﻿ 基于无线网络的舰船实时导航数据采集与传输研究
 舰船科学技术  2022, Vol. 44 Issue (23): 153-156    DOI: 10.3404/j.issn.1672-7649.2022.23.031 PDF

1. 广西船联网工程技术研究中心，广西 南宁 530007;
2. 广西感知物联网生产力促进中心，广西 南宁 530007

Research on real-time navigation data acquisition and transmission of ships based on wireless network
XIONG Zhi-wen1,2
1. Guangxi Ship Networking Engineering Technology Research Center, Nanning 530007, China;
2. Guangxi Perceived Internet of Things Productivity Promotion Center, Nanning 530007, China
Key words: wireless network     a ship     real-time navigation data     acquisition and transmission     compressed sensing     reception of data
0 引　言

1 舰船实时导航数据采集与传输 1.1 多类型舰船实时导航数据采集

1.2 舰船实时导航数据传输的无线网络

 图 1 舰船实时导航数据传输过程 Fig. 1 Real-time navigation data transmission process of ships
1.3 基于压缩感知算法的舰船实时导航数据重构

 $x = \sum\limits_{i = 1}^N {{s_i}} {\eta _i}。$ (1)

 $y = \varGamma x$ (2)

 $y = \varGamma \eta s，$ (3)

 $\left( {1 - \xi } \right)\left\| s \right\|_2^2 \leqslant \left\| {\Gamma \eta s} \right\|_2^2 \leqslant \left( {1 + \xi } \right)\left\| s \right\|_2^2，$ (4)

$\xi < 1$ 时，矩阵 $\Theta$ 满足 $K$ 阶有限等距条件。

 $\left\{ {\begin{array}{*{20}{l}} {\mathop {\min }\limits_{s \in {\Re ^N}} {{\left\| s \right\|}_{{l_1}}}} ，\\ {{\rm{s.t.}}\quad y = \varGamma x，x = \eta s} 。\end{array}} \right.$ (5)

2 实例分析

 图 2 舰船首向角采集界面图 Fig. 2 Interface diagram of vessel heading angle acquisition

3 结　语

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