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Multi-model adapted WIFI radio map construction and positioning method
Author(s): 
Pages: 112-114,122
Year: Issue:  9
Journal: Electronic Measurement Technology

Keyword:  WIFI positioningradio mapindoor transmit modelmulti-model adapted;
Abstract: 针对室内情况复杂,单一方法难以对WIF1信号强度(RSS)的无线分布图(RM)准确估计建模,导致基于RSS分布模型的WIFI室内定位方法精度无法有效提高的问题,提出多模自适应的WIFI无线图构建与定位方法.创建多项式RSS分布模型并与多种电波室内传播模型结合构成多模候选集,通过最小二乘法计算各模型参数的最优无偏估计值,以模型预测残差为依据自动选择最佳分布模型构建无线图并用于定位.实验表明该方法能更准确估计出WIFI信号的室内分布情况,有效提高WIFI室内定位精度.
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