Title :
Selection of Frequency for Near Field Electromagnetic Ranging (NFER) Based on its Cramer–Rao Bound
Author :
Kim, Chee Wee ; Chin, F.P.S. ; Garg, H.K.
Author_Institution :
Nat. Univ. of Singapore, Singapore
Abstract :
The Cramer-Rao bounds (CRBs) of near field electromagnetic ranging (NFER) are derived for the cases of ranging and 2-D localization. From the derived CRBs, it is shown that the accuracies are dependent on the true location and frequency used, in addition to the signal-to-noise ratio. Ulitizing the derived bound for 2-D localization, the selection of frequency can be made to achieve the best average accuracy in different area sizes.
Keywords :
distance measurement; electric fields; magnetic fields; 2D localization; Cramer Rao bound; near field electromagnetic ranging; Cramer–Rao bound (CRB); Cramer-Rao bound (CRB); localization; near field; ranging;
Journal_Title :
Signal Processing Letters, IEEE
DOI :
10.1109/LSP.2007.903274
