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ACTA AERONAUTICAET ASTRONAUTICA SINICA ›› 2022, Vol. 43 ›› Issue (7): 325407.doi: 10.7527/S1000-6893.2021.25407

• Electronics and Electrical Engineering and Control • Previous Articles     Next Articles

Identification of interference source for single satellite geolocation using chaotic mapping

ZHANG Yi1, ZHAI Shenghua1, TAO Haihong2   

  1. 1. China Academy of Space Technology(Xi'an), Xi'an 710100, China;
    2. National Laboratory of Radar Signal Processing, Xidian University, Xi'an 710071, China
  • Received:2021-02-21 Revised:2021-06-11 Published:2021-05-31
  • Supported by:
    (]National Natural Science Foundation of China (61771015)

Abstract: To cope with the issue of locating continuous high power interference in satellite communication, an identification of the interference source is proposed based on chaotic mapping. Relying on the initial value sensitivity of chaotic oscillator to analyze signal correlation, the proposed method can effectively reduce the impact of dynamic characteristics of the downlink on the uplink, and further improve the performance of interference source identification. Statistical analysis of the measured data shows that the complexity and localization performance of correlation algorithms are different with different chaotic maps. Moreover, the simulation result shows that with given decision thresholds, the probability of interference source identification is more than 75%; the position accuracy is close to 23 km, with a location probability of 65%.It is also confirmed that the proposed model is better than the existing quantum-inspired algorithm.

Key words: interference source identification, chaotic mapping, single satellite localization, signal correlation, satellite communicationhttp

CLC Number: