Systems Engineering and Electronics ›› 2022, Vol. 44 ›› Issue (8): 2419-2426.doi: 10.12305/j.issn.1001-506X.2022.08.05

• Electronic Technology • Previous Articles     Next Articles

Spoofing signal detection method based on adaptive immunity algorithm

Haowei CHANG1,*, Chunlei PANG1, Zehui GUO1, Liang ZAHNG1, Minmin LYU2, Chuang ZHANG3   

  1. 1. Information and Navigation College, Air Force Engineering University, Xi'an 710077, China
    2. Unit 95801 of the PLA, Beijing 100893, China
    3. Unit 95510 of the PLA, Guiyang 550029, China
  • Received:2021-10-25 Online:2022-08-01 Published:2022-08-24
  • Contact: Haowei CHANG

Abstract:

Aiming at the problems of complex ambiguity resolution and limited application scenarios in carrier phase difference detection method, an spoofing signal detection method based on adaptive immune algorithm is proposed. Based on the carrier phase double difference detection, two detection modes of normal signal and deception signal are constructed; Then the immune algorithm is used to obtain the affinity index between the data to be detected and the monitor, and the monitors that meet the threshold requirements are selected, so as to calculate the probability that the data to be detected belongs to each detection mode. In order to solve the problem of false alarm in the actual detection process, an adaptive algorithm is introduced to adjust the crossover probability and mutation probability nonlinearly, which improves the accuracy of the detection results. The experimental results show that the accuracy of the proposed method for deception signal detection can reach 98.8%, and the deception interference signal detection is effectively realized.

Key words: forward spoofing, carrier phase double difference observation value, immune algorithm, deception detection, adaptive algorithm

CLC Number: 

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