This method researches the echo envelope model which has been simplified in this paper under range wave and time excursion, and can compute the transmitting time more accurately.
该方法研究了幅度起伏和时间漂移条件下回波包络模型，并对模型进行了简化处理，可以更准确地计算超声波渡越时间。
This paper introduces an ultrasonic ranging method based on analyzing the envelope of echo .
介绍了一种基于回波包络分析的高精度超声波测距方法。
According to the moving target's echo characteristics acquired by the frequency-modulated stepping radar, the envelope migration is firstly carried out for the subset of the compressed pulse.
根据调频步进雷达运动目标的回波特性，首先对压缩后的子脉冲进行包络平移。
SPGA algorithm compensates the envelope and phase of the echo signal which has not be corrected range migration.
SPGA算法利用估计得到的侧摆对距离徙动校正前的回波数据进行包络和相位补偿。
Results: Diffuse hepatocellular carcinoma has some features in liver size, shape, envelope, echo genicity, portal vein, etc and some clinical features.
结果：弥漫型肝癌肝大小、形态、包膜、肝内回声、门脉等在超声图像上有一定的特征性改变及有其它临床特征。
Audio effects include, amplify, normalize, equaliser, envelope, reverb, echo, reverse, sample rate conversion and more.
音频效果包括，健全，规范，均衡器，信封，混响，回声，扭转，采样速率转换，以及更多。
Audio effects include, amplify, normalize, equaliser, envelope, reverb, echo, reverse, sample rate conversion and more.
音频效果包括，健全，规范，均衡器，信封，混响，回声，扭转，采样速率转换，以及更多。
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