| 直升机旋翼回波特性建模 |
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| 引用本文： | 朱迪.直升机旋翼回波特性建模[J].上海航天,2009,26(5):41-45. |
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| 作者姓名： | 朱迪 |
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| 作者单位： | 上海机电工程研究所,上海,200233 |
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| 摘 要： | 给出了雷达半主动寻体制的直升机旋翼回波模型，分析了直升机旋翼回波的时频特性，以旋翼真实参数对模型进行了仿真，并研究了直升机旋翼回波在时域上的调制效应及频域分布特点。结果表明：理论模型所得结果与外场实验的导引头跟踪直升机实验数据吻合。
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| 关 键 词： | 悬停直升机 旋翼回波模型 调制 时频特性 频域分布 |
Identity of Rotor Blade Echo Signal of Hovering Helicopter |
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| ZHU Di.Identity of Rotor Blade Echo Signal of Hovering Helicopter[J].Aerospace Shanghai,2009,26(5):41-45. |
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| Authors: | ZHU Di |
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| Institution: | ZHU Di (Shanghai Electro-Mechanical Engineering Institute, Shanghai 200233, China) |
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| Abstract: | The model of rotor blade echo signal of a hovering helicopter with radar semi active system was established in this paper. The characteristics of the echo in the time domain of the helicopter were analyzed. The simulation was done with the real parameter of rotor blade, and the modulation effect in the time domain and distributing characteristics in the frequency domain were studied. The results showed that emulation results of the backscattered model were agreed with the data of the seeker tracking the helicopter in the outfield experiments with the baekseattered model. |
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| Keywords: | Hovering helicopter Rotor blade echo signal model Modulation Characteristic in time domain Distributing in frequency domain |
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