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Method for dynamically scheduling residence time of ship-based phased-array guidance radar

A phased array radar, dynamic scheduling technology, applied in the direction of instrumentation, design optimization/simulation, calculation, etc., can solve the problems of not considering the target trajectory state, different dwell time, etc.

Active Publication Date: 2018-11-23
NORTHWESTERN POLYTECHNICAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although this method takes into account the influence of the signal-to-noise ratio on the beam dwell time, the dwell time is still artificially given as a constant, and it does not consider the problem that the beam dwell time is different for different target trajectory states.

Method used

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  • Method for dynamically scheduling residence time of ship-based phased-array guidance radar
  • Method for dynamically scheduling residence time of ship-based phased-array guidance radar
  • Method for dynamically scheduling residence time of ship-based phased-array guidance radar

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Embodiment 1

[0098] The method for dynamically dispatching the dwell time of the shipborne phased array guidance radar provided by the present invention comprises the following steps:

[0099] Step 1: Divide the overall scan area into scan area grids

[0100] The most important feature of phased array radar is that the radar does not realize beam scanning by mechanical rotation, but uses electronic means to control the phases of many units that make up the antenna to realize the scanning of the antenna beam in space. During the scanning process of the phased array radar in its sector horizon, the radar signal continuously jumps in the rectangular scanning area. According to the wave position arrangement of the phased array radar and the main lobe direction of the radar signal, the scanning area can be divided into figure 1 To divide:

[0101] Such as figure 1 As shown, the overall scanning area is divided into N lines ×N cols independent scan area units, N lines , N cols Calculated a...

Embodiment 2

[0174] The following is a specific example to illustrate the practical application of the above method. In a calm sea area, a single target (anti-ship missile) is attacked towards the defensive ship. The ship-borne multifunctional phased array radar adopts the traditional priority The scheduling method and the principle of dynamic dwell time allocation proposed in this embodiment are simulated, and the time weight value, effective detection time, and signal-to-noise ratio of the phased array radar monitoring single target (anti-ship missile) are tracked and recorded. The recording process is from the discovery of the target to the The target (anti-ship missile) was destroyed.

[0175] Situation of enemy aircraft and situation of our side at the time of implementation

[0176] The operational background of the example is selected as the air defense process of the ship formation, and an enemy combat aircraft that is moving in a uniform straight line and flying towards the radar ...

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Abstract

The invention provides a method for dynamically scheduling the residence time of ship-based phased-array guidance radar, and belongs to the technical field of radar resource management. The method includes dividing integral scanning areas into a plurality of scanning area units according to scanning area grids; computing time weight values M<t> of the scanning area units; computing the effect detection time T<ef> of phased-array units; computing work period coefficient factors C; computing power distribution coefficients T<e> of the target phased-array units; computing signal-to-noise ratios.The method for dynamically scheduling the residence time of the ship-based phased-array guidance radar has the advantages that the performance of the radar can be effectively improved by the aid of the method when different tasks are executed, the detection distances of the radar for targets can be enlarged, and the detection time can be shortened; the radar can be quickly switched into tracking states after the targets are detected; the residence time of the radar for the targets can be shortened to a great extent in tracking phases on the premise that the high efficiency is guaranteed by theradar, and wastage of radar resources can be reduced.

Description

technical field [0001] The invention belongs to the technical field of radar resource management, and in particular relates to a dynamic scheduling method for dwell time of a shipborne phased array guidance radar. Background technique [0002] The shipborne phased array guidance radar can complete a variety of radar tasks in one scheduling cycle, such as search and tracking. With the help of flexible beam pointing and agile characteristics, the radar can reasonably allocate time and energy for different tasks such as airspace search and target tracking. For this reason, a radar resource scheduling strategy is needed to effectively allocate radar resources and optimize the overall performance of the radar. [0003] There are many resource scheduling methods for existing phased array radars. Aiming at the low detection rate of sea surface targets and the large number of tracking targets, a multi-target detection and tracking method based on beam scheduling is proposed. This ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50G01S7/41
CPCG01S7/41G06F30/20
Inventor 李波梁诗阳李曦彤高晓光高佩忻
Owner NORTHWESTERN POLYTECHNICAL UNIV