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	Study on pulsed laser range finder based on digital polarity correlation algorithm
	Qin Lai-gui ; Huo Yu-jing ; He Shu-fang
	2010-05-06 ; 2010-05-06
关键词	Experimental/ laser beams laser ranging optical correlation optical transmitters VLSI/ pulsed laser range finder digital polarity correlation algorithm real-time signal processing antijamming direct threshold detection method digital polarity correlation function parallel correlation computation very large scale integration VLSI chip arrival delay interval jitter laser pulse width sampling frequency laser transmitter design laser technique/ A4262E Metrological applications of lasers A4260H Laser beam characteristics and interactions A4280P Optical rangefinders A4230 Optical information, image formation and analysis A0630C Spatial variables measurement B4360E Metrological applications of lasers B4330 Laser beam interactions and properties B6135 Optical, image and video signal processing B7320C Spatial variables measurement
中文摘要	The real-time signal processing of laser pulses is one of the key technologies in the laser rangefinding. The increased ability of anti-jamming and detectable distance are the main problems to be solved. Comparing with the direct threshold detection method, digital correlation techniques offer a good possibility for improving the sensitivity of pulsed laser ranging system. The digital polarity correlation function is introduced, which can effectively reduce the hardware expended and achieve the parallel correlation computations in a single very large scale integration (VLSI) chip to increase the data throughput. Based on this digital polarity correlation system, some simulations are presented to confirm the feasibility of estimating lime-of-flight from the noisy echoes, and an analysis of the influences on correlation results caused by pulse repetition rate, arrival delay, interval jitter, pulse width and sampling frequency is carried out. which provides a theory basis for laser transmitter designs used in correlation-based measurement systems.
语种	中文 ; 中文
出版者	Science Press ; China
内容类型	期刊论文
源URL	[http://hdl.handle.net/123456789/10867]
专题	清华大学
推荐引用方式 GB/T 7714	Qin Lai-gui,Huo Yu-jing,He Shu-fang. Study on pulsed laser range finder based on digital polarity correlation algorithm[J],2010, 2010.
APA	Qin Lai-gui,Huo Yu-jing,&He Shu-fang.(2010).Study on pulsed laser range finder based on digital polarity correlation algorithm..
MLA	Qin Lai-gui,et al."Study on pulsed laser range finder based on digital polarity correlation algorithm".(2010).

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