摘要
利用声表面波（ＳＡＷ）器件设计了一个多通道窄带滤波器组对ＣＯ２相干激光雷达的信号进行有效处理。研制了一个ＣＯ２相干激光雷达光学头系统的信号模拟－数字处理系统，对３５～５５ＭＨｚ的外差信号进行计算机ＦＦＴ预处理，得到了较好的效果。
A multichannel narrow band-pass filter-group with the surface acoustic wave (SAW) device used is descried in this paper for signal pre-processing in coherent CO2 laser radar. An analog-digital signal processing unit is developed in design of the optical system of a coherent CO2 laser radar. Satisfied result has been abtained when the signal processing unit is used for FFT process of 35 -55MHz coherent signal in use of a computer.
出处
《红外与激光工程》
EI
CSCD
1996年第4期41-48,共8页
Infrared and Laser Engineering
关键词
声表面波器材
激光雷达
相干雷达
信号处理
Suface acoustic wave device Laser radar Coherent radar Fast fourier transformation Signal processing.
