在电磁环境越来越复杂的现代战争中,引信在精确制导武器中的地位越来越重要,针对连续波调频引信抗干扰性能差,对连续波调频引信的分析大都是基于简单调制信号,由于调制信号变得越来越复杂.为了适应复杂化的发展,提出一种复合连续波调频引信.复合正弦连续波调频引信做了分析,并建立了复合正弦连续波调频引信的数学模型,之后通过对单正弦连续波调频引信和复合正弦连续波调频引信的距离截止特性仿真做了对比研究.给出了两种体制引信的距离截止特性曲线,仿真结果表明,复合正弦连续波调频引信具有更好的距离截止特性和抗干扰能力.并对复合正弦连续波调频引信接收到的回波功率以及多普勒信号进行了仿真,也验证了结论的正确性.%Due to the complex electromagnetic environment in modern warfare, fuze is becoming more and more important in precision guided weapons, FM-CW fuze is one of the main fuze systems. Current analysis of FM-CW fuze is based on simple modulation signals. But due to the needs of the battlefield, the modulated signals become more and more complex. On the basis of the principle of FM-CW fuze, a mathematical model of multi-sinusoidal FM -CW fuze was established and analyzed. Multi-sinusoidal FM-CW fuze was researched compared with single-sinusoidal FM—CW fuze. The distance cutoff characteristic curves were given. The results show that multi-sinusoidal CW -FM radio fuze has better distance cutoff characteristic and anti-jamming capability. The simulation of echo signal power and Doppler signal received by the fuze was given, and the conclusion was verified.
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