Phased array radar task scheduling method

A phased array radar and radar technology, applied in the field of radar systems, can solve the problems of insufficiently exploiting radar resources, and achieve the effects of reducing the mission loss rate and improving resource utilization.

Inactive Publication Date: 2012-12-19
UNIV OF ELECTRONIC SCI & TECH OF CHINA
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Problems solved by technology

[0005] The purpose of the present invention is to solve the problem that the existing pulse dwell scheduling algori

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  • Phased array radar task scheduling method

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Embodiment Construction

[0022] The present invention will be further elaborated below in conjunction with the accompanying drawings and specific embodiments.

[0023] Radar dwell event model: The radar beam dwell task can be described by the following model:

[0024] T={T r , T n ,tp,w,ld,rt,st,pri}

[0025] Among them, T r is the pulse repetition period, T n is the number of accumulated pulses, tp is the pulse width, w is the length of the time window, ld is the length of the dwell time, rt and st are the expected launch time and actual execution time of the task respectively, and pri is the priority of the working mode.

[0026] During online scheduling, according to the signal processing of radar echoes, the resident task can be refined into launch period, waiting period and receiving period, such as ld={tx,tw,tr}, where tx, tw and tr are respectively The transmit period length, wait period length and receive period length of the dwell.

[0027] In order to achieve pulse interleaving, the ra...

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Abstract

The invention discloses a phased array radar task scheduling method which specifically comprises the following steps of: summarizing all radar events; acquiring all radar events which can be executed at the moment pointed by the current time pointer tp; calculating the integrated priority of the radar events; and acquiring the radar events meeting resource constraint conditions at tp to obtain the final even type set. With the method, the resident event wave beam waiting period is fully utilized through the pulse interlacing technology and the time pointer, the resource utilization rate of a radar system is effectively increased, and the task missing rate is reduced; and the pulse interlacing time and the energy constraint conditions are considered under different waveform parameters, and the demand that the transmitted waveform needs to be adaptively changed under complex changeable environments can be satisfied.

Description

technical field [0001] The invention belongs to the technical field of radar systems, and relates to a phased array radar task scheduling method, in particular to a task scheduling method based on time pointer and pulse interleaving technology. Background technique [0002] The flexible and effective task scheduling method is the basis for giving full play to the multifunctional advantages of phased array radar, and it is also one of the important features that distinguish it from other radars. The purpose of the task scheduling method is to arrange the execution sequence of various event requests in order to obtain the optimal radar performance. [0003] Phased array radar task scheduling methods are mainly divided into two categories: template method and adaptive scheduling method. In the template method, all the templates are designed offline, which means that the radar is arranged to perform fixed tasks in sequence within each scheduling interval, such as Radar needs to...

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Application Information

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IPC IPC(8): G06F9/46G06F9/50
Inventor 谢潇潇陈杰陆逸张伟陈明燕
Owner UNIV OF ELECTRONIC SCI & TECH OF CHINA
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