摘要:

The paper focuses on a recently proposed coherent model for non-Gaussian clutter, which achieves a log-normal amplitude and a nearly uniform phase by means of a nonlinear (exponential) transformation of a complex Gaussian process with suitable correlation properties. Along with the relevant features, few drawbacks of the model are put forth, concerning the lack of symmetry and the nonstationarity of the associated bandpass process. A simple modification of the model, namely the addition of a uniform phase, is suggested which restores stationarity and symmetry while preserving its remaining features.

DOI:10.1049/ip-f-1.1987.0036

出版商:IEE    

年代:1987

数据来源: IET

摘要:

Decentralised tests appear in the context of information processing from distributed sensors. A decentralised test is composed of peripheral tests and a fusion rule. While the peripheral tests yield decisions at the individual sensors, the fusion rule operates on the peripheral decisions to provide the final decision. To find a most powerful decentralised test, i.e. one with maximal probability of detection subject to a given false alarm probability, the peripheral tests and fusion rule must be optimised simultaneously. For the case of two sensors deciding on independent observations, it is demonstrated that there is a most powerful decentralised test in which the fusion rule is either the AND or the OR rule.

DOI:10.1049/ip-f-1.1987.0038

出版商:IEE    

年代:1987

数据来源: IET