Method and system for switching and detecting PN codes for...

Details Method and system for switching and detecting PN codes for... Method and system for switching and detecting PN codes for...

2007-12-25

2007-12-25

Tran, Khai (Department: 2611)

Pulse or digital communications

Spread spectrum

Direct sequence

Reexamination Certificate

active

10675184

ABSTRACT:
A method and system is disclosed for generating and detecting variable sequence PN codes. PN-Code sequence changes based on varying interceptor threat levels are generated at a rate fast enough to avoid exploitation while maintaining a reasonable correlation search window. The PN code sequence is phase shifted by N-chips based on the severity of the threat environment. A synchronized receiver demodulates the PN encoded signal by correlating over every possible phase of the PN code sequence. The receiver includes first and second correlators and threshold detectors adapted to detect PN signals with varying PN code sequence changes.

REFERENCES:
patent: 4928310 (1990-05-01), Goutzoulis et al.
patent: 5303258 (1994-04-01), Nakamura
patent: 5519736 (1996-05-01), Ishida
patent: 5805635 (1998-09-01), Andrews, Jr. et al.
patent: 5960029 (1999-09-01), Kim et al.
patent: 6005889 (1999-12-01), Chung et al.
patent: 6132306 (2000-10-01), Trompower

Affiliated with

Also associated with

Rating

Method and system for switching and detecting PN codes for... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method and system for switching and detecting PN codes for..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and system for switching and detecting PN codes for... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3887525