| 摘要 |
<p>An apparatus and method for first creating and then processing a set of spectral images that allows for recovery of a wide bandwidth signal in a multi-channel satellite receiver (108) while utilizing a low performance ADC (46, 48). More specifically, received analog signals are mixed (36, 38, 40) with a mixing signal to generate a first set of analog signals (i.e., a first spectral image) and a second set of analog signals (i.e., a second spectral image). The received analog signals are within a range of frequencies with each received analog signal having a different frequency and containing a datastream or channel. The mixing signal has a frequency that is within the range of frequencies and that is not equal to the frequency of each received signal. The mixed signals are then converted or digitized using a low performance ADC (46, 48) and the converted signals are processed (50) so a desired channel or datastream is extracted.</p> |
