Title:
AN IMPROVED THRESHOLD EXTENSION BLOCK PHASE ESTIMATOR FOR QUASI-COHERENT COMMUNICATIONS SYSTEMS
Document Type and Number:
WIPO Patent Application WO1999014875
Kind Code:
A9
Abstract:
The invention relates to a threshold extension block phase estimator (TEBPE) (fig. 1) which gives improved performance over existing BPE algorithms in the presence of noise. Specifically, the threshold and sector slip performance is superior to that of previously disclosed algorithms. This can be of crucial advantage in coded systems. Another attribute of the TEBPE is it can be configured as a hybrid feedback loop incorporating characteristics of both the BPE and the PLL. This gives a high degree of flexibility with very fast acquisition times at high signal-to-noise ratio (SNR), and improved threshold performance at low SNR.
Inventors:
OHLSON JOHN
Application Number:
PCT/US1998/018175
Publication Date:
November 17, 2005
Filing Date:
September 14, 1998
Export Citation:
Assignee:
STANFORD TELECOMM INC (US)
International Classes:
H04L27/00; H04L27/22; (IPC1-7): H04B15/00; H04L7/00; H04L27/20
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