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Optimized radar task scheduling method of digital array based on pulse interlacing

A digital array radar, task optimization technology, applied in data processing applications, instruments, resources, etc., can solve the problem of not considering the impact of imaging requirements scheduling method, not considering the time sequence relationship of different types of tasks, etc.

Active Publication Date: 2017-05-17
AIR FORCE UNIV PLA
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AI Technical Summary

Problems solved by technology

[0005] Although the existing scheduling method based on pulse interleaving technology utilizes the time resources of the pulse waiting period, it only considers how to optimize the performance of multi-target search and tracking, and does not consider the time difference of different types of tasks in the actual scheduling process. Sequential relationship, such as adding the searched tasks to the tracking task list, and imaging some tracking tasks, etc.
At the same time, most strategies do not consider the impact of imaging requirements on scheduling methods

Method used

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  • Optimized radar task scheduling method of digital array based on pulse interlacing
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  • Optimized radar task scheduling method of digital array based on pulse interlacing

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example

[0091] Example: Imaging Task Scheduling Experiment

[0092] Simulation experiment: In the simulation experiment, three radar working modes of search, tracking and imaging are selected. Typical parameters of various tasks are shown in Table 1. The total simulation time is set to 6s, the scheduling interval length is selected to be 50ms, and the average power that the radar can provide is 400W. For search and track missions, the radar emits a narrowband signal with a carrier frequency f c =10GHz, signal bandwidth B=10MHz, pulse repetition frequency PRF=1000Hz; for imaging tasks, the radar transmits chirp signal, carrier frequency f c =10GHz, signal bandwidth B=300MHz, pulse repetition frequency PRF=1000Hz.

[0093] Table 1 Radar resident task parameter list

[0094]

[0095] Define the scheduling success rate (SSR), realized value rate (HVR), time utilization rate (TUR) and energy utilization rate (EUR) as the performance indicators of radar resource scheduling, the expre...

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Abstract

The invention provides an optimized radar task scheduling method of a digital array based on pulse interlacing. The method comprises the steps that 1) searching, tracking and imaging task models are established; 2) a reasonable and effective radar task priority is designed; and 3) a scheduling model is established, different radar imaging tasks are scheduled on the premise that the resource constraint is satisfied, whether an imaging task satisfies the expected imaging quality is determined, and a radar task to execute in a next scheduling interval is determined. The reasonable resource scheduling model which pulse interlacing reside in is established, objects are searched and tracked which ISAR imaging of sparse aperture cognition is carried out on part of precise tracking objects, the working efficiency of the radar is improved effectively, and a high-quality imaging effect is obtained.

Description

technical field [0001] The invention relates to an information processing technology and an optimal scheduling strategy, in particular to an optimal scheduling method for digital array radar tasks based on pulse interleaving. Background technique [0002] With the improvement of radar digitization, digital array radar, as a new system radar, has received extensive attention and research from the radar industry. Compared with the traditional analog phased array radar, digital array radar not only has the advantages of high detection accuracy, strong ability to detect complex targets, strong anti-interference ability, etc., but also has the characteristics of flexible signal processing, and can simultaneously detect multiple airspace Search, track and image multiple targets, thus saving radar time resources to a great extent. [0003] A reasonable, flexible and efficient scheduling strategy is the key to whether it can give full play to its advantages. Common scheduling meth...

Claims

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Application Information

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IPC IPC(8): G06Q10/06
CPCG06Q10/06312
Inventor 张群孟迪罗迎陈怡君孙莉林永照梁必帅
Owner AIR FORCE UNIV PLA
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