The deformation information is obtained from ultrasonic echotimedelay.
软组织的形变信息是通过超声回波延迟时间得到的。
2
The estimation of timedelay and scale of wideband echo is addressed.
研究了水下宽频带信号时延和尺度的估计问题。
3
Using simulation echo wave and accurate timedelay circuit to measure ranging ability, using CCD to grasp laser facular to measure divergence of laser pulse, the digitized methods are realized.