小波分析在激光测距传感器中的应用

激光宽高检测系统利用激光测距原理对行驶车辆的宽高进行检测，而所测信号掺杂有较大的车辆边缘光噪声，降低了系统的测量准确性。鉴于小波分析的时频局部特性，将小波分析法应用到消除高频光噪声干扰的应用中，提高激光车辆宽高检测系统的准确性，并通过Matlab中小波分析工具仿真和实际验证，证明可以消除光噪声对系统的影响和达到提高测量准确度的目的。

Application of wavelet analysis in laser ranging sensor

Laser width-height detection system uses laser ranging principle to detect width and height of moving vehicle,and the measured signal is mixed larger vehicles edge optical noise,which reduce measurement accuracy of system. In view of time-frequency local properties of wavelet analysis,wavelet analysis method is applied to application of high-frequency optical noise interference eliminating,to improve accuracy of width-height of vehicle laser detection system. And through simulation and verification of wavelet analysis tool in Matlab,prove that eliminate influence of light and noise on the system has reached the purpose of improving measurement accuracy.