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中文摘要：
针对室内环境下无线信号的功率既可能增强又可能减弱而导致定位测量误差具有正负偏置的问题，提出了一种改进的到达信号强度室内定位算法，利用定位圆环相交，再对相交各点采用加权质心的算法获得移动台位置．仿真结果表明，这种定位方法能有效提高非视距环境下室内定位的精度．
英文摘要：
Signal power can be enhanced or decreased due to the interference of both none line of sight and path loss in the indoor environment, which causes a bias property of both positive and negative in the received signal strength （RSS） measurement error. A method for improving RSS positioning is proposed. The intersections of positioning annuluses are used in the algorithm of weighted centroid to estimate the position of the mobile stations. Simulation shows that this algorithm can improve the location accuracy in the indoor environment.
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