Results 61 to 70 of about 4,191 (134)

Cramér-Rao bound-informed training of neural networks for quantitative MRI. [PDF]

Magn Reson Med, 2022
Zhang X, Duchemin Q, Liu K, Gultekin C, Flassbeck S, Fernandez-Granda C, Assländer J.   +6 more
europepmc   +1 more source

Robust and bias-free localization of individual fixed dipole emitters achieving the Cramér Rao bound for applications in cryo-single molecule localization microscopy. [PDF]

PLoS One, 2022
Hinterer F, Schneider MC, Hubmer S, López-Martinez M, Zelger P, Jesacher A, Ramlau R, Schütz GJ.   +7 more
europepmc   +1 more source

Coherent parameters estimation and coherent performance analysis for distributed aperture coherent radar

Tongxin xuebao, 2015
The closed-form CRB (cramer-rao bounds) of the coherent parameters estimation, which include time delay differences and total phase differences, are derived for the distributed aperture coherent radar with general architecture firstly.
Jing SONG, Jian-yun ZHANG, Wen-gang ZHANG   +2 more
doaj   +2 more sources

Blind SNR estimation based on cyclostationarity

Tongxin xuebao, 2006
Upsampling and shaping filtering introduce the cyclostationarity of transmit signals. Based on the cyclosta-tionary statistics of signals, a blind SNR estimator in AWGN channel was proposed.
HUA Meng, ZHU Jin-kang, GONG Ming
doaj   +2 more sources

Existence of unbiased estimators in discrete quantum systems

Physical Review Research
The Cramér-Rao bound serves as a crucial lower limit for the mean square error of an estimator in frequentist parameter estimation. Paradoxically, it requires highly accurate prior knowledge of the estimated parameter for constructing the optimal ...
Javier Navarro, Ricard Ravell Rodríguez, Mikel Sanz   +2 more
doaj   +1 more source

Cramér–Rao Lower Bound for Magnetic Field Localization around Elementary Structures

Sensors
The determination of a mobile terminal’s position with high accuracy and ubiquitous coverage is still challenging. Global satellite navigation systems (GNSSs) provide sufficient accuracy in areas with a clear view to the sky. For GNSS-denied environments
Armin Dammann, Benjamin Siebler, Stephan Sand   +2 more
doaj   +1 more source

Optimal sensing on an asymmetric exceptional surface

Physical Review Research
We study the connection between exceptional points (EPs) and optimal parameter estimation, in a simple system consisting of two counterpropagating traveling wave modes in a microring resonator.
Robert L. Cook, Liwen Ko, K. Birgitta Whaley   +2 more
doaj   +1 more source

Saturating the one-axis twisting quantum Cramér-Rao bound with a total spin readout

Journal of Physics Communications
We show that the lowest quantum Cramér-Rao bound achievable in interferometry with a one-axis twisted spin coherent state is saturated by the asymptotic method of moments error of a protocol that uses one call to the one-axis twisting, one call to time ...
T J Volkoff, Michael J Martin
doaj   +1 more source

Hybrid Cramér-Rao bound of direction finding, using a triad of cardioid sensors that are perpendicularly oriented and spatially collocated. [PDF]

J Acoust Soc Am, 2019
Kitavi DM, Wong KT, Lin TC, Wu YI.
europepmc   +1 more source

Optimal Experiment Design for Magnetic Resonance Fingerprinting: Cramér-Rao Bound Meets Spin Dynamics. [PDF]

IEEE Trans Med Imaging, 2019
Bo Zhao, Haldar JP, Congyu Liao, Dan Ma, Yun Jiang, Griswold MA, Setsompop K, Wald LL.   +7 more
europepmc   +1 more source