矢量跟踪已成为导航终端信号处理算法的研究热点。矢量环在GPS领域的应用实例很多，但深层次性能评估尤其是稳定性却鲜有研究。本项目立足于COMPASS特殊性和信号监测评估的需要，研究多源矢量信息条件下的COMPASS观测量提取和信号质量评估，拟利用矢量环的性能优势提高信号监测水平。 拟首先突破经典的数据融合层次界限，建立一个新颖而可靠实用的深层次数据融合框架；针对COMPASS系统的特点，改变单一的信号强度评价方法，建立一个全面系统的信号质量评价准则；在此基础上，从环路响应、稳态误差等理论层面解释矢量环的优劣性并加以验证。针对COMPASS混合星座引起的多径现象和COMPASS/INS组合的特殊需求，定量分析多径对Doppler测量的影响；最后针对误差在矢量融合过程中易扩散的问题，设计矢量跟踪结构下的完好性检测算法；通过矢量融合的方式为复杂环境下COMPASS系统监测与信号质量评估提供新方法。

Vector tracking mode has been the research hot spot of signal processing algorithm on navigation user terminal.Vector loop has large scale application on the many fields of GPS, but the deeper research on the performance evaluation has not been done especially for the stability.Aimed at the need of Compass signal monitoring and evaluation,the project will focus on the observation extraction and quality evaluation with the fusion of multi-sources vector information.The signal monitoring level will be improved by performance priority of vectro loop. Firstly, the classical limit on data fusion levels will be broken through, whereas a robust and practial frame combining tight and deep coupling will be established.For the characteristic of Compass system, the signal quality evalution frame based on not only the traditional CNR (Carrier to noise ratio) but also a new complete and systemic criteria will be proposed.On the basis, the merit and defection of vector performance will be analysed and validated by the theory of loop response and steady error. Next,taking the multipath characteristics caused by hybrid Compass constellation and the special needs of the integration into account, the impacts of multipath on Doppler measurements will be quantitatively analyzed. Finally, the integrity algorithm for the vector tracking architecture will be designed to solve the problem of error spread in vector data fusion. The study provides new methods for the system monitoring and signal quality evaluation using Compass/INS vector data fusion.