Distributed space-time correlation model trajectory tracking method based on statistical inference
A time-space correlation and statistical inference technology, applied to radio wave measurement systems, measurement devices, instruments, etc., can solve problems such as easy accumulation of errors, low trajectory tracking accuracy, and poor environmental adaptability
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[0055] The present invention will be further elaborated below in conjunction with the accompanying drawings of the description.
[0056] The trajectory tracking method of the distributed spatio-temporal association model based on statistical inference of the present invention comprises the following steps:
[0057] In the positioning space, beacon nodes are deployed in a grid at equal intervals in the vertical and horizontal directions, and the beacon node information {Node ID , (x, y)} are stored at each unknown node, forming area information and boundary information at the unknown node, where Node ID is the Id number of the beacon node, and (x, y) is its coordinate;
[0058] The beacon node that receives the notification information sent by the unknown node transmits the positioning signal at a fixed frequency, and the unknown node receives and forms multiple time series R according to the beacon node i ;
[0059] Each unknown node constructs the boundary time series, det...
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