最终达到消除PWM信号中的开关信号和电磁干扰信号，提高效率和保真度，减小输出滤波器的体积和成本。

Filter may serve the role to eliminate switching and EMI interfere in PWM signal. Thus to improve efficiency and fidelity, lower the filter cost and component sizes.

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这位官员称，这架飞机也应该能够探测到敌方部署的电磁干扰，拦截他们的通信信号。

The aircraft should also be able to detect the counter-measures employed by enemies and intercept their communication signals, the official said.

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在信号源附近的电磁影响是最严重的，所以尽量少接触诸如电脑、电视、微波炉、电冰箱等设备能够有效减少电磁干扰的影响。

The effect is strongest closest to the source, so literally stepping back from major in-home sources like the computer, TV, microwave and fridge can help minimize exposure.

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