减轻环境和终端差异影响的无线定位方法

doi:10.11959/j.issn.1000-0801.2020006

Abstract

Abstract:

Two optimization algorithms respectively were proposed according to the traditional two methods based on ranging and fingerprint-based to mitigate or circumvents the influence of environmental parameters on the position-ing results and compared traditional benchmark algorithms and recent similar work through simulation and actual scene experiments.The experimental results show the effectiveness of the algorithms:compared with the traditional benchmark algorithms,the positioning accuracy is improved by about 70%,compared with the recent similar work,the positioning accuracy is also improved by about 20%,at the same time,the change of the environmental parame-ters has little impact on the stability of the proposed algorithm.

Key words: wireless positioning, environment diveristy, fingerprint, wireless transmission model

CLC Number:

TP393

Jietai WANG,Youlian GUAN,Xiaoniu YANG,Zhenxing LUO,Jianbiao YU. Wireless positioning methods for mitigating the influence of environmental and terminal diversity[J]. Telecommunications Science, 2020, 36(1): 88-100.

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References 21

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环境	A/dBm	n
办公室	39.0~50.5	1.4~2.5
楼道走廊	35.0~38.2	1.9~2.5
巷子	44~48.7	2.1~3.0
公园	32.7~36.0	2.7~3.4
楼梯/阳台	33.5~44.2	1.4~2.4
海边沙滩	37.5~40.8	3.8~4.6
草地	33.2~36.4	3.0~3.9
竹林	35.2~38.2	4.5~5.4
石头墙	37.2~41.5	3.3~3.7
栅栏	34.5~38.2	4.6~5.1
大院子	34.2~39.0	2.8~3.8

算法	AOI识别成功率（全部）	AOI识别成功率（同型号终端）	AOI识别成功率（不同型号终端）	平均定位误差/m	平均定位时延/s
NRPA	非指纹方法未进行	非指纹方法未进行	非指纹方法未进行	3.62	1.32
Ratio＆Search	非指纹方法未进行	非指纹方法未进行	非指纹方法未进行	4.58	1.30
NFPA	91% （182/200）	95.7%（67/70）	88.5%（115/130）	3.79	1.72
HLF-Common	84.5% （169/200）	97.1%（68/70）	77.7%（101/130）	4.11	2.58

Wireless positioning methods for mitigating the influence of environmental and terminal diversity

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