echoranging

基本解釋

As an important feature, the characteristics of echo stretching affects SNR of received laser echo signal and ranging accuracy.
脈沖展寬特性是激光回波的重要特性，其影響到回波接收信噪比和測(cè)距精度。
Maximum entropy spectral estimation and LMS adaptive algorithm were proposed to extract the reflection echo signal of laser ranging system.
提出了最大熵譜估計(jì)和LMS自適應(yīng)算法提取激光測(cè)距系統(tǒng)的反射回波信號(hào)。
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.
回波聲程定位法和兩輪廓線(xiàn)同時(shí)回波聲程計(jì)算法配合使用，可準(zhǔn)確計(jì)算出未焊透缺陷的高度。