Method for quantitatively evaluating interception sensitivity of aircraft platform

Abstract

The invention provides a method for quantitatively evaluating the interception sensitivity of an aircraft platform. According to the invention, the sensitivity of interception can be reduced to the minimum, and the whole machine viability is improved. The invention is realized through the following technical scheme: the method comprises the following steps: 1. according to the threat database of the passive detection system of the opposite side and the gain directional diagram of the active radio frequency sensor under the antenna coordinate system, calculating the interception distance corresponding to each pitch angle and azimuth angle under the body coordinate system in a three-dimensional space, and converting the spherical coordinate system into a rectangular coordinate system to obtain a three-dimensional intercepted distance; for the active radio frequency sensor in the threat frequency band, calculating the interception distance of each sensor in the threat area, and taking themaximum interception distance as a final result; for the threat frequency band and the threat area, calculating an equivalent interception ball of the aircraft platform, and calculating an equivalentinterception ball radius according to the equivalent interception ball; and quantitatively evaluating the interception sensitivity of the aircraft platform according to the obtained three-dimensionalintercepted distance of the aircraft platform and the equivalent interception sphere radius.

Description

technical field [0001] The invention relates to a method for quantitatively evaluating the interception sensitivity of an aircraft platform, which is used for evaluating the interception sensitivity of the radiation signal of an active radio frequency sensor in an all-airspace passive detection system against an environment. Background technique [0002] The aircraft platform is equipped with various radio frequency sensors, including detection, communication, navigation, identification, jamming, etc. Among them, the active radio frequency sensor is used throughout the entire flight stage, and has the characteristics of a large number of types, a wide antenna layout, and a wide frequency band distribution. When working, it needs to actively radiate electromagnetic signals to the outside, so the risk of being intercepted by the passive detection system is high. The viability of the platform poses a huge threat. Without exception, all of these put forward high requirements on...

AI Technical Summary

Problems solved by technology

Among them, the active radio frequency sensor is used throughout the entire flight phase, and has the characteristics of a large number of types, a wide antenna layout, and a wide frequency band distribution. When working, it needs to actively radiate electromagnetic signals to the outside, so the risk of being intercepted by the passive detection system is high. Platform viability poses a huge threat

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