Ziv‐Zakai Bound for Direct Position Estimation
Ziv‐Zakai Bound for Direct Position Estimation
复制标题
ZivâZakai Bound 用于直接位置估计
DOI:
10.1002/navi.259
复制
发表时间:
2018
期刊:
影响因子:
--
通讯作者:
Vandendorpe, Luc
中科院分区:
文献类型:
--
作者:
Gusi‐Amigó, Adrià;Closas, Pau;Mallat, Achraf;Vandendorpe, Luc
Direct position estimation (DPE) has arisen as an appealing alternative to the conventional two‐step positioning (2SP) approach. The usual metric to assess the performance of estimators is the Cramér‐Rao Bound (CRB). However, the CRB is only accurate in the high signal‐to‐noise ratio (SNR) region. In the lower SNR regions, high estimation errors take place and the variance of the estimates approach thea prioridomain of the parameter. The DPE approach is expected to overcome the 2SP approach in such conditions. With the objective of throwing light on this aspect, this paper shows the derivation of an approximate Ziv‐Zakai Bound (ZZB) for the DPE approach and a mean square error (MSE) performance approximation based on the ZZB for the conventional approach. The derived bounds are compared with their associated CRBs and also with the performance of the corresponding maximum likelihood estimator (MLE). © 2018 Institute of Navigation.
DOI:
10.1109/icassp.1996.550148
发表时间:
1996-05
期刊:
1996 IEEE International Conference on Acoustics, Speech, and Signal Processing Conference Proceedings
影响因子:
--
作者:
K. Bell;Y. Ephraim;H. V. Trees
通讯作者:
K. Bell;Y. Ephraim;H. V. Trees
影响因子:
5.4
作者:
A. Mallat;S. Gezici;D. Dardari;C. Craeye;L. Vandendorpe
通讯作者:
L. Vandendorpe
DOI:
--
发表时间:
2013
期刊:
International Conference on Ubiquitous Wireless Broadband
影响因子:
--
作者:
M. Navarro;P. Closas;M. Nájar
通讯作者:
M. Nájar