ultrasonic echo

常見例句

The launch system uses ultrasonic echo and reflection of the time difference to measure the distance test.
該零碎應(yīng)用發(fā)射超聲波與反射回波時(shí)間差來(lái)測(cè)量待測(cè)間隔。
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.
在建立超聲回波信號(hào)的數(shù)學(xué)模型的基礎(chǔ)上，設(shè)計(jì)了頻率補(bǔ)償濾波器。有效補(bǔ)償了超聲傳播過程中的吸收衰減；
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.
仿真與實(shí)驗(yàn)研究表明，該方法在高信噪比下可以精確得到時(shí)延估計(jì)值，同時(shí)避免了超聲回波信號(hào)的慢衰減高頻振蕩特性對(duì)時(shí)延估計(jì)帶來(lái)的影響。