应答式旋转目标的微多普勒研究
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V45

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Microdoppler research on cooperative spinning target
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    摘要:

    在旋转飞行目标的飞行过程中,目标旋转产生的微多普勒会在接收信号中产生调制,会对运动参数测量产生影响。微多普勒频率由于其时变的性质,在不同条件下对运动参数的测量也有不同程度的影响。通过结合应答机工作模式,推导了合作式旋转目标的微多普勒模型,基于此模型给出了接收信号的理论模型,验证了微多普勒对接收信号的调制及频谱影响,通过试验仿真验证了模型的正确性,并分析了试验仿真结果,最后给出了适于不同运动参数测量的观测区间。

    Abstract:

    In the velocity measurement of the spinning flying target, the receiving signal would be modulated by the microDoppler caused by the spinning of target, which would effects the measurement of motion parameter. The microDoppler with a property of time varying would different effects on the measurement of motion parameter under different conditions. In this paper the microDoppler model of cooperative spinning target is deduced with the operating mode of transponder. And the theoretical model of receiving signal is derived based on the microDoppler model. Then we have verified the microDoppler modulation and the effect of the frequency spectrum, and validated the correctness of the model through the simulation. At last the measurement interval applied to the measurement of different motion parameter is concluded by the analysis of the simulation.

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屈文星,杨文革,张若禹.应答式旋转目标的微多普勒研究[J].电子测量技术,2015,38(11):32-36

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  • 在线发布日期: 2016-03-01
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