Application of Improved Dynamic RSSI Algorithm in WIFI Indoor Positioning

نویسندگان

  • Bing Su
  • Chong Wu
  • Hongyuan Wang
چکیده

The disadvantages for meaning filter and Kalman filter are that real-time culling and modified singular value can not be removed and achieved in WIFI indoor position. This paper proposes an improved dynamic RSSI signal processing method. In order to improve the accuracy of dynamic RSSI signal processing, this algorithm is based on average hop distance and improved method of generalized least squares measuring distance error correction that are used by the algorithm, and the revised RSSI value will be processed by weighted filtering method again. Simulation results show that the algorithm has high accuracy and the precision has been greatly enhanced after filtering ranging error. Copyright © 2014 IFSA Publishing, S. L.

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

RSSI-based Algorithm for Indoor Localization

Wireless node localization is one of the key technologies for wireless sensor networks. Outdoor localization can use GPS, AGPS (Assisted Global Positioning System) [6], but in buildings like supermarkets and underground parking, the accuracy of GPS and even AGPS will be greatly reduced. Since Indoor localization requests higher accuracy, using GPS or AGPS for indoor localization is not feasible...

متن کامل

D-Log: A WiFi Log-based differential scheme for enhanced indoor localization with single RSSI source and infrequent sampling rate

Currently, large amounts of Wi-Fi access logs are collected in diverse indoor environments, but cannot be widely used for fine-grained spatio-temporal analysis due to coarse positioning. We present a Log-based Differential (D-Log) scheme for post-hoc localization based on differentiated location estimates obtained from large-scale Access Point (AP) logs of WiFi connectivity traces, which can be...

متن کامل

The Optimal Positioning Algorithm Based on RSSI of WiFi

The positioning system based on RSSI is extremely affected by the multipath transmission medium, the signal transmission and shadow. Even changing the angle of the antenna is likely to affect the ranging accuracy. In order to solve the problems above, this paper proposes an indoor optimal positioning algorithm based on Wi-Fi signal strength. It introduces positioning evaluation function, using ...

متن کامل

Probability kernel regression for WiFi localisation

Various methods have been developed for indoor localisation using WLAN signals. Algorithms that fingerprint the Received Signal Strength Indication (RSSI) of WiFi for different locations can achieve tracking accuracies of the order of a few meters. RSSI fingerprinting suffers though from two main limitations: first, as the signal environment changes, so does the fingerprint database, which requ...

متن کامل

Localization based User Tracking Using RSSI Fingerprint

To provide an accurate location many location systems with different technologies such as Wi-Fi, Beacon, GPS, etc,. can be used for indoor localization. One of the Biggest Challenges in indoor localization system is to determine the actual indoor position of the user using smart device (Mobile Phone). To design and implement an indoor localization system based on Received Signal Strength Indica...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2014