In total radiated power (TRP) measurements, it is essential to eliminate the effects of electromagnetic interference caused by the ambient noise. The elimination is usually achieved by shielding. However, shielding may be insufficient, especially in reverberation tents. Under this condition, additional methods are needed to suppress the noise. Practical methods are proposed to suppress the effect of uncorrelated noise signals during the TRP measurement in the reverberation tents. The methods are validated for the cancelation of communication noise, including Wi-Fi, global system for mobile (GSM), and FM signals. If the noise reference signal is available, the noise contribution can be suppressed by ratio averaging. When the reference signal is hard to obtain, blind source separation allows separating the uncorrelated signals from the combination of the intended signal and noise. For intermittent signals, threshold cancelation is proposed.

中文翻译：

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混响帐篷中功率测量干扰消除的实用方法

在总辐射功率 (TRP) 测量中，必须消除环境噪声引起的电磁干扰影响。消除通常通过屏蔽来实现。然而，屏蔽可能是不够的，尤其是在混响帐篷中。在这种情况下，需要额外的方法来抑制噪声。提出了实用的方法来抑制混响帐篷中 TRP 测量期间不相关噪声信号的影响。这些方法经验证可消除通信噪声，包括 Wi-Fi、全球移动系统 (GSM) 和 FM 信号。如果噪声参考信号可用，则可以通过比率平均来抑制噪声贡献。当参考信号难以获得时，盲源分离允许从预期信号和噪声的组合中分离出不相关的信号。对于间歇性信号，建议取消阈值。