﻿ 基于最速下降法的室内定位技术研究 Research on Steepest Descent Method Based Indoor Location Estimation Technology

Optoelectronics
Vol.07 No.01(2017), Article ID:20058,6 pages
10.12677/OE.2017.71005

Research on Steepest Descent Method Based Indoor Location Estimation Technology

Haibo Huang1*, Rong Zhou2, Wenrui Wang2, Wei Song2, Longbin Tian2

1Tongda College of Nanjing University of Posts and Telecommunications, Yangzhou Jiangsu

2Nanjing University of Posts and Telecommunications, Nanjing Jiangsu

Received: Mar. 12th, 2017; accepted: Mar. 28th, 2017; published: Mar. 31th, 2017

ABSTRACT

1南京邮电大学通达学院，江苏 扬州

2南京邮电大学，江苏 南京

1. 引言

2. 主要算法

2.1. 对数正态阴影衰落模型

(1)

(2)

2.2. 三边定位算法

(3)

(4)

(5)

Figure 1. Sketch map of trilateral localization algorithm

，用三边定位算法估计出D点的坐标，即，

(6)

2.3. 最速下降法

(7)

(8)

(9)

3. 实验与结果分析

Table 1. Experimental data sheet

Figure 2. A = −42, n = 2.5 error comparison

Figure 3. A = −42, n = 2 error comparison

4. 结论

Research on Steepest Descent Method Based Indoor Location Estimation Technology[J]. 光电子, 2017, 07(01): 28-33. http://dx.doi.org/10.12677/OE.2017.71005

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*通讯作者。