Blind Estimation of the Combination Code Sequence and Information Sequence for TDDM-BOC Signal

CHEN Changchuan; ZHOU Yang; ZHANG Tianqi

doi:10.11999/JEIT160042

Volume 38 Issue 11

Dec. 2016

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Article Navigation > Journal of Electronics & Information Technology > 2016 > 38(11): 2760-2766

CHEN Changchuan, ZHOU Yang, ZHANG Tianqi. Blind Estimation of the Combination Code Sequence and Information Sequence for TDDM-BOC Signal[J]. Journal of Electronics & Information Technology, 2016, 38(11): 2760-2766. doi: 10.11999/JEIT160042

Citation:

CHEN Changchuan, ZHOU Yang, ZHANG Tianqi. Blind Estimation of the Combination Code Sequence and Information Sequence for TDDM-BOC Signal[J]. Journal of Electronics & Information Technology, 2016, 38(11): 2760-2766. doi: 10.11999/JEIT160042

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Blind Estimation of the Combination Code Sequence and Information Sequence for TDDM-BOC Signal

doi: 10.11999/JEIT160042

Funds:

The National Natural Science Foundation of China (61371164, 61275099, 61102131, 61071196), Graduate Research and Innovation Projects of Chongqing (CYS14140), Key Project of Graduate Education Innovation Program of Chongqing University of Posts and Telecommunications (Y201001)

Received Date: 2016-01-13
Rev Recd Date: 2016-06-08
Publish Date: 2016-11-19

Abstract

Abstract

For the problem of Time Division Data Modulation-Binary Offset Carrier (TDDM-BOC) modulation signal under low Signal-to-Noise Ratio (SNR), including blind estimation of the combination code sequence and information sequence, a revised method using Singular Value Decomposition (SVD) is proposed. Firstly, the received signal is divided into double-symbol-period-length temporal vectors, with one-symbol-period overlapping, accumulates of these vectors one by one to form the signal matrix. Then, an operation of SVD may be applied to the observation matrix, and the estimation of the combination code sequence is obtained based on the left singular vector. At the same time the information sequence can be estimated through the right singular vector. The simulation results show that the proposed method has accurate estimation performance for the signal at the low SNR. It has a certain reference value for engaging in satellite navigation receiver design.

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References(23)

References

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