Published July 3, 1970
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The study and development of an energy spectral density analyzer
Description
A Fourier transformer has been designed and developed. This device computes the Fourier transform of a function, it's principal application is to compute in real time spectral densities by correlation function transformation. This transformation is performed on correlation functions of discrete values (for example 200 or 1000 points). A theoretical study including digital computer simulation is presented. Conclusions on the concept and the utilisation of the device are drawn, in particular it is demonstrated that a discrete treatment does not affect, in any respect, the precision of the computation. A detailed description of the operating characteristics of the instrument is given, together with many experimental results. (author)
Abstract (French)
L'appareil realise calcule la transformee de Fourier d'une fonction, sa principale application est le calcul en temps reel des densites spectrales par transformation de fonctions de correlation, la transformation se fait a partir de fonctions de correlations discretes (par exemple 200 ou 1000 points). Une etude theorique comportant des simulations sur ordinateur est exposee, elle permet de tirer des conclusions sur la conception et l'utilisation de l'appareil, en particulier il est demontre que le traitement discret n'affecte en aucun cas la precision du calcul. Une description detaillee du fonctionnement de l'appareil est donnee, ainsi qu'un ensemble de resultats experimentaux. (auteur)Files
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Additional details
Additional titles
- Original title (French)
- Etude et realisation d'un analyseur de densite spectrale energetique
Identifiers
Publishing Information
- Imprint Pagination
- 120 p.
- Report number
- CEA-R--4088
INIS
- Country of Publication
- France
- Country of Input or Organization
- France
- INIS RN
- 45084317
- Subject category
- S46: INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; S97: MATHEMATICAL METHODS AND COMPUTING;
- Resource subtype / Literary indicator
- Thesis
- Descriptors DEI
- ACCURACY; ALGORITHMS; CALCULATION METHODS; COMPUTERIZED SIMULATION; CORRELATION FUNCTIONS; ELECTRONIC EQUIPMENT; FOURIER TRANSFORMATION; REAL TIME SYSTEMS; SIGNAL CONDITIONING; SPECTRAL DENSITY
- Descriptors DEC
- EQUIPMENT; FUNCTIONS; INTEGRAL TRANSFORMATIONS; MATHEMATICAL LOGIC; SIMULATION; SPECTRAL FUNCTIONS; TRANSFORMATIONS
Optional Information
- Notes
- 14 refs.; Available from the INIS Liaison Officer for France, see the 'INIS contacts' section of the INIS website for current contact and E-mail addresses: http://www.iaea.org/inis/Contacts/