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https://doi.org/10.1109/WTS.2010.5479664
Title: | A time domain eigen value method for robust indoor localization | Authors: | Roshan, G.M. Godaliyadda, I. Garg, H.K. |
Keywords: | Indoor localization Location based fingerprinting Super resolution Time of arrival estimation Ultra-wideband |
Issue Date: | 2010 | Citation: | Roshan, G.M.,Godaliyadda, I.,Garg, H.K. (2010). A time domain eigen value method for robust indoor localization. 2010 Wireless Telecommunications Symposium, WTS 2010 : -. ScholarBank@NUS Repository. https://doi.org/10.1109/WTS.2010.5479664 | Abstract: | The hazardous nature of the indoor environment and the rapid growth of commercial indoor positioning systems have placed a significant emphasis on developing robust localization techniques. Our work focuses on developing super resolution techniques that can provide accurate time delay estimates under line-of-sight (LOS) conditions and generation of location information rich fingerprints that can be utilized for localization under non LOS conditions. First a detailed behavioral analysis of the subspace separation based super resolution algorithms is presented. Then we examine the newly introduced time domain eigen-value (TD-EV) method which effectively combines the time domain multiple signal classification (TD-MUSIC) and the frequency domain eigen-value (FD-EV) algorithms. This is done to secure the bandwidth versatility, superior path resolvability, and noise immunity of TD-MUSIC algorithm and FD-EV's ability to resurface underestimated local peaks submerged beneath the noise floor under constrained conditions. This makes TD-EV a prime candidate for accurate time delay estimation under severe multi-path and noise conditions prevalent in indoor environments. Additionally, these attributes provide a location information rich fingerprint from the resultant pseudo-spectrum output of our method for location based fingerprinting techniques. ©2010 IEEE. | Source Title: | 2010 Wireless Telecommunications Symposium, WTS 2010 | URI: | http://scholarbank.nus.edu.sg/handle/10635/69107 | ISBN: | 9781424465576 | DOI: | 10.1109/WTS.2010.5479664 |
Appears in Collections: | Staff Publications |
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