无线网络系统的舰船相对组合导航定位

针对现有单舰船组合导航定位技术存在的不足，如过度依赖GPS、差的可靠性和容错性以及缺乏网络系统概念等，将无线网络系统概念引入到舰船组合导航中，从而基于海上智能交通系统（MITS）提出一种新颖的网络舰船相对组合导航定位方法。该方法不再将海上舰船视为MITS中的孤立节点，因此目标舰船可使用来自网络内其它舰船节点的导航估计并采用最优分布式加权融合来改善自身的组合导航定位估计性能。与现有的单舰船组合导航方法相比，新方法具有更好的导航估训‘精度、更好的稳定性和容错性。

Ship relative integrated navigation and positioning based on wireless

For the shortcomings existing in the current ship integrated navigation positioning methods of single ship such as depending on GPS overly, bade reliability and fault tolerance, and lacking of the concept of network system, a novel ship relative integrated navigation positioning method based on marine intelligent transport system, which is MITS, is proposed by introducing the wireless network system into ship integrated navigation in this paper. This proposed method doesn＇t take the ship in MITS as lone node, so the target ship can use the navigation estimates from other ship nodes in MITS and adopt the optimal distributed weighted fusion in minimizing the trace of estimate error covariance matrix to improve the performance of its integrated navigation positioning estimate. Compared with the integrated navigation algorithm for single ship, the proposed relative navigation method has better navigation accuracy, stability and fault tolerance.