Airborne opportunistic array radar target searching algorithm based on search resource management

Abstract

The invention discloses an airborne opportunistic array radar target searching algorithm based on search resource management. The airborne opportunistic array radar target searching algorithm comprises the steps of: firstly, discussing important search parameters, determining priority of each subregion according to priori knowledge, determining average power pavi, beam width theta i and beam residence time tdi of an airborne opportunistic array radar in the i-th subregion as optimization parameters, constructing a signal-to-noise ratio Snri, introducing credibility, and calculating beam position digits Ni and search frame periods Tfpi of different threat level regions; secondly, calculating detection probabilities pdi, and establishing a radio frequency stealth constraint planning model under an uncertain condition of a target threat environment by taking the minimized radiation energy and the maximum detection probability as target functions; and finally, solving the model by adoptingan improved genetic algorithm. The optimized radar target searching algorithm is designed by the invention, has good detection performance, and improves the radio frequency stealth performance of theairborne opportunistic array radar.

Description

technical field [0001] The invention belongs to the technical field of airborne opportunity array radar resource management, and in particular relates to an airborne opportunity array radar target search algorithm based on search resource management. Background technique [0002] With the emergence of combat theories and combat forms such as information warfare, joint operations, network-centric warfare, precision warfare, and system confrontation warfare, information perception capabilities have become one of the key factors that determine the outcome of a war; Improvements and upgrades, advanced high-altitude ballistic missiles, mid- and low-altitude stealth aircraft, and low-altitude cruise missiles have become the biggest killers of modern information warfare. As an important means of perception, the current radar system has been greatly challenged. Taking phased array radar, the most important radar system at present, as an example, its appearance has greatly promoted ...

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Problems solved by technology

[0006] Although the above method has a good detection probability and is conducive to improving the radar's search and detection capabilities, it is difficult to describe the uncertainty of the threat level of the target due to the diversity of targets, as well as the existence of various camouflaged targets and spoofing radiation sources, and it is difficult to adapt to The battlefield has limitations, and the optimization of radiation energy is not considered, and the radio frequency stealth performance is not high

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