TY - GEN
T1 - Digital signal processing method and implementation for pulse laser rangefinder
AU - Li, Jianke
AU - Zhao, Baojun
AU - Tang, Linbo
AU - Zhao, Xiaoxia
PY - 2009
Y1 - 2009
N2 - 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.
AB - 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.
KW - Digital signal processing
KW - Pulse laser rangefinder
KW - SNR
UR - https://www.scopus.com/pages/publications/71549131317
U2 - 10.1109/ICEMI.2009.5274873
DO - 10.1109/ICEMI.2009.5274873
M3 - Conference contribution
AN - SCOPUS:71549131317
SN - 9781424438624
T3 - ICEMI 2009 - Proceedings of 9th International Conference on Electronic Measurement and Instruments
SP - 1289
EP - 1293
BT - ICEMI 2009 - Proceedings of 9th International Conference on Electronic Measurement and Instruments
T2 - 9th International Conference on Electronic Measurement and Instruments, ICEMI 2009
Y2 - 16 August 2009 through 19 August 2009
ER -