Cramer-rao bounds for FOA and TOA estimation from Galileo search and rescue signal

被引：0
|
作者：
Wang K. [1 ]
Wu S.-L. [1 ]
Han Y.-T. [1 ]
机构：
[1] Radar Technology Institute, Beijing Institute of Technology
来源：
Dianzi Yu Xinxi Xuebao/Journal of Electronics and Information Technology | 2011年 / 33卷 / 09期
关键词：
Cramer-Rao Bounds (CRBs); Frequency Of Arrival (FOA) and Time Of Arrival (TOA); Galileo Search And Rescue (SAR) signal; Message bit width; Signal processing;
D O I：
10.3724/SP.J.1146.2011.00017
中图分类号：
学科分类号：
摘要：
Considering the uncertainty of message bit width, the Cramer-Rao Bounds (CRBs) for Frequency Of Arrival (FOA) and Time Of Arrival (TOA) estimation from single Galileo Search And Rescue (SAR) signal are researched. Calculation expressions for the elements of Fisher information matrix of Galileo SAR signal are acquired. When calculating the sum of the square of dirac delta function, the properties of dirac delta function and Parseval's theorem are used to transform the computation from time-domain to frequency-domain, and the closed-form analytical solution of CRBs for FOA and TOA estimation are derived. Numerical calculation, Monte Carlo simulation and measurement results validate the effectiveness of the CRBs above which can be used to evaluate the performance of estimation algorithm for the parameters above.
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页码：2033 / 2038
页数：5
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