Acta Photonica Sinica, Volume. 41, Issue 8, 967(2012)
Design of a High-speed Data Acquisition System Based on FPGA for Laser Radar
A high-speed data acquisition and preprocessing system was proposed based on FPGA for echo signal sampling of laser radar. By use of embedded DRAM and synchronous finite state-machine, the designed system, triggered by a 1 kHz excitation signal, can sample the signal at the rate of 20 MHz, and the 4 096 sampled data can be accumulated correspondingly more than 5 000 times for the purpose of filtering background noise. The completed system was applied in a Mie scattering laser radar, which can achieve the spatial and temporal resolution of 7.5 meter and the detection range of 30 km.
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XIN Wen-hui, LI Shi-chun, HUA Deng-xin, SONG Yue-hui, DI Hui-ge, ZHOU Zhi-rong. Design of a High-speed Data Acquisition System Based on FPGA for Laser Radar[J]. Acta Photonica Sinica, 2012, 41(8): 967
Received: Feb. 7, 2012
Accepted: --
Published Online: Aug. 15, 2012
The Author Email: Wen-hui XIN (xinwenhui@xaut.edu.cn)