摘要
针对激光远程测距或恶劣环境测距中回波弱信号信噪比低 ,难以提取的困难 ,提出运用数字相关检测技术进行处理 ,并对单脉冲互相关、多脉冲互相关等数字处理技术作了介绍 ,并结合激光雷达的测距系统进行一系列仿真和计算 。
The SNR of faint signal is very low in the long distance laser ranging or bad circumstance laser ranging, so it is very difficult to recognize the echo wave. This paper introduces digital correlation detection method and uses it to process the signal. Single signal correlation and multi signal correlation are simulated and calculated with laser ranging radar and a good results is got. This study will help to greatly improve the ability of laser ranging radar.
出处
《中国激光》
EI
CAS
CSCD
北大核心
2002年第7期661-665,共5页
Chinese Journal of Lasers
关键词
激光测距
弱信号
数字相关检测
仿真
Distance measurement
Radar measurement
Signal to noise ratio
