Correlated signal processor

Details Correlated signal processor Correlated signal processor

1983-06-13

1986-01-28

Griffin, Robert L.

Pulse or digital communications

Repeaters

Testing

375 67, 332 16R, H03K 102, H04L 2720

Patent

active

045676020

ABSTRACT:
A cross-correlated baseband signal processor for providing in-phase and quadrature phase shifted NRZ signals from an input signal, apparatus for cross-correlating the in-phase and quadrature shifted signals, and apparatus for generating in-phase and quadrature shifted intersymbol-interference and jitter free (IJF) modulated output signals having amplitudes such that the vector sum of the output signals is approximately the same at virtually all phase angles of each bit period. The resultant cross-correlated bandlimited PSK signal (XPSK) has an almost constant envelope and thus it can be passed through a saturated amplifier without AM/PM and AM/AM degradation and without the need for post-amplification filtering, as there is no spectral restoration (regrowth).

REFERENCES:
patent: 3518680 (1970-06-01), McAuliffe
patent: 3731233 (1973-05-01), Hutchinson
patent: 4324001 (1982-04-01), Rhodes
patent: 4338579 (1982-07-01), Rhodes
Volertas, "Phase Modulation Techniques for Digital Communication Systems", Published International Telecommunication Conference Proceedings, Oct. 9, 1977.

Affiliated with

Also associated with

Rating

Correlated signal processor does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Correlated signal processor, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Correlated signal processor will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1310583