Application of maximum elevation angle probability density function to macroscopic selection diversity in low earth orbiting satellite constellation systems

作者：Li Sheng Yi; Wang Kai Yuan^*

来源：International Journal of Satellite Communications and Networking, 2012, 30(5): 212-220.

DOI：10.1002/sat.1013

• BPSK
• BER
• maximum elevation angle
• selection diversity

In a low earth orbiting satellite constellation of communication satellites, the so-called macroscopic selection-diversity (SD) scheme selects the satellite with the maximum elevation angle among the visible satellites as being capable of providing the best quality link for signal propagation. To evaluate the performance of this scheme, we developed a model based on macroscopic SD to describe the probability density function of the maximum elevation angles from an earth station to each visible satellite. The model has the advantage of not involving orbital simulations for data collection, thus avoiding statistical processing as well as curve fitting. We evaluated the model by using it to simulate the bit-error-rate performance of binary-phase-shift-keying modulation in the Globalstart-like Walker 48/8/1 satellite constellation.

• 出版日期2012-10
• 单位中国人民解放军国防大学