Name
Title | ||
|---|---|---|
Blind identification and order estimation of FIR communications channels using cyclic statistics |
Abstract | ||
|---|---|---|
We address the problem of the blind joint identification and order estimation of a non-minimum phase FIR communication channel by exploiting the cyclo-stationarity of the received signal sampled at a rate greater than the symbol rate. We show that the identification can be formulated as a “subspace fitting” problem; this allows for using the subspace distance as a test statistic to detect the correct channel length (among different hypotheses). Moreover, mimicking estimation procedures proposed in the framework of DOA estimation, an asymptotically efficient procedure is proposed which obtains the channel estimate in two steps: the channel estimate obtained in the first step determines optimal weights which are then employed in the second step to refine the channel estimate. The accuracy of the identification is comparable with other methods described in the literature (e.g. the subspace method) while the test for order detection performs quite well also in the presence of channel disparity outperforming commonly used tests based on the eigenvalues of the covariance matrix |
Year | DOI | Venue |
|---|---|---|
1998 | 10.1109/ICASSP.1998.681631 | Acoustics, Speech and Signal Processing, 1998. Proceedings of the 1998 IEEE International Conference |
Keywords | Field | DocType |
identification,matrix algebra,parameter estimation,signal sampling,statistical analysis,telecommunication channels,transient response,DOA estimation,blind identification,channel disparity,channel estimate,channel length,covariance matrix,cyclic statistics,cyclo-stationary received signal,eigenvalues,nonminimum phase FIR communication channel,optimal weights,order detection,order estimation,sampling rate,subspace distance,subspace fitting problem,symbol rate,test statistic | Pattern recognition,Subspace topology,Test statistic,Computer science,Symbol rate,Communication channel,Artificial intelligence,Covariance matrix,Estimation theory,Finite impulse response,Statistics,Eigenvalues and eigenvectors | Conference |
Volume | ISSN | ISBN |
4 | 1520-6149 | 0-7803-4428-6 |
Citations | PageRank | References |
2 | 0.40 | 4 |
Authors | ||
3 | ||
Name | Order | Citations | PageRank |
|---|---|---|---|
| Gianpiero Panci | 1 | 28 | 4.21 |
| Gaetano Scarano | 2 | 209 | 31.32 |
| G. Jacovitti | 3 | 271 | 38.08 |