Crest clipping method and equipment for multiband broadband signal
A broadband signal, multi-band technology, applied in the field of communication, to achieve the effect of ensuring linearity and efficiency
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[0036]As mentioned in the background art, the existing technical solutions using independent power amplifiers have the defects of large volume, low efficiency and high cost. For the technical solutions that base station equipment uses broadband power amplifiers in a single channel and supports signals in multiple frequency bands at the same time, although The above problems can be solved, but there will be a problem that the peak-to-average ratio after DAC processing cannot be guaranteed under the condition of ensuring the peak-to-average ratio of the DAC inlet, which affects the specific application effect and the technical standards of the actual implementation process.
[0037] In order to overcome such a defect, an embodiment of the present invention proposes a method for peak clipping of a multi-band wideband signal. By predicting the peak value of the multi-band wideband signal after DAC processing in advance, the signal in the corresponding frequency band is pre- clipped ...
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