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残差加权
相关语句
  residual weighting
    Using Chan algorithm of TDOA location method in WLAN to estimate position of mobile terminal is proposed,then using residual weighting algorithm to the result of estimation in order to restrain NLOS error.
    提出在WLAN中使用TDOA定位方法的Chan算法对移动终端进行位置估计,然后对位置估计结果使用残差加权算法进行NLOS误差抑制。
短句来源
    Simulation shows that to select the time measurements which are free from the influence of NLOS as far as possible to participate in Chan algorithm and residual weighting algorithm,that can usually obtain relatively ideal location accuracy with smaller cost of calculation.
    通过仿真证明,尽可能选择不受NLOS影响的时间测量值参与Chan算法和残差加权算法,通常能以较小的计算代价取得相对理想的定位精度。
短句来源
    Then it uses Residual Weighting Algorithm to the result of estimation in order to restrain NLOS error.
    然后对位置估计结果使用残差加权算法进行NLOS误差抑制。
短句来源
    A Residual Weighting Algorithm to restrain much amount of NLOS error is proposed. Comparisions in the simulation show that this algorithm has better overall result to restrain much amount of NLOS error.
    提出了一种抑制多个NLOS误差的残差加权算法,通过仿真对比证明了该算法对多个NLOS误差具有更好的整体抑制效果。
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  residual weighting
The traditional approach involves dual residual weighting (DRW).
      
Finally, the number of elevation intervals was optimized given the selected distance and residual weighting parameters.
      


This thesis introduces the technical characteristics of WLAN and the principle of wireless location based on WLAN mobile terminal. Using Chan algorithm of TDOA location method in WLAN to estimate position of mobile terminal is proposed. Then Residual Weighting method is applied to the result of estimation in order to restrain NLOS error. A new definition of location residue is proposed. Comparisons in the simulation show that, according to this new definition to carry out Residual Weighting, it has relatively...

This thesis introduces the technical characteristics of WLAN and the principle of wireless location based on WLAN mobile terminal. Using Chan algorithm of TDOA location method in WLAN to estimate position of mobile terminal is proposed. Then Residual Weighting method is applied to the result of estimation in order to restrain NLOS error. A new definition of location residue is proposed. Comparisons in the simulation show that, according to this new definition to carry out Residual Weighting, it has relatively good overall restraining result when there are multiple NLOS errors. The′Average Location Accuracy Enhanced Percentage′(ALAEP) is proposed to assess the average performance of Residual Weighting method in restraining NLOS error.

介绍了WLAN的技术特点和基于WLAN移动终端的无线定位技术的原理,提出在WLAN中使用TDOA定位的Chan算法对移动终端进行位置估计,再使用残差加权方法进行非视距(NLOS)误差抑制,提出了新的定位残差定义方式,通过仿真证明了按该方式进行残差加权,在多个NLOS误差时具有较好的整体抑制效果,并提供采用“平均定位精度提高百分率”(ALAEP)来评定残差加权方法抑制NLOS误差的平均性能。

A new non-line-of-sight location algorithm based on TDOA for mobile station is developed in this paper. One of the advantages of this method is that no statistical models or prior information on NLOS channel condition are needed. Simulation and comparison of performance with other existing methods have shown the effectiveness of NLOS error mitigation in location estimate. Its good characteristics including low requirement, non-iteration, very low computational complexity make it easily available to apply to...

A new non-line-of-sight location algorithm based on TDOA for mobile station is developed in this paper. One of the advantages of this method is that no statistical models or prior information on NLOS channel condition are needed. Simulation and comparison of performance with other existing methods have shown the effectiveness of NLOS error mitigation in location estimate. Its good characteristics including low requirement, non-iteration, very low computational complexity make it easily available to apply to practice.

提出了一种不需要任何非视距传播测量值先验信息且具有解析表达式解、非递归的双曲线定位算法。通过一步简单残差加权得出一个与真实移动台位置比较接近的初始定位估计,利用该初始值构造了一个加权矩阵,进行两次加权最小二乘计算,得出了一个最后的定位结果。理论分析与目前流行定位算法的仿真结果比较表明,该定位算法能有效地抑制非视距传播误差的影响,计算量相当小。

Using Chan algorithm of TDOA location method in WLAN to estimate position of mobile terminal is proposed,then using residual weighting algorithm to the result of estimation in order to restrain NLOS error.Simulation shows that to select the time measurements which are free from the influence of NLOS as far as possible to participate in Chan algorithm and residual weighting algorithm,that can usually obtain relatively ideal location accuracy with smaller cost of calculation.And the mathematics theory proves that...

Using Chan algorithm of TDOA location method in WLAN to estimate position of mobile terminal is proposed,then using residual weighting algorithm to the result of estimation in order to restrain NLOS error.Simulation shows that to select the time measurements which are free from the influence of NLOS as far as possible to participate in Chan algorithm and residual weighting algorithm,that can usually obtain relatively ideal location accuracy with smaller cost of calculation.And the mathematics theory proves that can use the Wylie method to rank NLOS error for choosing the proper time measurements.

提出在WLAN中使用TDOA定位方法的Chan算法对移动终端进行位置估计,然后对位置估计结果使用残差加权算法进行NLOS误差抑制。通过仿真证明,尽可能选择不受NLOS影响的时间测量值参与Chan算法和残差加权算法,通常能以较小的计算代价取得相对理想的定位精度。并在数学理论上证明了可将Wylie方法用于NLOS误差排序,以挑选出合适的时间测量值。

 
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