Method of frequency and phase offset estimation using least...

Details Method of frequency and phase offset estimation using least... Method of frequency and phase offset estimation using least...

2007-08-14

2007-08-14

Kim, Kevin (Department: 2611)

Pulse or digital communications

Receivers

Automatic frequency control

C375S140000

Reexamination Certificate

active

10438400

ABSTRACT:
A method provides frequency and phase offset estimation in a SCDMA burst receiver (such as a DOCSIS 2.0 SCDMA burst receiver) by application of the known Least Square (LS) parameter estimation algorithm to a pre-known transmitted sequence, called preamble, in order to optimally characterize the phase and frequency offsets affecting the transmitted data. The LS parameter estimation algorithm is adapted to SCDMA burst receiver specifications by changing index calculations to fit according to SCDMA preamble locations. Improved estimation accuracy can be achieved by using weighted least squares that disregard symbols affected by impulse and burst noise. Weighted least squares can further impart more weight to last symbols to more accurately estimate contemporary impairments. The method is particularly useful for communication systems having large frequency and phase offsets as in the DOCSIS 2.0 SCDMA burst receiver.

REFERENCES:
patent: 6566922 (2003-05-01), Schell et al.

Affiliated with

Also associated with

Rating

Method of frequency and phase offset estimation using least... 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 of frequency and phase offset estimation using least..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of frequency and phase offset estimation using least... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3845574