Power resource management method for opportunistic array radar multi-target tracking in clutter environment

A multi-target tracking and power resource technology, applied in the field of radar system resource management and optimization, can solve problems such as false alarms or missing alarms of echo signals

Inactive Publication Date: 2018-02-02
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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Problems solved by technology

The existence of clutter makes the echo signal received by the radar have f

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  • Power resource management method for opportunistic array radar multi-target tracking in clutter environment
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  • Power resource management method for opportunistic array radar multi-target tracking in clutter environment

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Embodiment Construction

[0071] In order to facilitate the understanding of those skilled in the art, the present invention will be further described below in conjunction with the embodiments and accompanying drawings, and the contents mentioned in the embodiments are not intended to limit the present invention.

[0072] refer to figure 1 As shown, a power resource management method of an opportunistic array radar multi-target tracking in a clutter environment of the present invention, in a specific embodiment, includes the following:

[0073] 1. Detection model of target echo signal in clutter environment

[0074] In the absence of prior information, using the Neyman-Pearson criterion (Neyman-Pearson criterion) to detect the target echo signal, compared with the case of prior information, the probability of finding the target will be reduced. Using the predicted prior information as the input of the Neiman-Pearson criterion detection to form a Bayesian detector will increase the discovery probabilit...

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Abstract

The invention provides a power resource management method for opportunistic array radar multi-target tracking in a clutter environment. The power resource management method comprises the steps of measuring measurement origin uncertainty caused by clutters by means of an information reduction factor, expressing RCS of targets by using random variables, establishing a random chance-constraint processing model, relaxing the random chance-constraint processing model by adopting a conditional value at risk, converting the random chance-constraint processing model into a certainty model which is easy to solve, further solving the certainty model by adopting a Lagrangian multiplier method, regarding a Bayesian Cramer Rao Lower Bound as a measurement standard for power distribution so as to solvethe optimal power distribution at a next moment, and adopting a probability data association filter for tracking the targets in the clutter environment. The power resource management method considersthe target tracking clutter environment, adopts the information reduction factor for measuring magnitude of clutter influence, further considers a target information uncertainty caused by the target RCS, introduces the random chance-constraint processing model, comprehensively considers the relationship between resources and tracking precision, and makes the model closer to reality.

Description

technical field [0001] The invention belongs to the technical field of radar system resource management and optimization, and specifically refers to a power resource management method for opportunistic array radar multi-target tracking in a clutter environment. Background technique [0002] Opportunistic array radar (OAR) is a new concept radar proposed by foreign scholars for the new generation naval stealth destroyer DD(X) in recent years. The radar takes the stealth of the platform as the design core, and is based on the digital array radar. The unit and the digital transceiver component (DTR) can be arranged arbitrarily at an accessible position in the open space of the carrier platform. The opportunistic digital array radar can "opportunistically" select the working unit, working mode and tactical function by sensing changes in the battlefield environment in real time. [0003] Theoretically, in order to obtain better detection performance of OAR, each transmitting bea...

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Application Information

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IPC IPC(8): G01S13/66
CPCG01S13/66
Inventor 韩清华潘明海龙伟军
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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