Improving Source Localization in LOS and NLOS Multipath Environments for UWB Signals

Publish Year: 1388
نوع سند: مقاله کنفرانسی
زبان: English
View: 2,164

This Paper With 7 Page And PDF Format Ready To Download

  • Certificate
  • من نویسنده این مقاله هستم

استخراج به نرم افزارهای پژوهشی:

لینک ثابت به این Paper:

شناسه ملی سند علمی:

CSICC14_101

تاریخ نمایه سازی: 24 خرداد 1388

Abstract:

The presence of undetected direct path conditions in the TOA (Time of Arrival)-based indoor geolocation introduces major errors into distance measurements. In the proposed location estimation, an improved procedure is introduced in Ultra-wideband (UWB) systems in Line of Sight (LOS) and Non-Line of Sight (NLOS) multipath environments by incorporating the skewness as new statistic information of multipath channel. Weighted least square error (WLS) algorithm is used to estimate source position in this paper. Simulation results show effectiveness of the proposed algorithm, by reducing source localization error. Uncertainty region between NLOS and LOS identification is reduced in the proposed method compared to previous methods..

Authors

Arash Abbasi

Electrical Engineering Department Iran University of Science & Technology Tehran, Iran

Mohammad Hossein Kahaei

Electrical Engineering Department Iran University of Science & Technology Tehran, Iran