Digital array real-time signal processing algorithms in ship communication system
CHEN Ling;Department of Communication Engineering, Chongqing College of Electronic Engineering;
The ability of digital array signal processing and modulation in ship communication system is directly related to the safety of ship running. To overcome the shortcomings of traditional digital signal processing algorithms such as poor anti-noise interference ability and high signal processing error, a digital array signal processing algorithm based on orthogonal demodulation is proposed. Orthogonal decomposition method is used to decompose the original noisy signal into transverse digital array signal and longitudinal digital array signal. Then the array signal is filtered, matched and denoised separately, which can eliminate most of the interference of environmental noise while preserving the key information. The simulation results show that the proposed algorithm has more advantages in peak signal-to-noise ratio(PSNR) of signal processing, and is superior to the traditional algorithm in signal processing delay and control error.
【CateGory Index】： U665.2