Power bandwidth joint allocation method for target tracking of networking radar

Abstract

The invention discloses a power bandwidth joint allocation method for target tracking of a networking radar, and the method comprises the following steps: tracking a target at a k moment through employing Kalman filtering, and obtaining the prediction information of a target state at a k+1 moment; acquiring an FIM determinant of target state estimation by using the state prediction information of the target at the k+1 moment so as to measure the tracking precision of the target; taking the determinant of the maximized FIM as a target function, and establishing a double-variable optimization problem containing two variables of power and bandwidth; describing a bivariate optimization problem as a cooperative game optimization model for maximizing alliance benefits; and solving the cooperative game optimization model by using a Shapley value algorithm in combination with a cyclic minimization algorithm to obtain an optimal power and bandwidth allocation scheme at the k+1 moment. According to the invention, power bandwidth joint allocation under the target tracking background is realized, the target tracking precision is improved, the problem of low resource utilization rate under the condition that multiple resources are limited is solved, and the target tracking performance of the system is further improved.

Description

technical field [0001] The invention belongs to the field of resource management of networked radars, relates to target tracking and mathematical optimization technology, and in particular relates to a power bandwidth joint allocation method for networked radar target tracking. Background technique [0002] As a cooperative detection platform composed of multiple radar nodes, the networked radar system has richer types of system resources and more complex resource scheduling methods than simple monostatic radars. The target positioning and tracking accuracy of the networked radar system are related to resources such as the transmit power, bandwidth of each radar and the number of radars in the system. Theoretically, the higher the transmit power of each radar and the wider the signal bandwidth, the higher the target positioning and tracking accuracy will be. However, in practical applications, system resources will be limited by factors such as radar hardware conditions and...

AI Technical Summary

Problems solved by technology

[0008] Purpose of the invention: In order to overcome the problem of low resource utilization in the prior art, provide a cooperative game-based power-bandwidth joint allocation method applied to the background of networked radar target tracking, which realizes multi-resource joint allocation of power and bandwidth, and improves resource utilization and system trace performance

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