Method for interchanging n partial bands

Details Method for interchanging n partial bands Method for interchanging n partial bands

H - Electricity

04

K

325/3

H04K 1/04 (2006.01) H04J 1/05 (2006.01)

Patent

CA 1188383

ABSTRACT OF THE DISCLOSURE A method for interchanging the frequency positions of n partial bands, each having a bandwidth b, of a signal frequency band, by the steps of: sampling signals in the frequency band at an input sampling rate; separating the sampled signals associated with each partial band into separate channels in stages in each of which sample signals are separated into high frequency and low frequency groups and the sampling rate is reduced; altering the posi- tions of the channels in a scrambling matrix controlled by a random sequence generator; and spectrally recombining the signals in the separate channels into a signal extending across the signal frequency band.

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