相位差测量是两同周期正弦电量对应点间角度差值的测量。
...办 关键词：相位差测量；快速傅里叶变换；可编程门阵列；坐标旋转数字计算机 [gap=694]Key words: phase difference measurement; fast Fourier transform(FFT); field programmable gate array(FPGA); coordinate r...
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...相位差测量 [gap=1585]; screw-pitch precision; dynamic measure; phasic compare with subdividing pulse; phasic difference measure ...
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由于功率测量结果必定存在偶然误差，会导致微波相位差测量结果不精确。
But the power's error makes the error of microwave's phase shift.
传统的相位差测量系统，因其工作的频段窄，测量精度低，已不能满足现代相控阵技术的要求。
With its narrow operating frequency scope and low measuring precision, traditional phase difference measuring system can 't satisfy the requirement of modern phase array technology.
介绍了一种主要由8051单片机、MAX7219驱动的LED数码显示电路构成的相位差测量仪。
A new instrument which can measure the phase difference by 8051 microcontroller and LED digital display current driven by MAX7219 is introduced.
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