Time Discriminating Design for High Precision Pulsed TOF laser Rangefinder
The purpose of a time discriminator is to decide when the input is something you are interested in. It does this by putting out a logic pulse when the input signal meets an adjustable threshold value. A low cost high performance constant fraction discriminator (CFD) for laser rangefinder using pulsed TOF (time of flight) is proposed with the accuracy been improved. The theory of CFD is deduced and discussed and a distance measuring system has been established and experimental evidence is presented to show the feasibility of solving the time walking error problem to amend the precision and improving the environmental applicability, the distance error of +/-0.5mm was observed in the lab condition. The advantages of this instrument are highlighted and the experimental results are presented.
time discriminating TOF rangefinder CFD walking error.
Dongqing Shen Jianyong Chen Wancai Li Hong Jiang Zhenyu Li
Laser Optoelectronics Lab The Third Research Institute of the Ministry of Public Security, Shanghai, P.R. China
国际会议
上海
英文
1951-1956
2011-10-21（万方平台首次上网日期，不代表论文的发表时间）