The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 31, 2024
Filed:
Dec. 15, 2022
Dalian Maritime University, Dalian, CN;
Qing Hu, Dalian, CN;
Yuanyuan Hu, Dalian, CN;
Dalian Maritime University, Dalian, CN;
Abstract
An improved carrier frequency offset synchronization method for the VDE-TER system includes matching and filtering the data at a receiver of the system, extracting a training sequence from an information data segment after matching and filtering; performing a carrier frequency offset estimation based on the training sequence to obtain a frequency offset estimated value; based on the frequency offset estimated value, performing a frequency offset compensation on the information data segment to obtain a first-level compensation data segment; performing a phase tracking on the first-level compensation data segment to obtain a cumulative phase compensation value, thereby obtaining a second-level compensation data segment; and demodulating the second-level compensation data segment to obtain the received information after synchronization. The method is based on a double Barker code training sequence, which reduces the bit error rate and optimizes the synchronization performance of the system under the condition of low-frequency offset.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile