echo wave

Sound field characteristic and echo wave feature in ultrasonic nondestructive test of electron beam weld

电子束焊缝超声无损检测声场特性及回波特征

Then discussing the phase information and Doppler characteristic of target echo wave in the pulse Doppler phase radar.

并且讨论了在脉冲多普勒相参体制雷达下目标回波的相位信息以及目标信号的多普勒谱特性。

Using simulation echo wave and accurate time delay circuit to measure ranging ability, using CCD to grasp laser facular to measure divergence of laser pulse, the digitized methods are realized.

采用模拟回波和精密延时电路检测照射能力、用CCD采集激光光斑测试激光束散角，实现了整机性能的数字化检测。

radar total echo wave in a resolution cell is the joint contribution of echo wave from different small scatters within the resolution cell.

分辨单元的雷达回波是分辨单元内小散射体回波的综合贡献

The Effects of Step Frequency and Conical-scan Antenna on the Target Echo Wave Signal

频率步进圆锥扫描体制天线对目标回波信号的影响

Obtaining the Signature of Radar Target Echo Wave forms by Deconvolution

用反卷积法获得雷达目标回波波形特征