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Feedback-controlled biased inverting limiter for RFI suppression
Feedback-controlled biased inverting limiter for RFI suppression
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机译:反馈控制的偏置反相限幅器,用于抑制RFI
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摘要
A method and apparatus is provided for reducing interference in a communication system. A feedback-controlled biased inverting limiter is used to reduce interference power by trapping the interfering signal, while passing the wanted signal through to the output. The amplitude trap triples the frequency of a signal component of a particular amplitude, thus shifting it out of the communication band and into the stopband of the receiver or transponder filter. The feedback-controlled biased inverting limiter uses a hard limiter, window comparator, feedback loop, and an exclusive NOR gate to trap the interfering signal, while allowing the wanted signal to pass through to a receiver.
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