TY - GEN
T1 - Multiresolutive acquisition technique for DS-SS long-haul HF data link
AU - Pages, Rosa Ma Alsina
AU - Carames, Pau Bergada
AU - Carrié, Joan Claudi Socoró
AU - Herraiz, Marc Deumal
PY - 2009
Y1 - 2009
N2 - In this paper a study of the multiresolutive acquisition and tracking structure proposed in [8] for a multipath and time variant long ionospheric channel is presented. The multiresolutive structure is adaptive-based, using LMS algorithms over the received signal at chip rate sampling, and converges to the correct acquisition point using a decimated version of the pseudonoise sequence as a reference, achieving a reduction of the computational load of the digital receiver. It uses the Gold pseudonoise sequences family regarding its good crosscorrelation vs. autocorrelation balance properties as in future work a multiuser transmission will be tested. Pseudonoise sequence phase tracking is also solved using the multiresolutive structure, so the estimation of the acquisition point is given by the structure. The results in this paper are given over real data from a 12700km length link from the Antarctica to Spain, transmitted on January and February 2008.
AB - In this paper a study of the multiresolutive acquisition and tracking structure proposed in [8] for a multipath and time variant long ionospheric channel is presented. The multiresolutive structure is adaptive-based, using LMS algorithms over the received signal at chip rate sampling, and converges to the correct acquisition point using a decimated version of the pseudonoise sequence as a reference, achieving a reduction of the computational load of the digital receiver. It uses the Gold pseudonoise sequences family regarding its good crosscorrelation vs. autocorrelation balance properties as in future work a multiuser transmission will be tested. Pseudonoise sequence phase tracking is also solved using the multiresolutive structure, so the estimation of the acquisition point is given by the structure. The results in this paper are given over real data from a 12700km length link from the Antarctica to Spain, transmitted on January and February 2008.
KW - Acquisition
KW - HF
KW - Ionospheric
KW - LMS filter
KW - Spread spectrum
UR - http://www.scopus.com/inward/record.url?scp=79953020045&partnerID=8YFLogxK
U2 - 10.1049/cp.2009.0075
DO - 10.1049/cp.2009.0075
M3 - Conference contribution
AN - SCOPUS:79953020045
SN - 9781849191234
T3 - IET Conference Publications
SP - 259
EP - 263
BT - IET 11th International Conference on Ionospheric Radio Systems and Techniques, IRST 2009
T2 - IET 11th International Conference on Ionospheric Radio Systems and Techniques, IRST 2009
Y2 - 28 April 2009 through 30 April 2009
ER -