... 测频电桥 frequency measuring bridge; 测频精度 frequency-measurement accuracy; 测频扩展法 frequency range expanding method ...
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This new method reduces the influence of time response of Fourier filtering on frequency measurement and improves the accuracy of transient frequency measurement.
新的算法有效地补偿了富氏滤波的时间响应对频率测量造成的影响，提高了算法的暂态测频精度。其程序和计算非常简单。
So, for the same SNR, edge techniques can improve the measurement accuracy of Brillouin frequency shift greatly comparing with the conventional detection techniques.
所以，在相同信噪比下，与常规检测技术相比，边缘检测技术可以大大提高布里渊频移测量精度。
Proposed a novel scheme to measure the Brillouin frequency shift and power change, and analyzed the measurement accuracy of Brillouin frequency shift.
提出了一种同时测量布里渊频移和功率变化的新方案，同时对系统的布里渊频移测量精度进行了分析。
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