| 无人机抗火花电磁干扰的一种方法 |
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| 引用本文： | 党群,段鹏,冯今朝.无人机抗火花电磁干扰的一种方法[J].信息安全与通信保密,2011(2):38-40. |
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| 作者姓名： | 党群 段鹏 冯今朝 |
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| 作者单位： | 1. 西北工业大学365研究所,陕西,西安,710072
2. 咸阳供电局,陕西,咸阳,712000 |
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| 基金项目： | 陕西省2010年度工业攻关项目资助 |
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| 摘 要： | 无人机活塞发动机工作时将产生很强的电磁干扰，如果遥控接收机不采取干扰抑制措施将严重影响正常的通信。通过分析发动机火花塞电磁干扰产生的机理，提出了一种宽带抑制电磁干扰的接收机实现方案，通过缩短信道脉冲响应长度及自适应限幅等措施降低火花塞电磁干扰在时域上的扩展，从而将发动机火花塞产生的电磁干扰影响局限在较短的时间内，并大幅降低干扰能量。仿真和试验表明，可有效降低火花塞电磁干扰对数据解调的影响。
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| 关 键 词： | 火花塞 电磁干扰 脉冲响应 |
Suppression of EMI Caused by Piston Engine Spark in UAV Telecontrol Receiver* |
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| DANG Qun,DUAN Peng,FENG Jin-chao.Suppression of EMI Caused by Piston Engine Spark in UAV Telecontrol Receiver*[J].China Information Security,2011(2):38-40. |
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| Authors: | DANG Qun DUAN Peng FENG Jin-chao |
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| Affiliation: | DANG Qun1,DUAN Peng1,FENG Jin-chao2(1No.365 Institute,Northwest Polytechnical University,Xi'an Shaanxi 710072,China,2Xianyang Power Supply Bureau,Xianyang Shaanxi 712000,China) |
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| Abstract: | The electromagnetic interference caused by piston engine spark in UAV would badly affect the receiver's performance if the receiver does not take measure to suppress the interference.Based on mechanism analysis of the spark interference,a method for suppressing EMI(Electromagnetic Interference) is proposed,which suppresses the EMI through receiver's bandwidth.The time spread of EMI is reduced through shortening channel impulse response length and by adaptive amplitude limiting,thus restraining EMI caused by... |
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| Keywords: | spark plug EMI(electromagnetic interference) impulse response |
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