基于卡尔曼滤波的无线传感器网络信息并行传输延迟补偿算法  

A Delay Compensation Algorithm for Parallel Transmission of Information in Wireless Sensor Networks Based on Kalman Filter

作　　者：丁华峰 胡学龙[2] DING Huafeng;HU Xuelong(College of Intelligent Control,Changzhou Vocational Institute of Industry Technology,Changzhou Jiangsu 213164,China;College of Information Engineering,Yangzhou University,Yangzhou Jiangsu 225127,China)

机构地区：[1]常州工业职业技术学院智能控制学院,江苏常州213164 [2]扬州大学信息工程学院,江苏扬州225127

出　　处：《传感技术学报》2024年第10期1814-1819,共6页Chinese Journal of Sensors and Actuators

基　　金：江苏省自然科学基金项目(BK20220241)。

摘　　要：为了提升无线传感器网络信息并行传输延迟补偿性能,提出一种基于卡尔曼滤波的无线传感器网络信息并行传输延迟补偿算法。利用时滞误差补偿控制方法均衡控制无线传感器网络信道,以此为基础,采用小波变换将无线传感器网络信息频谱变换到小波域内。在小波域内采用恒虚警概率方法识别信息并行传输过程中的码间干扰小波系数,组建码间干扰小波系数的恒虚警检测器以去除大于检测门限的码间干扰,完成信息并行传输过程中的码间干扰抑制。为了保证数据传输的时效性,采用卡尔曼滤波方法对无线传感器网络信息并行传输延迟展开补偿。仿真结果表明,所提算法的无线传感器网络信息并行传输到达率均值在98%以上,具有良好的传输延迟补偿效果。In order to improve the performance of parallel transmission delay compensation in wireless sensor networks,a Kalman filter based parallel transmission delay compensation algorithm for wireless sensor networks is proposed.Time delay error compensation control method is used to balance and control the wireless sensor network channel.Based on this,wavelet transform is used to transform the wireless sensor network information spectrum into the wavelet domain.The constant false alarm probability method in the wavelet do main is used to identify the wavelet coefficients of inter symbol interference during parallel information transmission,a constant false alarm detector for inter symbol interference wavelet coefficients is constructed to remove inter symbol interference exceeding the detec tion threshold,and the suppression of inter symbol interference during parallel information transmission is completed.In order to ensure the timeliness of data transmission,the Kalman filtering method is used to compensate for the parallel transmission delay of information in wireless sensor networks.The simulation results show that the average parallel transmission arrival rate of the wireless sensor network information using the proposed algorithm is over 98%,and it has good transmission delay compensation effect.

关 键 词：无线传感器网络 传输延迟补偿 卡尔曼滤波 码间干扰 网络信息并行传输 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]