Research on accurate ranging of UWB under indoor environments
The accurate ranging ability of ultra wideband（UWB） signal under IEEE 802.15.4a indoor channel model was studied.An improved time-of-arrival（TOA） estimation algorithm which utilizes region search and threshold comparison was proposed.By statistical analysis on certain characteristics of the CM1 and...
Saved in:
| Main Authors: | , |
|---|---|
| Format: | Article |
| Language: | zho |
| Published: |
Editorial Department of Journal on Communications
2007-01-01
|
| Series: | Tongxin xuebao |
| Subjects: | |
| Online Access: | http://www.joconline.com.cn/zh/article/74657788/ |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1841537480454569984 |
|---|---|
| author | WU Shao-hua ZHANG Nai-tong |
| author_facet | WU Shao-hua ZHANG Nai-tong |
| author_sort | WU Shao-hua |
| collection | DOAJ |
| description | The accurate ranging ability of ultra wideband（UWB） signal under IEEE 802.15.4a indoor channel model was studied.An improved time-of-arrival（TOA） estimation algorithm which utilizes region search and threshold comparison was proposed.By statistical analysis on certain characteristics of the CM1 and CM2 channel profiles,the probability model of TOA estimation error was deduced.The thresholds of the proposed TOA estimation algorithm were then set by limiting the error probability to the lowest level.The mean absolute ranging errors under different SNR were simulated.Results show that high enough SNR should be guaranteed in order to obtain centimeter-level ranging precision under in-door environments,while extremely high SNR would not help to improve the ranging precision any more but lead to a performance floor.The results have instructional significance on designing localization algorithms and transmission power control in practical ranging. |
| format | Article |
| id | doaj-art-a9d5409580b04b98acb95bb1fb2f0fae |
| institution | Kabale University |
| issn | 1000-436X |
| language | zho |
| publishDate | 2007-01-01 |
| publisher | Editorial Department of Journal on Communications |
| record_format | Article |
| series | Tongxin xuebao |
| spelling | doaj-art-a9d5409580b04b98acb95bb1fb2f0fae2025-01-14T08:36:05ZzhoEditorial Department of Journal on CommunicationsTongxin xuebao1000-436X2007-01-01657174657788Research on accurate ranging of UWB under indoor environmentsWU Shao-huaZHANG Nai-tongThe accurate ranging ability of ultra wideband（UWB） signal under IEEE 802.15.4a indoor channel model was studied.An improved time-of-arrival（TOA） estimation algorithm which utilizes region search and threshold comparison was proposed.By statistical analysis on certain characteristics of the CM1 and CM2 channel profiles,the probability model of TOA estimation error was deduced.The thresholds of the proposed TOA estimation algorithm were then set by limiting the error probability to the lowest level.The mean absolute ranging errors under different SNR were simulated.Results show that high enough SNR should be guaranteed in order to obtain centimeter-level ranging precision under in-door environments,while extremely high SNR would not help to improve the ranging precision any more but lead to a performance floor.The results have instructional significance on designing localization algorithms and transmission power control in practical ranging.http://www.joconline.com.cn/zh/article/74657788/ultra widebandrangingTOA estimationlocalization |
| spellingShingle | WU Shao-hua ZHANG Nai-tong Research on accurate ranging of UWB under indoor environments Tongxin xuebao ultra wideband ranging TOA estimation localization |
| title | Research on accurate ranging of UWB under indoor environments |
| title_full | Research on accurate ranging of UWB under indoor environments |
| title_fullStr | Research on accurate ranging of UWB under indoor environments |
| title_full_unstemmed | Research on accurate ranging of UWB under indoor environments |
| title_short | Research on accurate ranging of UWB under indoor environments |
| title_sort | research on accurate ranging of uwb under indoor environments |
| topic | ultra wideband ranging TOA estimation localization |
| url | http://www.joconline.com.cn/zh/article/74657788/ |
| work_keys_str_mv | AT wushaohua researchonaccuraterangingofuwbunderindoorenvironments AT zhangnaitong researchonaccuraterangingofuwbunderindoorenvironments |