Open AccessResearch on Weak Signal Line Spectrum Enhancement Algorithm Based on Correlation Detection
Author(s) -
Chengshun Huang,
Chenglin Zhao
Publication year - 2021
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1820/1/012020
Subject(s) - integrator , signal (programming language) , correlation , spectrum (functional analysis) , algorithm , line (geometry) , detection theory , mathematics , computer science , physics , telecommunications , detector , bandwidth (computing) , geometry , quantum mechanics , programming language
The correlation detection and adaptive line spectrum enhancement(ALE) algorithm in weak signal detection is presented. Aiming at the problem that the traditional ALE has no obvious effect of line spectrum enhancement at low signal-to-noise ratio(SNR), we propose a modified ALE algorithm based on coherent integrator. Combining this ALE and sliding window correlation, the effect of ALE is clearly improved. The simulation results show that the weak signal receiving ability can be improved by 8 dB under the same line spectrum condition.