Static Target Location Method Combining Mobile Node Velocity Information and Target Azimuth Information

Abstract

The invention discloses a static target locating method combining mobile node speed information and target azimuth information. The method comprises the following steps: deploying a mobile node in a preset area for a static target to be located; and perform iterative computation on location information of the static target relative to the mobile node according to the preset sampling period and initial location, wherein each iterative calculation comprises the following operations: obtaining the speed information of the mobile node and the azimuth information of the static target, and calculating the location information of the static target relative to the mobile node according to the obtained speed information and azimuth information. By adopting the iterative calculation formula as a linear system, the static target locating method disclosed by the invention has the advantages of global optimum and exponential convergence and can be used for guaranteeing the final certain convergence.

Description

technical field [0001] The invention relates to the technical field of mobile sensors, in particular to a static target positioning method combining mobile node speed information and target azimuth angle information. Background technique [0002] In many applications such as search and rescue and signal source detection, being able to determine the location information of the target is a crucial key. However, for uncooperative targets and scenarios where the target source itself cannot locate its own position, it must rely on other objects to achieve relative positioning of the target. [0003] Assuming that there is a mobile node and a static target in a specific area where GPS cannot be used, the mobile node can obtain the measurement information of the target in real time, and at the same time directly obtain the relevant measurement information of itself. Our purpose is to design a method that enables the mobile node to locate the coordinates of the target in its own co...

AI Technical Summary

Problems solved by technology

[0005] In the patent application with the publication number CN103630874A "target angle measurement and positioning method based on convex combination", a method of using angle measurement to locate the target is disclosed, but it needs to use multiple anchor nodes and assume that the target is in the convex position of the anchor nodes. In-package, high cost, harsh implementation conditions

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