Multi moving station passive time difference positioning method
A time difference positioning and movement technology, applied in positioning, radio wave measurement system, measuring device, etc., can solve the problems of easy divergence of positioning results, high computational complexity, and low positioning accuracy, so as to avoid falling into local optimum and high positioning The effect of precision and small amount of calculation
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[0055] The present invention will be further described below with reference to the accompanying drawings.
[0056] The invention discloses a moving multi-station passive time difference positioning method, aiming at solving the problems of low positioning accuracy, large calculation amount and easy divergence of positioning results in the current time difference positioning system. The realization steps are: 1) using multi-station time difference The positioning model obtains three groups of arrival time differences to form a time difference observation matrix; 2) Carry out maximum likelihood estimation of the time difference observation matrix and convert it into the solution of the optimization problem; 3) Initialize the particles and evaluate the fitness function value of each particle; 4) Update the speed and position of the particles; 5) Select the optimal particle according to the fitness function, and update the global extremum; 6) Use the natural selection mechanism to ...
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