Anti-active Noise Jamming Performance of Pulse Doppler Fuze
Anti-active Noise Jamming Performance of Pulse Doppler Fuze
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发表时间：
2015
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通讯作者：
Z. Li
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作者：
Z. Li
为了揭示脉冲多普勒引信的干扰机理，提高脉冲多普勒引信的抗干扰性能，基于处理增益和功率谱表征参数，对脉冲多普勒引信的抗有源噪声干扰性能进行了定量研究。推导了射频噪声干扰、噪声调幅干扰和噪声调频干扰下从回波接收到相关检测过程的输入信噪比、输出信噪比和处理增益。得到了影响PD引信抗有源噪声干扰性能的信号特征参数，并进行了仿真验证。定量分析和仿真结果表明，PD引信具有较强的抗有源噪声干扰性能，其抗有源噪声干扰性能主要由脉冲占空比和多普勒滤波器带宽决定。
The anti-active noise jamming performance of pulse Doppler( PD) fuze is quantitatively studied based on the characterization parameters of processing gain and power spectrum in order to reveal the jamming mechanism and improve the anti-jamming performance of PD fuze. The input signal-to-jamming ratio,output signal-to-jamming ratio and processing gain of the procedure from the echo reception to the correlation detection under the radio frequency noise jamming,noise amplitude modulation jamming and noise frequency modulation jamming are deduced. The signal feature parameters affecting the anti-active noise jamming performance of PD fuze are obtained,and the simulation verification is carried out. The quantitative analysis and simulation results indicate that the PD fuze has the strong performance of antiactive noise jamming,and its performance of anti-active noise jamming is mainly determined by the pulse duty cycle and the bandwidth of Doppler filter.