A Research on the Applicability of ADS-B Data Links in Near Space Environment

To test the applicability of ADS-B data links in near space environment, the channel propagation models of 1090ES and UAT (two kinds of ADS-B data links) in near space and in ground environment are proposed. Simulations of channel transmission performance of links between airplane and near space platform are conducted and an analysis of simulation results is made in aspects of path loss, signal to noise ratio and bit error rate. The results show that, within certain near space platform coverage, ADS-B data links can meet all conditions of aeronautical communication in near space communication environment.