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介绍了飞机供电系统中直流电压脉动量及脉动频谱的一种数字式测量方法。利用数字滤波技术将采样值分频段进行处理，解决了频谱分析中计算量大和要求存储容量大的问题，该方法已被应用于飞机供电参数测试系统中。
A digital measurement method of DC voltage pulsation and pulsation spectrum in aircraft power supply system is introduced. The digital filtering technique is used to process the sampling frequency band, which solves the problem of large amount of calculation and large storage capacity in spectrum analysis. This method has been applied to the aircraft power supply parameter testing system.