TY - GEN
T1 - Distribution of the Fisher information loss due to random compressed sensing
AU - Pakrooh, Pooria
AU - Pezeshki, Ali
AU - Scharf, Louis L.
AU - Cochran, Douglas
AU - Howard, Stephen D.
N1 - Publisher Copyright: © 2015 IEEE.
PY - 2016/2/26
Y1 - 2016/2/26
N2 - In this work, we study the impact of compressive sampling with random matrices on Fisher information and the Cramér-Rao bound (CRB) for nonlinear parameter estimation in a complex multivariate normal measurement model. We consider the class of random compression matrices whose distribution is invariant to right-unitary transformations. For this class of random compression matrices, we show that the normalized Fisher information matrix after compression has a complex matrix-variate beta distribution, which is independent of the Fisher information matrix before compression and the values of the parameters. We also derive the distribution of CRB. Our results can be used to quantify the amount of loss in Fisher information and the increase in CRB due to random compression.
AB - In this work, we study the impact of compressive sampling with random matrices on Fisher information and the Cramér-Rao bound (CRB) for nonlinear parameter estimation in a complex multivariate normal measurement model. We consider the class of random compression matrices whose distribution is invariant to right-unitary transformations. For this class of random compression matrices, we show that the normalized Fisher information matrix after compression has a complex matrix-variate beta distribution, which is independent of the Fisher information matrix before compression and the values of the parameters. We also derive the distribution of CRB. Our results can be used to quantify the amount of loss in Fisher information and the increase in CRB due to random compression.
UR - http://www.scopus.com/inward/record.url?scp=84969785298&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84969785298&partnerID=8YFLogxK
U2 - 10.1109/ACSSC.2015.7421392
DO - 10.1109/ACSSC.2015.7421392
M3 - Conference contribution
T3 - Conference Record - Asilomar Conference on Signals, Systems and Computers
SP - 1487
EP - 1489
BT - Conference Record of the 49th Asilomar Conference on Signals, Systems and Computers, ACSSC 2015
A2 - Matthews, Michael B.
PB - IEEE Computer Society
T2 - 49th Asilomar Conference on Signals, Systems and Computers, ACSSC 2015
Y2 - 8 November 2015 through 11 November 2015
ER -