New Researches in Electronic Defense Systems

New Researches in Electronic Defense Systems

Reducing Probability of Interception in Active Phased Array Radars Via Beamforming and Power Control under Interceptor’s Direction certainties

Articles in Press

Document Type : Original Article

Author
Mohammad kazemirad
communicatio group of electriacl faculty of Imam Khomeini Maritime university of iran
10.22034/joeds.2026.510657.1085
Abstract
In this paper, transmit beamforming and power control of active phased array radars is deployed to reduce probability of interception. With assumption, that the position of the interceptor is known using the information obtained from electronic support measure systems. Effective radiated power of radar in taegt and interceptor directions analysed. To reduction of interception probability, the effective radiated power in the interceptor’s direction is managed while desired radar detection performance is guaranteed and the power budget of each T/R module is satisfied. Beamforming weights are analytically optimized based on a convex optimization framework. Two proposed beamforming designs are compared with the standard Log-Barrier method in terms of interception The results show that the performance of the proposed algorithms is equal to the results obtained from the CVX software package and it performs better than the benchmark Log_Barrier algorithm in terms of the probability of eavesdropping and in terms of computational complexity.

probability and convergence time.
Keywords
Active phased array radar
power control
Interceptor
Detection probability
Low probability of interception
Beamforming
New Researches in Electronic Defense Systems

Articles in Press, Accepted Manuscript
Available Online from 13 February 2026