Orthogonal detection can give us both the amplitude information for gray-scale imaging and phase shift information for doppler spectrum analysis.
正交检波方法既能给出灰度超声成像所需要的回波的幅值信息，也能给出多普勒超声成像所需要的回波的相移信息。
With modern spectral estimation algorithm, spectrum analysis on Doppler frequency caused by vehicles radar movement is carried out in DSP chip.
利用现代谱估计的算法，在DSP芯片中对检测车辆雷达运动产生的多普勒频率进行频谱分析。
It uses a conventional constant false-alarm-rate(CFAR) detection procedure but the thresholding scheme is based on regression analysis of power spectrum values along range and Doppler cells.
该方法采用传统的恒虚警率（CFAR）检测方法，但其门限设置是基于沿距离和多普勒单元功率谱值的回归分析。
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