In literature, the scan rate modulation (SRM) jamming technique is only analyzed interpretively and qualitatively, which may lead suboptimal performance for sequential lobing radars (SLRs). Hence, this article focuses on the theoretical analysis and optimization of the SRM technique against SLRs. We theoretically analyze the SRM, provide quantitative results, and propose a method to maximize the angular error created on the radar. We analytically express the angular error regarding radar squint angle, antenna parameters, jamming-to-signal ratio (JSR), and other randomly distributed parameters. We show that the distribution of jamming pulses between two radar receive antennas has the most impact on angular root mean square error (RMSE). Duty cycle is the only parameter that changes the distribution of jamming pulses, and the proposed method selects the optimal duty cycle value so that the maximum angular RMSE is achieved. We show that the optimized SRM technique improves the performance of the traditional SRM significantly, and the selection of duty cycle value between $27\%-37\%$ maximizes the angular RMSE of the radar when JSR values are in the range of 10–15 dB.
Optimized Scan Rate Modulation Jamming Against Sequential Lobing Radars
IEEE Transactions on Aerospace and Electronic Systems ; 60 , 2 ; 1440-1449
2024-04-01
1138262 byte
Article (Journal)
Electronic Resource
English
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