System and method for estimating a set of parameters for a trans

Details System and method for estimating a set of parameters for a trans System and method for estimating a set of parameters for a trans

1997-05-09

2000-02-15

Chan, Jason

Pulse or digital communications

Receivers

Particular pulse demodulator or detector

375346, 375285, 455 63, H03D 100, H04L 2714

Patent

active

060261307

ABSTRACT:
The present invention comprises a system and method for a GSM receiver to perform channel estimation under the assumption that the analog-to-digital (A/D) converter is free-running. A search process is employed, whereby the known GSM training signal is sampled with a plurality of phases which vary incrementally from zero to a full symbol period. For each phase a sample set (of the training signal) is generated. Furthermore, each sample set is used, together with the received samples, in a cross-correlation procedure to obtain a candidate impulse response vector for the transmission channel. Thus a plurality of candidate impulse response vectors are produced, one of which will be selected to be the optimal representative for the transmission channel. The optimal impulse response vector is selected as follows. Each impulse response vector is convolved with the corresponding sample set, thus producing an estimated output vector. The estimated output vectors are compared with the vector of received samples (from the free-running A/D converter), and the estimated output vector which is closest in the Euclidean (square-norm) sense designates the impulse response vector which is optimal.

REFERENCES:
patent: 4564952 (1986-01-01), Karabinis et al.
patent: 5164961 (1992-11-01), Gudmundson
patent: 5204878 (1993-04-01), Larsson
patent: 5432816 (1995-07-01), Gozzo
patent: 5465276 (1995-11-01), Larsson et al.
patent: 5581580 (1996-12-01), Lindbom et al.

Affiliated with

Also associated with

Rating

System and method for estimating a set of parameters for a trans does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with System and method for estimating a set of parameters for a trans, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and System and method for estimating a set of parameters for a trans will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1911993