一种基于改进插值算法的手持激光测距仪  

Hand-Held Laser Rangefinder Based on Improved Interpolation Algorithm

作　　者：王辉俊[1] 刘永涛[1] 尤文强[1] 刘殿东[2] 朱斌[3] 

机构地区：[1]华北科技学院电子信息工程学院,河北三河101601 [2]国家仪器仪表元器件质量监督检验中心,辽宁沈阳110043 [3]辽宁广播电视台,辽宁沈阳110003

出　　处：《仪表技术与传感器》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)

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.

关 键 词：激光测距 脉冲 MPS430F149 插值 

分 类 号：TN247[电子电信—物理电子学]