Sensors 2012, 12(4), 4730-4736; doi:10.3390/s120404730

Rao and Wald Tests for Nonhomogeneous Scenarios

1,* email, 2 and 1
Received: 12 March 2012; in revised form: 28 March 2012 / Accepted: 29 March 2012 / Published: 12 April 2012
(This article belongs to the Section Physical Sensors)
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Abstract: In this paper, we focus on the design of adaptive receivers for nonhomogeneous scenarios. More precisely, at the design stage we assume a mismatch between the covariance matrix of the noise in the cell under test and that of secondary data. Under the above assumption, we show that the Wald test is the adaptive matched filter, while the Rao test coincides with the receiver obtained by using the Rao test design criterion in homogeneous environment, hence providing a theoretical explanation of the enhanced selectivity of this receiver.
Keywords: nonhomogeneous scenarios; Rao test; Wald test; mismatch
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MDPI and ACS Style

Hao, C.; Orlando, D.; Hou, C. Rao and Wald Tests for Nonhomogeneous Scenarios. Sensors 2012, 12, 4730-4736.

AMA Style

Hao C, Orlando D, Hou C. Rao and Wald Tests for Nonhomogeneous Scenarios. Sensors. 2012; 12(4):4730-4736.

Chicago/Turabian Style

Hao, Chengpeng; Orlando, Danilo; Hou, Chaohuan. 2012. "Rao and Wald Tests for Nonhomogeneous Scenarios." Sensors 12, no. 4: 4730-4736.

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