Probabilistic Analysis of the Amplitude-Phase Error Tolerance for Cross-Eye Jamming

• Published in: IEEE transactions on aerospace and electronic systems 2023-02, Vol.59 (1), p.678-684
• Main Authors: Liu, Yongcai, Zhou, Liang, He, Fangmin, Li, Dong, Meng, Jin
• Format: Article
• Language: English
• Subjects: Amplitudes; Confidence intervals; Cross-eye jamming; electronic countermeasures; electronic warfare; Error analysis; Gain; Jammers; Jamming; Jamming performance; Monopulse radar; Phase error; Probabilistic analysis; Probabilistic logic; Probability theory; Radar; Radio frequency; Receivers; Statistical analysis
• ISSN: 0018-9251; 1557-9603
• DOI: 10.1109/TAES.2022.3186968

Cross-eye jamming is a technique to counter monopulse radar. The impact of the amplitude-phase error on the jamming performance is one of the key problems for cross-eye jamming. The tolerance of amplitude-phase error for cross-eye jamming has been analyzed by deterministic analysis. However, the amplitude-phase errors of a practical jammer are commonly stochastic variables due to the variation of working conditions. In this article, the probabilistic analysis of the amplitude-phase error tolerance for cross-eye jamming is studied. By demonstrating that the contours of cross-eye gain can be approximate to a set of ellipses, the probability distributions of cross-eye gain and angle factor are derived, based on the assumption that the amplitude-phase errors of cross-eye jammer are Gaussian distributed. The article presents the instructions to determine the required standard deviation of the amplitude-phase error to produce a specific confidence level of cross-eye jamming performance metric.