Systems Engineering and Electronics ›› 2025, Vol. 47 ›› Issue (5): 1680-1686.doi: 10.12305/j.issn.1001-506X.2025.05.30

• Communications and Networks • Previous Articles    

Adaptive beamforming adjustment method for satellite-based ADS-B based on clustering algorithm

Yiran XIANG, Songting LI, Lihu CHEN   

  1. College of Aerospace Science and Engineering, National University of Defense Technology, Changsha 410073, China
  • Received:2024-04-22 Online:2025-06-11 Published:2025-06-18
  • Contact: Songting LI

Abstract:

Satellite-based automatic dependent surveillance broadcast (ADS-B) has effectively solved the problem that terrestrial-based stations cannot cover the global airspace, but it still faces challenges such as long satellite-ground propagation distance, large attenuation, multiple beam coverage targets, and serious signal conflicts. A digital phased array antenna with 25 elements and 19 sub-beams evenly distributed is designed to solve the problem of serious signal conflict and high probability of aircraft missing detection. First, clustering using representatives is performed on the samples, and then nonlinear optimization of beam direction and coverage area is performed according to the results, in order to reduce signal conflict and improve aircraft detection probability. The simulation results show that the detection probability of aircraft is increased by 9%-13%, the calculation time is decreased by 87%-95%, and the figure of merit is increased by 85%-94% compared with the existing research algorithm.

Key words: satellite-based automatic dependent surveillance broadcast (ADS-B), digital phased array multi-beam synthesis, adaptive beamforming, clustering algorithm

CLC Number: 

[an error occurred while processing this directive]