Blind estimation of direct sequence spread spectrum signals in multipath
In: IEEE transactions on signal processing, Jg. 45 (1997), Heft 5, S. 1241-1252
Online
academicJournal
- print, 28 ref
Zugriff:
Self-recovering receivers for direct-sequence spread-spectrum signals with unknown spreading codes are discussed in this paper. Applications include signal interception, jamming, and low probability of intercept (LPI) communications. A mul-tirate/multichannel, discrete-time model of the spread spectrum signal is introduced, which establishes links with array processing techniques. Borrowing blind channel estimation ideas, which were originally developed in the context of fractionally spaced equalizers or receivers with multiple antennas, linear solutions are obtained that are independent of the input distribution. The signal interception problem is further studied, and a zero-forcing (ZF) receiver/equalizer is proposed to recover the transmitted data. Its performance is analyzed, and some illustrative simulations are presented.
Titel: |
Blind estimation of direct sequence spread spectrum signals in multipath
|
---|---|
Autor/in / Beteiligte Person: | TSATSANIS, M. K ; GIANNAKIS, G. B |
Link: | |
Zeitschrift: | IEEE transactions on signal processing, Jg. 45 (1997), Heft 5, S. 1241-1252 |
Veröffentlichung: | New York, NY: Institute of Electrical and Electronics Engineers, 1997 |
Medientyp: | academicJournal |
Umfang: | print, 28 ref |
ISSN: | 1053-587X (print) |
Schlagwort: |
|
Sonstiges: |
|