echoranging

基本解释

As an important feature, the characteristics of echo stretching affects SNR of received laser echo signal and ranging accuracy.
脉冲展宽特性是激光回波的重要特性，其影响到回波接收信噪比和测距精度。
Maximum entropy spectral estimation and LMS adaptive algorithm were proposed to extract the reflection echo signal of laser ranging system.
提出了最大熵谱估计和LMS自适应算法提取激光测距系统的反射回波信号。
The use of contour acoustic echo location and two contours at one time echo-ranging calculation method in conjunction with can calculate the height of the shallow weld well and truly.
回波声程定位法和两轮廓线同时回波声程计算法配合使用，可准确计算出未焊透缺陷的高度。