舰船导航信号容易受到噪声的干扰,因此提出一种基于船岸通信技术的舰船导航信号非线性滤波方法。计算舰船正常运行的状态轨迹参数,构建一阶马尔可夫归一方程,将不同类型的噪声信号组成不同非线性序列,通过离散化处理完成导航信号的去噪处理。构建量测模型,降低导航信号接收偏差。采用船岸通信技术计算序列中噪声信号和普通信号的传输时延,引入协方差矩阵通过矩阵求解信号的时延均值,凭借约束导航信道的时延量实现非线性滤波。实验数据表明,所提方法非线性滤波效果较好,对不同强度的噪声信号均能实现高效稳定滤波。说明本文方法的整体实用价值较高,适用性较强。
Ship navigation signal is easily disturbed by noise, so a nonlinear filtering method of ship navigation signal based on ship shore communication technology is proposed. Calculate the state trajectory parameters of the normal operation of the ship, build a first-order Markov normalization equation, and make different types of noise signals into different nonlinear sequences, and complete the navigation signal denoising through discrete processing. The measurement model is built to reduce the navigation signal reception deviation. The ship shore communication technology is used to calculate the transmission delay of noise signals and ordinary signals in the sequence. The covariance matrix is introduced to solve the mean value of the signal delay through the matrix. The nonlinear filtering is realized by constraining the delay of the navigation channel. The experimental data show that the nonlinear filtering effect of the proposed method is good, and it can achieve efficient and stable filtering for noise signals of different intensity. Therefore, the proposed method has high overall practical value and strong applicability.
2022,44(20): 139-142 收稿日期:2022-04-28
DOI:10.3404/j.issn.1672-7649.2022.20.028
分类号:TN912.3
基金项目:中国交通教育研究会科研课题资助项目(JTYB20-260)
作者简介:王永杰(1988-),男,硕士,讲师,研究方向为船舶通信与导航及无线通信技术
参考文献:
[1] 汪昭河, 黄蕾, 王艳杰, 等. UFMC系统中基于Volterra滤波器的非线性失真补偿方案[J]. 微电子学与计算机, 2020, 37(1): 1–6+13
[2] 陈振炜, 孟义朝, 詹遥牧. 延时可变光电振荡器产生混沌信号的路径及其特性研究[J]. 激光与光电子学进展, 2020, 57(19): 211–220
[3] 王领, 申晓红, 张之琛, 等. 一种适用于水声移动通信同步检测的组合滤波器[J]. 西北工业大学学报, 2020, 38(5): 919–927
[4] 孙青丰, 李大为, 王韬, 等. 基于自相关的纳焦级弱信号10~(11)高动态范围测量[J]. 中国激光, 2020, 47(6): 175–182
[5] 张嘉纹, 党小宇, 杨凌辉, 等. 海面短波地波通信中基于DNN神经网络的单样本极化滤波器预测研究[J]. 电子学报, 2020, 48(11): 2250–2257
[6] 陈霖, 周廷, 刘占超. GNSS失锁下基于混合预测模型的POS误差估计方法[J]. 中国惯性技术学报, 2022, 30(1): 74–80
[7] 李远禄, 赵伟静, 蒋民. 基于时间分数阶非线性扩散模型的平滑方法[J]. 计算机应用研究, 2020, 37(3): 704–707
[8] 刘长德, 顾宇翔, 张进丰. 基于小波滤波和LSTM神经网络的船舶运动极短期预报研究[J]. 船舶力学, 2021, 25(3): 299–310
[9] SPOTTS I, BRODIE C H, GADSDEN S A, et al. Comparison of nonlinear filtering techniques for photonic systems with blackbody radiation[J]. Applied Optics, 2020, 59(30): 9303–9312
[10] 马月红, 张伟涛, 惠蕙, 等. 基于单比特接收机的高检测率测频方法设计与实现[J]. 北京理工大学学报, 2021, 41(7): 774–780
[11] 吴健, 孙永波, 赵前进. 基于神经网络的周期扰动非线性系统自适应渐近跟踪控制[J]. 控制与决策, 2022, 37(4): 922–932
[12] 刘素贞, 魏建, 张闯, 等. 基于FPGA的超声信号自适应滤波与特征提取[J]. 电工技术学报, 2020, 35(13): 2870–2878
[13] 赵修平, 齐嘉兴, 崔伟成, 等. MOMEDA结合数学形态滤波的齿轮故障特征提取[J]. 机械科学与技术, 2020, 39(2): 247–252
[14] 魏志强, 程勇策, 辛林杰, 等. 非线性跟踪微分器在光电吊舱跟踪系统中的应用研究[J]. 电视技术, 2020, 44(4): 39–43