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3 results about "Multilateration" patented technology
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Multilateration is a navigation and surveillance technique based on the measurement of the times of arrival (TOAs) of energy waves (radio, acoustic, seismic, etc.) having a known propagation speed. The time origin for the TOAs is arbitrary. (By the reciprocity principle, any conceptual method that can be used for navigation can also be used for surveillance, and vice versa.) For surveillance, a subject of interest – in cooperative surveillance, often a vehicle – transmits to multiple receiving stations having synchronized 'clocks'. For navigation, multiple synchronized stations transmit to a user receiver. To find the coordinates of a user in n dimensions (typically, n = 2 or n = 3), at least n + 1 TOAs must be measured. Multilateration systems are also called hyperbolic systems, for reasons discussed below.
An OFDM inductive integrated system that integrates a multi-station, multi-target matching algorithm and system for radial velocity.
This application relates to a multi-station, multi-target matching algorithm and system for OFDM sensory integration system that integrates radial velocity. The method includes constructing sensor node groups among all sensor nodes; determining a set of candidate locked targets for each sensor node group; filtering sensor node groups belonging to the same candidate locked target to obtain a tracking node group; converting candidate locked targets matched with the tracking node group into locked targets; completing the pairing relationship between the remaining sensor nodes and locked targets; if candidate locked targets still exist, continuing to construct sensor node groups and perform matching until the candidate locked targets disappear; and relocating the locked targets using distance measurement information from all sensor nodes. The multi-station, multi-target matching algorithm and system for OFDM sensory integration system that integrates radial velocity, based on multi-point positioning and simultaneously introducing a multi-dimensional judgment method, achieves early elimination of infeasible associations, significantly improving association reliability while ensuring positioning accuracy.
Owner:SPARK SPACETIME (CHENGDU) TECHNOLOGY CO LTD