| 摘要 |
A method and apparatus of processing multiple adjacent radio frequency (RF) channels simultaneously are disclosed. The apparatus includes an analog front end, a local oscillator (LO), a mixer, a filter, an analog-to-digital converter (ADC) and a Hilbert transformer. Received RF signals including a plurality of channels adjacent to each other in frequency are processed by the analog front end. The received RF signals are mixed with the LO signals by the mixer to generate down-converted signals. A frequency of the LO signals is tuned such that at least two channels in the down-converted signals overlap each other. The down-converted signals are filtered and digitized by the ADC. The digitized signals are then processed by the Hilbert transformer for recovering signals on each of the RF channels.
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