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A discrete cosine transform (DCT) expresses a finite sequence of data points in terms of a sum of cosine functions oscillating at different frequencies.The DCT, first proposed by Nasir Ahmed in 1972, is a widely used transformation technique in signal processing and data compression.
Flight operational quality assurance (FOQA, / ˈ f oʊ. k w ə /) also known as flight data monitoring (FDM) or flight data analysis, is a method of capturing, analyzing and/or visualizing the data generated by an aircraft moving from one point to another.
The main regulations that must be followed are the capturing and tracking of requirements throughout the design and verification process. The following items of substantiation are required to be provided to the FAA, or the Designated Engineering Representative (DER) representing the FAA: Plan for Hardware Aspects of Certification (PHAC)
A discourse-completion task consists of scripted dialogue representing various scenarios, preceded by a short prompt describing the setting and situation. [1] The prompt usually includes information on social distance between participants and pre-event background to help the participant construct the scenarios.
On a real project, the actual activities that will be done in the context of a process must be shown to support the objectives. These activities are defined by the project planners as part of the Planning process. This objective-based nature of DO-178C allows a great deal of flexibility in regard to following different styles of software life ...
Advanced Supersonic Transport (AST) model in wind tunnel. The aircraft design process is a loosely defined method used to balance many competing and demanding requirements to produce an aircraft that is strong, lightweight, economical and can carry an adequate payload while being sufficiently reliable to safely fly for the design life of the aircraft.
Comparative Analysis compares the function of the proposed part to the OAH part. As an example: If a PMA application for flight control cables were to show that the PMA part exceeds the pull strength requirements of the aircraft system it is meant for, that is general analysis. To show that it exceeds that of the OAH part is comparative analysis.
In the marketing field there is a huge literature about optimal design for multiattribute products and services, based on experimental analysis to estimate models of consumers' utility functions. These methods are known as Conjoint Analysis. Respondents are presented with alternative products, measuring preferences about the alternatives using ...