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基于位置替代法的无线电引信混响室敏感度测试方法

DOI: 10.13336/j.1003-6520.hve.2015.01.045, PP. 320-326

Keywords: 敏感度测试,分步测试法,位置替代法,混响室,无线电引信,归一化场强

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Abstract:

针对引信敏感度分步测试方法工作量大、测试时间长等问题,提出了基于位置替代法的无线电引信混响室敏感度测试方法。利用混响室统计均匀的特性,将场强测试设备与受试设备同时置于混响室内进行测试,用测试位置平均场强替代引信受试位置场强,从而得到引信敏感度阈值。试验结果表明各测试频点在不同采样点处测量值的平均值与均匀场测试结果相关性最好,相关系数可达95%,最小值与均匀场测试结果误差最小,其相对误差在3dB范围内。与分步测试方法相比,该测试方法避免了试验中对受试设备的移动,减小了工作量,具有更好的实用性。

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