possesses lOdB advantage in system sensitivity compared with the system utilizes the pseudorandom intensity modulation combined with single photon detection.

关键词： laser remote sensing space-borne laser altimeter pseudorandom phase modulation heterodyne detection signal to noise ratio

作者: Fu Yang Yage Zhan Ying Guo Qinyu Yang Shaolin Xue

作者单位: No 2999,North Renmin Road,Songjiang,Shanghai,201620,P. R. China

会议类型: 国际会议

会议名称: 2011 International Conference on Opto-Electronics Engineering and Information Science(2011光电电子工程与信息科学国际会议 ICOEIS 2011)

会议地点: 西安

会议语种:英文

页码: 2626-2629

在线出版日期: 2011-12-23（万方平台首次上网日期，不代表论文的发表时间）