Collaborative detection and power distribution method for target tracking in multi-radar system

A technology of cooperative detection and target tracking, which is applied in the direction of radio wave measurement system, measurement device, radio wave reflection/reradiation, etc.

Active Publication Date: 2018-11-13
XIDIAN UNIV +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In this case, a reasonable and challenging problem is how to coordinately set the false alarm rates of multip

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  • Collaborative detection and power distribution method for target tracking in multi-radar system
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  • Collaborative detection and power distribution method for target tracking in multi-radar system

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Embodiment 1

[0062] See figure 1 ~Figure 8, figure 1 It is a schematic flow chart of a cooperative detection and power allocation method for target tracking in a multi-radar system provided by an embodiment of the present invention, figure 2 A schematic diagram of cooperative detection and power allocation for target tracking in a multi-radar system provided by an embodiment of the present invention, image 3 It is a schematic diagram of the internal relationship between system parameters and tracking accuracy provided by the embodiment of the present invention, Figure 4 A schematic diagram of radar network deployment under different target radar cross-sectional area models provided by the embodiment of the present invention, Figure 5a-Figure 5b A schematic diagram of the relationship between the Bayesian Cramer-Rao lower bound and the root mean square error of tracking under a different target radar cross-sectional area model provided by the embodiment of the present invention, Fig...

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Abstract

The invention relates to a collaborative detection and power distribution method for target tracking in a multi-radar system. The collaborative detection and power distribution method for target tracking in a multi-radar system includes the steps: establishing a multi-radar system; obtaining a motion model; obtaining an observation model; obtaining a detection model; sending a transmission power distribution result to a transmitter, calculating an effective measurement value of each radar station according to a false alarm rate, calculating the interconnection probability according to the effective measurement values so as to update the target state, wherein the above-mentioned distribution of the transmission power and the selection of the false alarm rate are determined by a final optimization model which is obtained by a Bayesian information matrix obtained by substituting a relaxed information reduction factor with the defined detection model; and minimizing the final optimizationmodel to obtain the optimized transmission power and the optimized false alarm rate. The collaborative detection and power distribution method for target tracking in a multi-radar system is directed to target tracking closed-loop sensing in a multi-radar system, appropriately selects false alarm rate of each radar, for the computing power of the detector according to a fusion center of each tracking frame, and, for the transmitter, correctly distributes the transmission power resources with a predetermined power budget at each tracking frame.

Description

technical field [0001] The invention relates to the technical field of radar signal processing, in particular to a method for cooperative detection and power distribution of target tracking in a multi-radar system. Background technique [0002] Most tracking systems in recent years rely on multiple radars working together. Information from multiple radars can be fused efficiently, thus resulting in increased area coverage, probability of detection, location and tracking performance. Due to these advantages, multi-radar systems have received more and more attention in various application fields, one of the main applications is detecting and tracking defensive targets. [0003] For practical applications, the radars in a multi-radar system work in an active manner, and their transmit power should be maximized for better target tracking performance. However, on a ship, due to the limited energy, if the radar is constantly transmitting maximum power, its energy will be deplete...

Claims

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Application Information

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IPC IPC(8): G01S13/66G01S13/70
CPCG01S13/66G01S13/70
Inventor 严俊坤马时飞刘宏伟周生华纠博
Owner XIDIAN UNIV
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