On Some Theorems For A Non Stationary Stochastic Process With A Continuous Non Random Time Dependent Component
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Shock and Vibration, Data Analysis and Applications
Author | : Defense Documentation Center (U.S.) |
Publisher | : |
Total Pages | : 62 |
Release | : 1963 |
Genre | : Electronic data processing |
ISBN | : |
Technical Abstract Bulletin
Author | : Defense Documentation Center (U.S.) |
Publisher | : |
Total Pages | : 1148 |
Release | : 1964 |
Genre | : Science |
ISBN | : |
Spectral Analysis of Nonstationary Spacecraft Vibration Data
Author | : Allan G. Piersol |
Publisher | : |
Total Pages | : 124 |
Release | : 1965 |
Genre | : Space vehicles |
ISBN | : |
This document is concerned with practical procedures for describing and analyzing the frequency composition of spacecraft launch vibration data. Since such data are generally nonstationary, conventional analysis techniques based upon time averaging individual sample records of data can produce misleading results. To help clarify the basic problems, the concept of stationary is reviewed, and theoretical methods for describing the frequency composition of nonstationary data are summarized. Both ensemble averaging and time averaging procedures are discussed with emphasis on the various errors associated with each approach. Experimental studies of actual spacecraft launch vibration data are then pursued to seek out typical or common trends which can be exploited to improve practical time averaging analysis procedures. Based upon the experimental studies as well as theoretical ideas, a specific procedure is recommended for the spectral analysis of nonstationary spacecraft vibration data, based upon time averaging short selected sample records of data.
Comparison of Power Spectral Density Techniques as Applied to Digitalized Data Records of Non-stationary Processes
Author | : George William Evans |
Publisher | : |
Total Pages | : 174 |
Release | : 1963 |
Genre | : Spectral theory (Mathematics) |
ISBN | : |
Spectral Analysis in Engineering
Author | : Grant Hearn |
Publisher | : Butterworth-Heinemann |
Total Pages | : 321 |
Release | : 1995-08-17 |
Genre | : Technology & Engineering |
ISBN | : 0080541550 |
This text provides a thorough explanation of the underlying principles of spectral analysis and the full range of estimation techniques used in engineering. The applications of these techniques are demonstrated in numerous case studies, illustrating the approach required and the compromises to be made when solving real engineering problems. The principles outlined in these case studies are applicable over the full range of engineering disciplines and all the reader requires is an understanding of elementary calculus and basic statistics. The realistic approach and comprehensive nature of this text will provide undergraduate engineers and physicists of all disciplines with an invaluable introduction to the subject and the detailed case studies will interest the experienced professional. - No more than a knowledge of elementary calculus, and basic statistics and probability is needed - Accessible to undergraduates at any stage of their courses - Easy and clear to follow
Anechoic and Reverberation Chambers
Author | : Qian Xu |
Publisher | : John Wiley & Sons |
Total Pages | : 400 |
Release | : 2019-01-04 |
Genre | : Science |
ISBN | : 1119361680 |
A comprehensive review of the recent advances in anechoic chamber and reverberation chamber designs and measurements Anechoic and Reverberation Chambers is a guide to the latest systematic solutions for designing anechoic chambers that rely on state-of-the-art computational electromagnetic algorithms. This essential resource contains a theoretical and practical understanding for electromagnetic compatibility and antenna testing. The solutions outlined optimise chamber performance in the structure, absorber layout and antenna positions whilst minimising the overall cost. The anechoic chamber designs are verified by measurement results from Microwave Vision Group that validate the accuracy of the solution. Anechoic and Reverberation Chambers fills this gap in the literature by providing a comprehensive reference to electromagnetic measurements, applications and over-the-air tests inside chambers. The expert contributors offer a summary of the latest developments in anechoic and reverberation chambers to help scientists and engineers apply the most recent technologies in the field. In addition, the book contains a comparison between reverberation and anechoic chambers and identifies their strengths and weaknesses. This important resource: • Provides a systematic solution for anechoic chamber design by using state-of-the-art computational electromagnetic algorithms • Examines both types of chamber in use: comparing and contrasting the advantages and disadvantages of each • Reviews typical over-the-air measurements and new applications in reverberation chambers • Offers a timely and complete reference written by authors working at the cutting edge of the technology • Contains helpful illustrations, photographs, practical examples and comparison between measurements and simulations Written for both academics and industrial engineers and designers, Anechoic and Reverberation Chambers explores the most recent advances in anechoic chamber and reverberation chamber designs and measurements.