| 摘要 |
A method and apparatus of mitigating multipath coupling interference in a wireless repeater system 10 includes measuring an error signal E(z) in a signal path 14, 15 of the repeater 10 which contains the desired communication signals 15, 19a and the multipath coupling interference 25 and determining a cepstrum c ee [n] of the error signal E(z), wherein the cepstrum c ee [n] is reflective of the open-loop gain G(z) of the system 10. The method further includes extracting the impulse response of the open-loop gain G(z) from the cepstrum c ee [n] of the error signal E(z), calculating a plurality of cancellation filter coefficients using the extracted impulse response, and adaptively applying the plurality of filter coefficients to an adjustable filter to generate the cancellation signal necessary to mitigate the multipath coupling interference 25. |
