Phased array beam dwell scheduling method based on scheduling benefit and genetic algorithm

Abstract

The invention discloses a phased array beam dwell scheduling method based on a scheduling benefit and a genetic algorithm, belongs to the field of phased array radar resource management, and particularly relates to a method for implementing adaptive beam dwell scheduling by utilizing a task priority and a scheduling strategy. According to the invention, firstly, on the basis of a target threat model, target attribute information is expressed with a threat degree function; secondly, a two-dimensional priority list thought is utilized, a two-dimensional priority list is utilized for twice to integrate three parameters of a working mode priority, a deadline and a threat degree into a comprehensive priority in a nonlinear weighting mode, and uniqueness of the comprehensive priority is ensured;then the comprehensive priority is combined with a validity function of task scheduling to form a new scheduling benefit and accordingly, a scheduling optimization model is established, wherein a pulse interleaving technology and time and energy constraint conditions are considered; and finally, such nonlinear optimization problem is solved by the genetic algorithm. According to the phased arraybeam dwell scheduling method based on the new scheduling benefit, which is disclosed by the invention, a loss rate of a task can be effectively reduced, a hit value ratio and a correction value rate are improved, and meanwhile, an execution threat rate and a time utilization rate are also promoted.

Description

technical field [0001] The invention belongs to the field of phased array radar resource management, in particular to a method for implementing adaptive beam dwell scheduling by using task priority and scheduling strategy. Background technique [0002] Phased array radar is widely researched and applied at present. Because its beam can be directed at will and can be changed within microseconds, it has multi-function, multi-target and highly adaptive capabilities, and is extremely flexible (see Literature: Zhang Guangyi. Phased Array Radar System [M]. National Defense Industry Press, 1994.). In order to give full play to the combat performance of phased array radar, it is necessary to implement effective beam dwell scheduling. In the radar beam dwell scheduling, the main factors affecting its performance include: assignment of task priority and selection of scheduling strategy. [0003] The allocation of task priority is the basis of beam dwell scheduling. In the traditiona...

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Problems solved by technology

[0005] In view of the problem that the current comprehensive priority allocation method does not combine the three factors of work mode priority, deadline and target threat degree, and the problem that the linear weighting method cannot guarantee the uniqueness of the comprehensive priority of each task, the present invention will comprehensively consider The comprehensive priority assignment method of task work priority, deadline and target threat degree is combined with genetic algorithm to form a phased array beam dwell scheduling method based on new scheduling income and genetic algorithm

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