echo Doppler indicator 多普勒回波指示器 ; 回波都卜勒指示器 ; 回声多普勒指示器
echo Doppler 回波都卜勒指示器
color echo doppler 彩色多普勒超声
echo doppler spectra 回波多普勒谱
transesophageal echo-doppler 食道超声多普勒
sea echo doppler spectrum 回波多普勒谱
calculation of echo doppler frequency 回波多普勒频率计算
spectral doppler-echo 频谱多普勒
Several important parts are analysed and discussed, which include echo signal, azimuth processing, range processing multi-looks processing and Doppler parameters estimation for spaceborne SAR.
分别对星载sar处理的雷达回波信号、距离处理、方位处理、多视处理和多普勒参数估计几个主要部分进行了分析和讨论。
According to Doppler theory, simulated echo signal comprise the corresponding Doppler Spectrum, then ocean current velocity can be simulated.
并根据模拟回波信号中包含有相应的多谱勒谱的信息，模拟了海流的流速。
In the experiment, We have found that bubbles at various grades are distinctly different in the envelopes of Doppler echo spectrum.
通过实验，作者发现了不同级别的气泡在多普勒回波频谱包络上有明显区别。
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