Accession Number : ADA205054


Title :   The Role of Interpretation and Diagnosis in Signal Processing


Descriptive Note : Rept. for 6 Jun -9 Jun 1988


Corporate Author : MASSACHUSETTS INST OF TECH CAMBRIDGE RESEARCH LAB OF ELECTRONICS


Personal Author(s) : Millios, Evangelos E ; Nawab, S H


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/a205054.pdf


Report Date : Jan 1988


Pagination or Media Count : 6


Abstract : A framework is proposed for adaptive signal processing that combines classical signal processing with adaptation criteria involving interpretation of the output signal and qualitative information about the classical signal processing itself. Interpretation of the output signal is achieved by expressing the signal at multiple levels of abstraction, capturing different levels of signal detail. A key aspect of the proposed framework is the computation of rich error descriptions by matching signal abstractions, as opposed to correlating numeric signals. Another key aspect is the encoding of qualitative information about the behavior of the classical signal processing component as processes that act upon reference signal abstractions and produce output signal abstractions. A search is then conducted for the most plausible processes that explain the differences between the reference output and the actual output of the system.


Descriptors :   *INFORMATION PROCESSING , *SIGNAL PROCESSING , SIGNALS , ADAPTIVE SYSTEMS , ADAPTATION , NUMBERS , MATCHING , CODING , OUTPUT , ERRORS


Subject Categories : Cybernetics


Distribution Statement : APPROVED FOR PUBLIC RELEASE