| 摘要 |
A diversity receiver and methods of diversity combining are described herein. Diversity combining can be implemented in the front-end signal path of a receiver, without the need to digitally demodulate the baseband signals. Each diversity path is downconverted using a common LO. A portion of each downconverted diversity path is filtered and coupled to an input of a correlator. The diversity paths are paired for the purposes of correlation. The output of the correlator is used to adjust the phase of one of the diversity paths. The amplitude of each diversity path can be equalized or can be adjusted based on a signal metric. The phase adjusted diversity signals can be summed in a signal combiner. The summed signal can be processed as a single receive signal using a single filter and baseband processor.
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