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一种用于磁场复现和屏蔽的磁干扰主动补偿技术
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作者 张海波 翟晶晶 +1 位作者 李享 周昌剑 《宇航计测技术》 CSCD 2021年第3期68-72,共5页
介绍了一种交变磁场复现系统和磁屏蔽装置中的环境磁干扰主动补偿方法,分别对主动补偿系统建模、控制参数优化、补偿参数修正、复合控制方法、电流反馈等关键问题进行了阐述,并进行了补偿试验,结果表明,该方法对典型的1Hz和50Hz环境扰... 介绍了一种交变磁场复现系统和磁屏蔽装置中的环境磁干扰主动补偿方法,分别对主动补偿系统建模、控制参数优化、补偿参数修正、复合控制方法、电流反馈等关键问题进行了阐述,并进行了补偿试验,结果表明,该方法对典型的1Hz和50Hz环境扰动磁场具有显著的补偿效果,已在(10~100)μT/m梯度磁场标准装置、低剩磁低噪声磁屏蔽室等计量装置中得到了应用。 展开更多
关键词 环境磁干扰 主动补偿 通门传感器
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Simulation of Dynamic Electromagnetic Interference Environment for Unmanned Aerial Vehicle Data Link 被引量:10
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作者 郭淑霞 董中要 +1 位作者 胡占涛 胡楚峰 《China Communications》 SCIE CSCD 2013年第7期19-28,共10页
In order to test the anti-interference ability of an Unmanned Aerial Vehicle(UAV) data link in a complex electromagnetic environment,a method for simulating the dynamic electromagnetic interference of an indoor wirele... In order to test the anti-interference ability of an Unmanned Aerial Vehicle(UAV) data link in a complex electromagnetic environment,a method for simulating the dynamic electromagnetic interference of an indoor wireless environment is proposed.This method can estimate the relational degree between the actual face of an UAV data link in an interface environment and the simulation scenarios in an anechoic chamber by using the Grey Relational Analysis(GRA) theory.The dynamic drive of the microwave instrument produces a real-time corresponding interference signal and realises scene mapping.The experimental results show that the maximal correlation between the interference signal in the real scene and the angular domain of the radiation antenna in the anechoic chamber is 0.959 3.Further,the relational degree of the Signal-toInterference Ratio(SIR) of the UAV at its reception terminal indoors and in the anechoic chamber is 0.996 8,and the time of instrument drive is only approximately 10 μs.All of the above illustrates that this method can achieve a simulation close to a real field dynamic electromagnetic interference signal of an indoor UAV data link. 展开更多
关键词 UAV data link dynamic electromagnetic interference GRA relational degree scene mapping instrument driver
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