ultrasonic echo

常见例句

The launch system uses ultrasonic echo and reflection of the time difference to measure the distance test.
该零碎应用发射超声波与反射回波时间差来测量待测间隔。
Based on the mode of ultrasonic echo, this paper designs a frequency-dependent compensation filter to compensate the absorbed attenuation when the ultrasound transmits in a tissue.
在建立超声回波信号的数学模型的基础上，设计了频率补偿滤波器。有效补偿了超声传播过程中的吸收衰减；
It is proved by simulation and experiment that we can obtain the TDE value precisely by this method and simultaneously the effect on TDE because of the ultrasonic echo specialty is avoided.
仿真与实验研究表明，该方法在高信噪比下可以精确得到时延估计值，同时避免了超声回波信号的慢衰减高频振荡特性对时延估计带来的影响。