Sushich A. Satellite navigation systems availability at air traffic Management

The method of radionavigation systems availability estimation is developed. This method uses (is based on) aggregative model and on generalized model of satellite navigation systems availability. The method of satellite navigation systems availability estimation is proposed. The complex procedure of navigation definitions optimization when several independent satellite navigation systems are used is developed. The method and generalized algorithm for determination of satellite navigation systems availability at any operation phase of aircraft is developed. The basic characteristics of generalized algorithm components are defined. The new structure of hardware and software complex of Satellite navigation systems availability estimation as well as the structure of control program for the hardware and software complex are developed. The detailed list of program functions of processing navigation satellite data is given. Reliability and efficiency of developed methods and algorithms are verified with calculation results of satellite navigation systems availability. The results are obtained with hardware and software complex breadboard using the data of high frequency satellite receivers GG24 and ProPak-G2.