Download or read book A System for the Spectrum Analysis of Geomagnetic Micropulsations written by Richard V. Wilson and published by . This book was released on 1960 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Apparatus for Dynamic Spectrum Analysis of Geomagnetic Pulsations written by Takeo Hirasawa and published by . This book was released on 1966 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book An Analysis of a PC 3 Micropulsation in the Geomagnetic Field written by Kurt B. Stevens and published by . This book was released on 1983 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Naval Postgraduate School has an ongoing effort to study geomagnetic noise and micropulsations in the ULF frequency range (.05

Download or read book Simultaneous Measurements and Spectral Analysis of Micropulsation Activity written by R. L. Komack and published by . This book was released on 1965 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1987 with total page 1126 pages. Available in PDF, EPUB and Kindle. Book excerpt: Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.

Download or read book Nuclear Science Abstracts written by and published by . This book was released on 1970 with total page 992 pages. Available in PDF, EPUB and Kindle. Book excerpt: NSA is a comprehensive collection of international nuclear science and technology literature for the period 1948 through 1976, pre-dating the prestigious INIS database, which began in 1970. NSA existed as a printed product (Volumes 1-33) initially, created by DOE's predecessor, the U.S. Atomic Energy Commission (AEC). NSA includes citations to scientific and technical reports from the AEC, the U.S. Energy Research and Development Administration and its contractors, plus other agencies and international organizations, universities, and industrial and research organizations. References to books, conference proceedings, papers, patents, dissertations, engineering drawings, and journal articles from worldwide sources are also included. Abstracts and full text are provided if available.

Download or read book Simultaneous Measurements and Spectral Analysis of Micropulsation Activity written by Roy L. Komack and published by . This book was released on 1965 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Earth current micropulsations were recorded simultaneously at Trinidad, Puerto Rico and Austin, Texas during the Fall of 1962. Signals were continuously recorded on paper chart in the frequency band .01 to 1.5 cps. The power spectra of the reduced data exhibit large peaks in the .01 to .07 region, normally considered the region of PC type activity. In this frequency region power spectra of data obtained simultaneously at the three locations are virtually identical, no variations with latitude or longitude are observed. Coherencies above .7 were consistently found between signals in the PC frequency region recorded more than 2,000 miles apart. The investigation of the directional properties of the resultant electric field vector illustrate the strong dependence of this vector on local geology. (Author).

Download or read book Speech Spectrum Analysis written by Sean A. Fulop and published by Springer Science & Business Media. This book was released on 2011-05-26 with total page 214 pages. Available in PDF, EPUB and Kindle. Book excerpt: The accurate determination of the speech spectrum, particularly for short frames, is commonly pursued in diverse areas including speech processing, recognition, and acoustic phonetics. With this book the author makes the subject of spectrum analysis understandable to a wide audience, including those with a solid background in general signal processing and those without such background. In keeping with these goals, this is not a book that replaces or attempts to cover the material found in a general signal processing textbook. Some essential signal processing concepts are presented in the first chapter, but even there the concepts are presented in a generally understandable fashion as far as is possible. Throughout the book, the focus is on applications to speech analysis; mathematical theory is provided for completeness, but these developments are set off in boxes for the benefit of those readers with sufficient background. Other readers may proceed through the main text, where the key results and applications will be presented in general heuristic terms, and illustrated with software routines and practical "show-and-tell" discussions of the results. At some points, the book refers to and uses the implementations in the Praat speech analysis software package, which has the advantages that it is used by many scientists around the world, and it is free and open source software. At other points, special software routines have been developed and made available to complement the book, and these are provided in the Matlab programming language. If the reader has the basic Matlab package, he/she will be able to immediately implement the programs in that platform---no extra "toolboxes" are required.

Download or read book NASA Thesaurus written by and published by . This book was released on 1988 with total page 884 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book A High Resolution Power Spectral Estimate written by Henry R. Radoski and published by . This book was released on 1974 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt: A new spectral estimate, the maximum entropy method, is described. In the maximum entropy method, the entropy change of a signal is maximized under the constraint that the autocorrelation function is the Fourier transform of the spectral power density. The problem reduces to specifying a unit-distance prediction error filter or, equivalently, a whitening filter. The spectral estimates are calculated in two ways: (1) by minimizing the error power to obtain the coefficients of the prediction error filter, as suggested by Burg and, (2) by a direct solution of the matrix equation using an algorithm due to Levinson. These results are compared with a modified Blackman-Tukey technique, calculated with a Hamming window. Applications of the maximum entropy method to geomagnetic micropulsations and to the annual sunspot number are shown. (Modified author abstract).

Download or read book U S Government Research Reports written by and published by . This book was released on 1964 with total page 1416 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Geophysical Abstracts written by and published by . This book was released on 1967 with total page 1436 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Publications of Goddard Space Flight Center written by Goddard Space Flight Center and published by . This book was released on with total page 1700 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Report of Ionosphere and Space Research in Japan written by and published by . This book was released on 1965 with total page 194 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Report of Ionosphere and Space Research in Japan written by Nihon Gakujutsu Kaigi. Denrisö Kenkyū Renraku Iinkai and published by . This book was released on 1971 with total page 462 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Geophysical Abstracts written by Geological Survey (U.S.) and published by . This book was released on 1967 with total page 1278 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Report of Ionosphere and Space Research written by Nihon Gakujutsu Kaigi. Ionosphere Research Committee and published by . This book was released on 1971 with total page 460 pages. Available in PDF, EPUB and Kindle. Book excerpt: