Resolution of imaging device on using a square-wave chart is generally expressed with Amplitude Response(AR).
成像装置通常使用方波图卡的分辨率与振幅响应（AR）表达。
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。
The talk will describe measurement techniques in THz spectroscopy and imaging and related calibration methods for frequency, amplitude, resolution and dynamic range.
讲座将介绍在太赫兹光谱和成像和频率，振幅，分辨率和动态范围测量技术相关的校准方法。
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