从互易性偏置调制的机理出发，将对本征频率的测量转化为对无效调制光功率响应的尖峰脉冲的测量；根据光功率响应机理，将对半波电压的测量转化为求有效调制光功率最小值。
The method comes from the mechanism of reciprocal shift modulation, which transforms the measuring of eigenfrequency into measuring the spike pulse responding to ineffective-modulation optic power.
结果表明，该方法用于噪声中调制信息检测是一种有效的手段。
The result indicates that the method is an effective way to extract the modulated information from radiated noise.
7年的使用实践表明，直流脉动电压频率调制技术对抑制声谐振现象十分有效。
The7years 'applicable practices indicate that the frequency modulation technology with dc bus voltage ripples is very effective to suppress acoustic resonances.
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