Spread spectrum signal multiplexing system employing chirp signa

Details Spread spectrum signal multiplexing system employing chirp signa Spread spectrum signal multiplexing system employing chirp signa

1997-10-20

2000-04-11

Le, Amanda T.

Pulse or digital communications

Repeaters

Testing

375206, H04K 100

Patent

active

060495634

ABSTRACT:
Multiplexing of signals with an application of a spread spectrum signal multiplexing system employing chirp signals is disclosed. A plurality of transmission signals are respectively time-shifted and synthesized. Then the synthesized signal is convoluted by a chirp signal from a chirp filter so as to generate a transmission signal. At a demodulation section, the multiplexed signal is time-divided due to being passed through an inverse-chirp filter. Then multipath distortion at a transmission channel is eliminated by a decision feed-back equalizer. From multiplexed signal from which the distortion is to be removed each of the signals is extracted respectively different timing data for each signal so as to output the signals as received data.

REFERENCES:
patent: 4748639 (1988-05-01), Feggeler
patent: 5113278 (1992-05-01), Degura et al.

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