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一、引言无线电近炸引信用的电源多为化学电池,这种电池在弹道飞行过程中,往往伴随较大的噪声,一般为几十或数百毫伏,严重时噪声电压峰值可达1～2伏。引信的高频电路往往将这种噪声的一部分与多普勒信号一起传输给引信的低频信号处理电路。有时电池噪声的功率谱集中在低频多普勒信号通频带之内或附近的区域,使低频信号处理电路很难将这种噪声和
I. INTRODUCTION Most of the power sources used for radio near fuze are mostly chemical batteries. Such batteries are often accompanied by large noises during ballistic flight, usually tens or hundreds of millivolts, and in severe cases, the peak value of noise voltage can reach 1 ~ 2 volts. High frequency circuits of fuses tend to transmit part of this noise along with the Doppler signals to the low frequency signal processing circuitry of the fuses. In some cases, the power spectrum of the battery noise is concentrated in or near the pass band of the low-frequency Doppler signal, making it difficult for the low-frequency signal processing circuit to combine this noise and