摘要
针对脉冲式激光测距在短距离测量中相对误差较高的缺点,提出了一种改进插值算法,对相关检测得到的若干采样点进行加权插值运算,从而得到被测目标的准确距离。并设计了激光测距实验电路,对接收到的激光回波信号进行整形放大,采用MPS430F149实现插值计算,得到被测距离。实验表明:利用该测距仪对100 m以内距离的测量,其精度等级可达1.0。
According to the pulse laser ranging relative error in short distance measurement is higher, this paper proposed an improved interpolation algorithm. Several nodes of the correlation detection were adopted to weighted interpolate. So as to the accu- rate distance of measured target was gotten. And the laser ranging experimental circuit was designed. The received laser echo signal was shaped and amplified, and then MPS430F149 realized interpolation calculation and achieved measured distance. Experiment shows that the measurement precision within 100 m distance can reach 1.0 level.
出处
《仪表技术与传感器》
CSCD
北大核心
2013年第12期97-98,101,共3页
Instrument Technique and Sensor
基金
中央高校基本科研业务费资助(DX1205B)
