Mobile station positioning design method based on Alamouti coding
A design method and mobile station technology, applied in electrical components, digital transmission systems, error prevention, etc., can solve the problems of downlink signal multipath fading, bit error rate can not be compensated and corrected, etc., to reduce the bit error rate , optimize system performance, and improve the effect of cross-correlation characteristics
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[0022] 1. Traditional TOA TDOA positioning method
[0023] (1) TOA positioning technology
[0024] TOA positioning technology is also called circular positioning technology, such as figure 1 , if the distance Ri between the object to be positioned and the i-th base station is already known, then the object to be positioned must be on the positioning circle with the base station as the center and the measured distance Ri as the radius. When the number of base stations is M (M>=3), the M positioning circles must intersect at one point, and the intersection point is the position of the object to be positioned.
[0025] Assume that the location coordinates of the i-th base station are (x i ,y i ), the position coordinates of the object to be positioned are (x, y), then the distance from the object to be positioned to the base station satisfies the following relationship:
[0026] R i = ( ...
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