Systems Engineering and Electronics ›› 2023, Vol. 46 ›› Issue (1): 62-70.doi: 10.12305/j.issn.1001-506X.2024.01.07

• Electronic Technology • Previous Articles    

Design and analysis of non-retrodirective cross-eye interference experiment based on non-pulse vector network analyzer

Liang ZHOU, Jin MENG, Yongcai LIU, Wei LI, Haonan YANG   

  1. National Key Laboratory for Vessel Integrated Power System Technology, Military Electric Power Science and Technology Institute, Naval University of Engineering, Wuhan 430033, China
  • Received:2022-11-18 Online:2023-12-28 Published:2024-01-11
  • Contact: Liang ZHOU

Abstract:

Cross eye technology is one of the most effective ways to counter monopulse radar. For cross eye interference, the simulation modeling, experimental design, and implementation are more complex. Based on the principle of cross eye interference, the principle of monopulse angle measurement and the accurate measurement of amplitude and phase of vector network analyzer, a non-retrodirective cross eye interference experimental system is designed based on horn antenna, microstrip antenna, amplitude and phase regulator, and non-pulse vector network analyzer. In the microwave anechoic chamber environment, the angle measurement experiment based on the vector network analyzer and the non-retrodirective cross eye interference experiment are carried out successively, and the error is analyzed by establishing the electromagnetic simulation model of the phase center of the interference antenna. The experimental and simulation results show that the change trend of the angle value measured experimentally and the theoretical angle value with the phase difference under the cross eye interference is consistent, the error between the theoretical maximum angle value and the actual maximum angle value is lower than 2°, and the corresponding cross eye gain error is less than 0.5. The non-retrodirective cross-eye experimental system designed based on the vector network analyzer is feasible, which can simulate the non-retrodirective cross eye jamming to the passive monopulse radar, and can partially simulate the retrodirective cross-eye jamming application scenarios, providing some guidance for the design and testing of the cross-eye jammer.

Key words: monopulse radar, cross-eye, jammer, vector network analyzer

CLC Number: 

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