科技创新导报
科技創新導報
과기창신도보
Science and Technology Innovation Herald
2015年
26期
52-53
,共2页
电力通信%小波降噪%微弱信号提取%解调信噪比
電力通信%小波降譟%微弱信號提取%解調信譟比
전력통신%소파강조%미약신호제취%해조신조비
Offshore Communication%Wavelet De-Noising%Weak Signal Extraction%Demodulation SNR
海上油田通信网在特有的高电压、强电磁场环境下运行,受到各种外部干扰比较大,电磁频谱背景噪声严重,影响无线通信的解调性能.将小波降噪技术引入到电力无线通信系统,可对信号进行降噪处理,在强噪声背景下提取微弱信号特征,显著提升解调信噪比和信号相关度,降低相位失真度和误码率,改善电力微波通信性能.计算机仿真和分析验证了该算法的有效性.
海上油田通信網在特有的高電壓、彊電磁場環境下運行,受到各種外部榦擾比較大,電磁頻譜揹景譟聲嚴重,影響無線通信的解調性能.將小波降譟技術引入到電力無線通信繫統,可對信號進行降譟處理,在彊譟聲揹景下提取微弱信號特徵,顯著提升解調信譟比和信號相關度,降低相位失真度和誤碼率,改善電力微波通信性能.計算機倣真和分析驗證瞭該算法的有效性.
해상유전통신망재특유적고전압、강전자장배경하운행,수도각충외부간우비교대,전자빈보배경조성엄중,영향무선통신적해조성능.장소파강조기술인입도전력무선통신계통,가대신호진행강조처리,재강조성배경하제취미약신호특정,현저제승해조신조비화신호상관도,강저상위실진도화오마솔,개선전력미파통신성능.계산궤방진화분석험증료해산법적유효성.
Offshore communication net system works in its special high voltage and strong electromagnetic field,seriously affected by various kinds of external interference,the background noise of EM spectrum behaves critical,which obviously weakens wireless communication demodulation performance.In this paper,the wavelet de-noising algorithm is introduced into Offshore wireless communication system,extract weak signal characteristics on the background of strong EM noise,substantially enhance the demodulation SNR and signal relevance,reduce phase distortion and bit error rate,improve power wireless communication performance.The effectiveness of the algorithm is verified by computer simulation and analysis.
