A.I. Perov - Dr. Sc. (Eng.), Professor, Head of Radio System Department, «National Research University «MPEI» (Moscow). E-mail: alexp@aha.ru A.Yu. Ustinov - Post-graduate Student, Radio System Department, «National Research University «MPEI» (Moscow). E-mail: 4tik@mail.ru

Satellite radio navigation system (SRNS) are used in various areas of national economy, and the area of applications is constantly expanding. One of directions of development of SRNS is to use a local functional additions (LFD) based on pseudo satellites (PS), which are similar on navigation satellites (NS) located on ground. Using LFD, you can also conduct navigation measurement, including situation when radio signals from NS are not available or insufficient. One of the issues when deploying these systems is to improve the accuracy of navigation definitions using LFD, including situation of unavailability of radio signals from NS. Expressions, which link correlation matrix of estimation errors coordinate and correlation matrix of pseudo range in radio navigation systems using pseudosatellites and navigation satellites together with pseudosatellites are given in that article. Concept of generalized geometrical factor in radio navigation systems with pseudosatellites are introduced. Results of analysis of generalized geometrical factor are given and recommendations on appropriate geometry placement of pseudosatellites and on their radiation power are formed.

 

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