Name
Abstract | ||
|---|---|---|
The time difference localization suffers from the performance deterioration of time delay estimation (TDE) due to the presence of clock frequency error in incoherent systems. Based on the modified signal model of TDE, the joint maximum-likelihood (ML) estimation of time delay and system clock frequency error is proposed. Then, the Cramér-Rao lower bounds (CRLBs) of time delay and clock frequency error estimations are given. The performance of time delay estimation may be significantly improved to approach CRLB by proposed method. Further, the accuracy of proposed time delay estimator is unaffected by performance of system clock in moderate condition, that is verified by simulation results. |
Year | DOI | Venue |
|---|---|---|
2014 | 10.1109/ICASSP.2014.6854146 | ICASSP |
Keywords | Field | DocType |
cramér-rao lower bounds,ml estimation,signal processing,local oscillator (lo),joint maximum-likelihood estimation,maximum likelihood estimation,time difference of arrival (tdoa),system clock frequency error estimation,performance deterioration,clocks,modified signal model,system clock performance,crlbs,time delay estimation (tde),time difference localization,tde,time delay estimation,delay estimation,time frequency analysis,estimation | Cramér–Rao bound,Phase error,Pattern recognition,Computer science,Algorithm,Real-time computing,System time,Artificial intelligence,Time difference,Clock rate,Estimator | Conference |
ISSN | Citations | PageRank |
1520-6149 | 4 | 0.50 |
References | Authors | |
7 | 5 | |