Cramer-Rao lower bound for non-coherent TOA estimation with Impulse Signal

被引：0
|
作者：
Liu, Jie [1 ]
Li, Xiaoji [1 ]
Zheng, Lin [1 ]
机构：
[1] Guilin Univ Elect Technol, Guilin 541004, Peoples R China
来源：
FIFTH INTERNATIONAL CONFERENCE ON INFORMATION ASSURANCE AND SECURITY, VOL 1, PROCEEDINGS | 2009年
关键词：
D O I：
10.1109/IAS.2009.205
中图分类号：
TP301 [理论、方法];
学科分类号：
081202 ;
摘要：
The non-coherent time-of-arrival (TOA) estimations are applied in impulse location for its simplicity. However, the multipath propagation of the narrow pulse results in complicated performance analysis. By fitting the output envelope of energy defection into a exponential decay, We approximately deduce the closed-form Cramer-Rao low bound (CRLB) of TOA estimation. Simulations with non-coherent TOA algorithms, such as threshold crossing (TC) and maximum energy selection (MES), validate the analysis. Furthermore, the integration window and multipath delay spread in ultra-wideband channel are considered to obtain a referable bound.
引用
收藏
页码：754 / 757
页数：4
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