Method for determining reference phase in radio...

Details Method for determining reference phase in radio... Method for determining reference phase in radio...

2007-12-18

2007-12-18

Pham, Brenda (Department: 2616)

Multiplex communications

Generalized orthogonal or special mathematical techniques

Particular set of orthogonal functions

Reexamination Certificate

active

10143747

ABSTRACT:
Reference phase is a radio communication system using orthogonal M-ary modulation is determined, so that a coherent detection system for a CDMA radio communication system is readily achieved. The determination of reference phase is performed by the step of determining a reference phase in a radio communication system, which uses orthogonal M-ary codes comprising the steps of determining the correlation values of an in-phase component and quadrature component corresponding to respective Hadamard matrices resulting from fast Hadamard transform or inverse Hadamard transform of a signal, which possesses said in-phase component and quadrature component, and which is sent from the sending end by phase shift keying an orthogonal M-ary code computing the sum of the squares of the respective correlation values of said in-phase component and quadrature component and selecting either said fast Hadamard transform or inverse Hadamard transform output, which outputs a maximum value of said computed sum of the squares.

REFERENCES:
patent: 5136612 (1992-08-01), Bi
patent: 5602833 (1997-02-01), Zehavi
patent: 5734647 (1998-03-01), Yoshida et al.
patent: 5920228 (1999-07-01), Soga et al.
patent: 6363103 (2002-03-01), Buehrer et al.
patent: 8-288927 (1996-01-01), None
Performance Evaluation of DS-CDMA System with M-ary Orthogonal Signaling, E. Hong, IEEE 996 vol. 45, No. 1. pp. 57-63.
Iterative Decoding and Despreading Improves CDMA-System using M-ary Orthogonal Modulation and FEC, R. Herzog, IEE 1997, pp. 909-913.

Affiliated with

Also associated with

Rating

Method for determining reference phase in radio... 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 for determining reference phase in radio..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for determining reference phase in radio... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3834674