A CPM-DSSS Based Low Complexity Carrier Phase and Symbol Timing Offset Joint Estimator

Yueyan Zhao, Kezhen Song, Wanyang Jin, Changhao Du*

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Continuous Phase Modulation-Direct Sequence Spread Spectrum (CPM-DSSS) is a promising technique with the advantages of constant envelope, high spectral efficiency and anti-jamming. The demodulation of CPM-DSSS requires precise synchronisation of carrier phase and symbol timing offset at the receiver side. However, the existing synchronization methods have the problem of high computational complexity. In this work, a low-complexity joint estimator of carrier phase and symbol timing offset based on CPM-DSSS and PAM decomposition is proposed. By performing PAM decomposition on the CPM-DSSS signal and optimising the estimation algorithm with energy weights of each pulse, the computational complexity is reduced by 90 %. Simulation analysis shows that the proposed estimator can achieve the same estimation performance as the ML algorithm with low operational complexity.

Original languageEnglish
Title of host publicationIEEE 6th Information Technology and Mechatronics Engineering Conference, ITOEC 2022
EditorsBing Xu, Kefen Mou
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages2078-2081
Number of pages4
ISBN (Electronic)9781665431859
DOIs
Publication statusPublished - 2022
Event6th IEEE Information Technology and Mechatronics Engineering Conference, ITOEC 2022 - Chongqing, China
Duration: 4 Mar 20226 Mar 2022

Publication series

NameIEEE 6th Information Technology and Mechatronics Engineering Conference, ITOEC 2022

Conference

Conference6th IEEE Information Technology and Mechatronics Engineering Conference, ITOEC 2022
Country/TerritoryChina
CityChongqing
Period4/03/226/03/22

Keywords

  • CPM
  • DSSS
  • PAM Decomposition
  • Symbol Timing and Carrier Phase Offset Joint Estimate

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