Wireless positioning in indoor multipath environment
Indoor wireless positioning technique is very popular in recent years, and a rapid growth of wireless positioning system has been witnessed in recent years. In this dissertation, we introduce time of arrival (TOA) estimation in multipath environment. To verify the accuracy and applicability of our p...
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| Other Authors: | |
| Format: | Thesis |
| Language: | English |
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2016
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| Online Access: | http://hdl.handle.net/10356/68975 |
| _version_ | 1811681917179789312 |
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| author | Cheng, Yanyu |
| author2 | School of Electrical and Electronic Engineering |
| author_facet | School of Electrical and Electronic Engineering Cheng, Yanyu |
| author_sort | Cheng, Yanyu |
| collection | NTU |
| description | Indoor wireless positioning technique is very popular in recent years, and a rapid growth of wireless positioning system has been witnessed in recent years. In this dissertation, we introduce time of arrival (TOA) estimation in multipath environment. To verify the accuracy and applicability of our proposed method, we conduct channel experiment in an indoor environment, the meeting room, for TOA estimation. Space Alternating Generalized Expectation Maximization (SAGE) algorithm is used to estimate TOA based on the data of channel measurement. We also analyze the results of TOA estimation by calculating the estimation error and variance.
Finally, TOA positioning algorithm is introduced including Weighted Least Square (WLS) algorithm and Full Search algorithm. For both algorithms, we do the simulation using four reference devices (RDs) and three RDs, and then analysis the results by calculating the mean error and variance for each algorithm using four RDs and three RDs, and drawing the cumulative distribution function (CDF) of error of each situation. |
| first_indexed | 2024-10-01T03:48:33Z |
| format | Thesis |
| id | ntu-10356/68975 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T03:48:33Z |
| publishDate | 2016 |
| record_format | dspace |
| spelling | ntu-10356/689752023-07-04T15:05:04Z Wireless positioning in indoor multipath environment Cheng, Yanyu School of Electrical and Electronic Engineering DRNTU::Engineering::Electrical and electronic engineering::Electronic systems::Signal processing Indoor wireless positioning technique is very popular in recent years, and a rapid growth of wireless positioning system has been witnessed in recent years. In this dissertation, we introduce time of arrival (TOA) estimation in multipath environment. To verify the accuracy and applicability of our proposed method, we conduct channel experiment in an indoor environment, the meeting room, for TOA estimation. Space Alternating Generalized Expectation Maximization (SAGE) algorithm is used to estimate TOA based on the data of channel measurement. We also analyze the results of TOA estimation by calculating the estimation error and variance. Finally, TOA positioning algorithm is introduced including Weighted Least Square (WLS) algorithm and Full Search algorithm. For both algorithms, we do the simulation using four reference devices (RDs) and three RDs, and then analysis the results by calculating the mean error and variance for each algorithm using four RDs and three RDs, and drawing the cumulative distribution function (CDF) of error of each situation. Master of Science (Signal Processing) 2016-08-22T02:01:02Z 2016-08-22T02:01:02Z 2016 Thesis http://hdl.handle.net/10356/68975 en 57 p. application/pdf |
| spellingShingle | DRNTU::Engineering::Electrical and electronic engineering::Electronic systems::Signal processing Cheng, Yanyu Wireless positioning in indoor multipath environment |
| title | Wireless positioning in indoor multipath environment |
| title_full | Wireless positioning in indoor multipath environment |
| title_fullStr | Wireless positioning in indoor multipath environment |
| title_full_unstemmed | Wireless positioning in indoor multipath environment |
| title_short | Wireless positioning in indoor multipath environment |
| title_sort | wireless positioning in indoor multipath environment |
| topic | DRNTU::Engineering::Electrical and electronic engineering::Electronic systems::Signal processing |
| url | http://hdl.handle.net/10356/68975 |
| work_keys_str_mv | AT chengyanyu wirelesspositioninginindoormultipathenvironment |