METHOD AND APPARATUS FOR LOCATING CHANNELS AND ESTIMATING CHANNEL BAUD RATES

摘要

For determining a channel frequency estimate and/or a baud rate estimate, the system derives, by a frequency transform (113, 201), a spectral representation from data representing an incoming radio frequency spectrum; it is further adapted to smooth (202, 203) the spectral representation; to derive from the smoothed spectral representation, coarse band edge positions using a threshold detector (109); and to derive from the coarse band edge positions, refined band edge positions employing slope detection (110) and bandedge correlation (107) steps.