动态不确定性条件下基于混杂约束满足问题的水下移动传感器网络节点自定位方法研究

项目名称： 动态不确定性条件下基于混杂约束满足问题的水下移动传感器网络节点自定位方法研究

项目编号： No.61501488

项目类型： 青年科学基金项目

立项/批准年度： 2016

项目学科： 无线电电子学、电信技术

项目作者： 任永吉

作者单位： 中国人民解放军海军航空大学

项目金额： 23万元

中文摘要： 当前，海洋环境监测和海洋权益维护对水下移动传感器网络技术提出了重大需求。节点自定位是水下移动传感器网络的关键支撑技术，准确可信的节点位置信息是水下移动传感器网络应用的重要前提。但在动态不确定性海洋环境中，自定位过程会受到节点连续不定漂移、未确知多源噪声干扰、潜在的恶意攻击、非均等时滞等因素影响，导致节点自定位错误、定位精度或可信度达不到要求、甚至无法完成自定位。为此，项目研究一套基于混杂约束满足问题的节点自定位方法，通过参考节点及参考信息安全辨识、未确知多源噪声在线认知与自适应处理、定位参考信息交互可靠性控制、动态节点自适应定位及位置求精，系统解决参考节点安全性约束、参考信息准确度约束、信息交互可靠性约束、动态节点几何空间约束等混杂约束条件对定位性能的耦合影响，实现水下移动传感器网络安全、有效和高精度定位。研究成果将进一步丰富水下传感器网络定位理论，有助于水下移动传感器网络的进一步实用化。

中文关键词： 水下移动传感器网络；节点定位；动态不确定性；约束满足问题

英文摘要： Mobile underwater sensor networks as new technologies have attracted a rapidly growing interest from ocean environment surveillance and rights and interests maintenance. Being an essential technology of the mobile underwater sensor networks, localization is very important to the location-based applications and network protocols. However, the localization process will no doubt constantly encounter several kinds of uncertainty, which lead to obvious degradation of localization accuracy, e.g. the unknown noises, the non-ideal network conditions, possible attacks, etc. The most important reason is that the localization performance has been restricted by multiple hybrid constraints. To solve this problem, we will explore a novel hybrid constraint satisfaction problems (CSPs) based localization method that can be applied to dynamic uncertainty conditions. This project includes identification of various reference information and insecure network conditions, optimal decision-making of anisotropy network information information interaction, adaptive process of multi-source errors and mobile localization, CSPs-based coordinate refinement and accuracy evaluation, etc. The research objective of this project is to seek a novel localization scheme with strong practicability and high accuracy and reliability. The project enriches the node self-localization theory, and further promotes the location-based application of mobile underwater sensor networks.

英文关键词： mobile underwater sensor networks;node localization;dynamic uncertainty;constraint satisfaction problems