| Statistical Model on the Time and Time Difference Error of Arrival in TDOA Location Estimation |
| |
| 引用本文： | ZHANG Zhi-liang,SUN Di-hu,ZHANG Xing-xia. Statistical Model on the Time and Time Difference Error of Arrival in TDOA Location Estimation[J]. 保鲜与加工, 2006, 0(1): 85-88 |
| |
| 作者姓名： | ZHANG Zhi-liang SUN Di-hu ZHANG Xing-xia |
| |
| 作者单位： | College of Automation, Chongqing University, Chongqing 400030, China |
| |
| 摘 要： | Additional time delay of arrival resulted from non-line of sight(NLOS)propagation and muti-path effect in(cellular) environment is the dominant factor resulting in TDOA location error,study on the statistical property of TDOA error is useful for improving the accuracy of TDOA location.Based on the exponential distribution property of NLOS propagation delay,and considering the system error resulted from the signal detection,the authors establish a statistical model of arrival time and a model of TDOA error distribution by statistics when non-light of sight and multi-path propagation exist.The models reflect the statistical property of arrival time and TDOA error in cell network,the simulation shows that the proposed models have a good accuracy and a satisfactory behavior.
|
| 关 键 词： | TDOA model of error distribution non-light of sight propagation multi-path effect |
| 收稿时间： | 2005-08-26 |
| 修稿时间： | 2005-08-26 |
Statistical Model on the Time and Time Difference Error of Arrival in TDOA Location Estimation |
| |
| ZHANG Zhi-liang,SUN Di-hu,ZHANG Xing-xia. Statistical Model on the Time and Time Difference Error of Arrival in TDOA Location Estimation[J]. Storage & Process, 2006, 0(1): 85-88 |
| |
| Authors: | ZHANG Zhi-liang SUN Di-hu ZHANG Xing-xia |
| |
| Affiliation: | College of Automation, Chongqing University, Chongqing 400030, China |
| |
| Abstract: | Additional time delay of arrival resulted from non-line of sight(NLOS)propagation and muti-path effect in(cellular) environment is the dominant factor resulting in TDOA location error,study on the statistical property of TDOA error is useful for improving the accuracy of TDOA location.Based on the exponential distribution property of NLOS propagation delay,and considering the system error resulted from the signal detection,the authors establish a statistical model of arrival time and a model of TDOA error distribution by statistics when non-light of sight and multi-path propagation exist.The models reflect the statistical property of arrival time and TDOA error in cell network,the simulation shows that the proposed models have a good accuracy and a satisfactory behavior. |
| |
| Keywords: | TDOA model of error distribution non-light of sight propagation multi-path effect |
|
| 点击此处可从《保鲜与加工》浏览原始摘要信息 |
|
点击此处可从《保鲜与加工》下载全文 |
