Satellite Navigation Signal Processing Technology Based on the Integration of Communication and Navigation

This article delves deeply into the research of satellite navigation signal processing technology based on the integration of communication and navigation functions. As an innovative satellite communication technology, the integrated communication and navigation system deeply integrates satellite navigation and satellite communication functions, providing users with high-precision positioning and efficient communication services. This study fully leverages the advantages of low-Earth orbit (LEO) satellites, achieving continuous coverage and efficient services across a vast geographic area by fusing broadcast communication signals with navigation signals. To address the issues of different frequencies for communication and navigation signals and the multiplexing of multiple signal components, this article proposes an innovative scheme based on phase-optimized constant envelope transmission technology, which realizes the constant envelope multiplexing of multiple frequencies and signal components, effectively integrating communication and navigation functions. The article elaborates on the principles of the integrated communication and navigation system, the design principles of the integrated communication and navigation transmission signals based on LEO, and the signal processing process, including the working principles of GNSS receivers, satellite integrated communication and navigation signal processing methods, and specific implementation flows. Through this study, not only has the efficiency and performance of satellite communication systems been improved, but it also provides theoretical support and practical guidance for the further integration and innovation of satellite navigation and communication technologies in the future. The results of this study are of great significance for advancing the development of satellite navigation and communication fields.