The application of a maximum likelihood estimator to flight data is discussed and procedures to facilitate routine analysis of a large amount of flight data are proposed. Flight data were used to demonstrate the proposed procedures. Modeling considerations are discussed for the system to be identified, including linear aerodynamics, instrumentation, and data time shifts, and aerodynamic biases for the specific types of maneuvers to be analyzed. Data editing to eliminate common data acquisition problems, and a method of identifying other problems are considered. The need for careful selection of the maneuver or portions of the maneuver to be analyzed is pointed out. Uncertaintly levels (analogous to Cramer-Rao bounds) are discussed as a way of recognizing significant new information.


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    Title :

    Practical aspects of using a maximum likelihood estimator


    Contributors:
    Iliff, K. W. (author) / Maine, R. E. (author)


    Publication date :

    1975-05-01


    Type of media :

    Conference paper


    Type of material :

    No indication


    Language :

    English






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