高超声速飞行器超紧耦合自主可靠导航方法研究

项目名称： 高超声速飞行器超紧耦合自主可靠导航方法研究

项目编号： No.61503393

项目类型： 青年科学基金项目

立项/批准年度： 2016

项目学科： 自动化技术、计算机技术

项目作者： 赵欣

作者单位： 中国人民解放军火箭军工程大学

项目金额： 21万元

中文摘要： 高超声速临近空间飞行器高动态、恶劣临近空间飞行环境及飞行器本身复杂的动力学特性使得此类飞行器的自主可靠导航问题成为亟待解决的重大难题之一。对于飞行器自主导航系统的超紧耦合结构设计、卫星信号稳定跟踪与融合估计、在线故障检测与重构等问题，现有的相关研究成果难以适应具有高动态、强干扰、弱测量异常、高故障率等特点的高超声速临近空间飞行器对自主可靠导航的要求。为此，本项目在理论上拟研究：1）高可靠SINS/GPS超紧耦合结构优化设计；2）高动态及强干扰下的SINS辅助GPS信号超紧耦合跟踪方法；3）弱测量异常下的SINS/GPS超紧耦合导航融合滤波方法；4）高故障率下的SINS/GPS超紧耦合导航系统在线故障检测与重构方法。在工程上，构建一体化综合仿真平台，验证所研究方法的有效性。项目研究成果将为高超声速临近空间飞行器导航技术的发展提供理论支持。

中文关键词： 高超声速；超紧耦合；信号跟踪；在线故障诊断；非线性滤波

英文摘要： Near space hypersonic vehicles have high dynamic, harsh flight environment of near space and complex dynamic characterfistics. In such circumstances, the autonomous and reliable navigation for these vehicles has become of one of the major problems to be solved in the current and future development of near space fields..In autonomous navigation system of vehicle, for the issues of ultra-tightly coupled design, stable tracking for satellite signal and fusion estimation, and online fault detection and reconstruction, current studies are difficult to adapt to the autonomous and reliable navigation requirements proposed by near space hypersonic vehicles, which are operating in high dynamic, stong interference, abnormal weak measurement, high failure rate and other environments. To this end, the project intends to study in theory: 1) highly reliable SINS/GPS ultra-tightly coupled structural optimization design; 2) SINS assisted GPS signal tracking method based on ultra-tightly coupled structural under high dynamic and strong interference conditions; 3) SINS/GPS ultra-tightly coupled navigation integration filter in the case of abnormal weak measurement; 4) online fault detection and reconstruction methods for SINS/GPS ultra-tightly coupled navigation system under conditions of high fault rate. In engineering, integrated and comprehensive simulation platform is carried out to validate the developed methods. The results of this project will provide theoretical support for the navigation technilogy development of near space hypersonic vehicles.

英文关键词： hypersonic;ultra-tightly coupled;signal tracking;online fault diagnosis;nonlinear filtering