Timing Recovery and Carrier Synchronization Using LDPC Codes: Using Soft Decision Feedback to Aid Timing and Carrier Recovery
 |
|
Описание:
This book provides techniques for symbol tracking andcarrier acquisition in a Low-Density Parity-Check(LDPC) coded transmission. In traditional receiverarchitectures, acquisition and tracking are performedusing phase-lock techniques that are independent ofthe channel-code decoding process. In burst receptionscenarios, bandwidth inefficientpiloting must often be embedded in a transmission inorder to accelerate acquisition to aid symbol timetracking at low signal-to-noise ratios. In this bookwe show that outputs from an iterative decoder can beused to improve the estimation of symbol frequencyand phase in either a pilotless environment orcomplementing available pilot information. Wedescribe a method capable of handling very largeoffsets with complexity that grows linearly with themaximum offset size. Combining information from theset of parity-check equations of a LDPC codeobservations with a properlycalibrated phase locked loop allows successfultracking in very high noise scenarios....Похожие книги
 | Little Words: Their History, Phonology, Syntax, Semantics, Pragmatics, and Acquisition (Georgetown University Round Table on Languages and Linguistics (Proceedings)) Автор: Ronald P. Leow, Hector Campos, Donna Lardiere Год: 2009 |
 | Incidental Acquisition of L2 Word Knowledge via Graded Readers Автор: Andrew Hung Год: 2010 |
 | Constraints in Phonological Acquisition Автор: Kager Год: 2009 |
| Tense and Aspect in Second Language Acquisition– Form, Meaning, and Use Автор: Kathleen Bardovi–Harlig Год: 2000 |
 | An Invitation to Cognitive Science, Vol. 1: Language Автор: Lila R. Gleitman, Mark Liberman Год: 1995 |