논문 해외 국제전문학술지(SCI급) Synchronization of Frequency Hopping by LSTM Network for Satellite Communication System
- 학술지 구분 국제전문학술지(SCI급)
- 게재년월 2019-08
- 저자명 Sangkeum Lee(이상금), Suil Kim(김수일), Minah Seo(서민아), Dongsoo Har(하동수)
- 학술지명 IEEE Communications Letters
- 발행국가 해외
- 전체저자수 4
- 원문 링크 https://doi.org/10.1109/LCOMM.2019.2936019
홈페이지논문 초록 (Abstract)
In this letter, a novel method for synchronization of frequency hopping signal is proposed for tactical satellite communication system. Proposed method consists of serial search for coarse acquisition and use of long short-term memory (LSTM) network for fine acquisition. During training, the LSTM network is able to learn trend of energy signal used for fine acquisition. As a result, it can perform quick and robust fine acquisition in the presence of noise. Validation of proposed method is conducted by simulations. Simulation results show that the proposed method leads to decreased time for synchronization and improved timing estimation performance, as compared to other methods.