Damage Efficiency Assessment On Phased Array Radar By Antiradiation Missile

Phased array radar is a core component of modern weapon system.In wartime,it is the a to obtain the intelligence information of enemy in the first time,provide early warning and strategic support for the local air defense operation,and thus achieve the victory of the war.So it usually is the first military target to be attacked.Phased-array antenna is the most important component of the phased-array radar.The degree of damage caused by the attack directly affects the electrical performance of the radar,thus affecting the performance of radar function.The existing research mainly focuses on the physical damage effect of the on phased array antenna attacked by anti-radiation missile and the damage effect of the phased array radar is studied rarely from the aspect of electrical performance.Since the electrical performance parameters of the phased array antenna are the most direct index to evaluate the operational performance of the phased array radar,the study from the point of electrical performance can more accurately and quantitatively evaluate the damage effect of the phased array radar caused by anti-radiation missile.In this paper,the damage effect of AGM-88 anti-radiation missile on typical phased array antenna is studied by taking the approach of "physically damaged antenna— electric performance damage —operational performance damage".Main research contents include:(1)The antenna configuration design is completed by using Taylor synthesis method,and a phased array antenna model with number of elements of 900 is established.(2)The phased-array antenna is equivalent to a certain thickness plate of LY-12 aluminum plate.By establishing the projectile intersection model,the physical damage effect on the equivalent target of the phased-array antenna is studied under typical working conditions,that are the damage by fragments and by shock wave separately,and the damage by combination of fragment and shock wave.(3)Based on the electromagnetic simulation software FEKO,the relationship between physical damage effect and electric performance damage effect is studied.(4)By use of the hierarchical analytical Fuzzy comprehensive evaluation method,the operational performance damage degree of the phased array antenna is evaluated.The results show that the operational performance of phased-array antenna is moderately damaged under the study condition,and the performance degradation caused by shock wave damage is much greater than that of fragment damage.The results of this paper can provide scientific basis and method reference for evaluating the damage effect of anti-radiation missile on phased array antenna.