A correction method for radar detection range evaluation in interference environment

Abstract

Effective evaluation of radar detection range in jamming environment is crucial to the grasp of battlefield situation. The equation widely used in engineering ignores the influence of system noise, and this is easily to cause the distortion of radar range evaluation in weak electromagnetic environment and may even lead to a situation that the detection distance in jamming environment is greater than that without interference. To solve the problem, this paper performed a detailed derivation of the radar detection range evaluation in different situations, before and after taking anti-jamming measures in main-lobe and side-lobe jamming environment. Correction method to the traditional calculation is proposed, closed-form expressions are given correspondingly as well. Simulation shows that the correction method has considerable universality and can effectively avoid the distortion of radar range evaluation in weak jamming environment, which is of great significance to the analysis and evaluation of radar detection range under different jamming environment.

Keywords

• interference environment
• radar detection distance
• self-defense distance
• side-lobe jamming
• main-lobe jamming