Next: Historical Notes Up: The Chirplet Transform: Previous: The Chirplet Transform: . ... One of these TF methods, the short-time Fourier transform (STFT), has been used extensively for analyzing speech, music, and other non-stationary signals. ... Another time-frequency representation (which might more appropriately be called a time-scale representation) is the well-known wavelet transformheil-walnut,mallat:theory,daubechies:transform,strangwavelets. ... Historical Notes . ...

Program: TRANSFORM Purpose: Transform a (sub)set using rotation, scaling, translation etc. ... This set will be transformed to OUTSET=, using a concatenation of simple operations like rotation, scaling, translation etc. ... POS= Enter position of centre: [0,0] All operations are defined with respect to a central point. ... If, for example, you want to rotate an object about its centre, then determine the position of this centre (e.g. -6.2 8.5) and enter these numbers here (e.g. POS= -6.2 8.5). ...

Next: Examples of Wavelets Up: The Wavelet Transform Previous: Introduction . The Morlet-Grossmann definition of the continuous wavelet transform [ 17 ] for a 1D signal is: . where denotes the complex conjugate of z , is the analyzing wavelet, a ( >0 ) is the scale parameter and b is the position parameter. ... The last property makes the wavelet transform very suitable for analyzing hierarchical structures. ... Now consider a function which is the wavelet transform of a given function . ...

... Circle rotations. ... Symbolic dynamical systems: sequence spaces, Markov chains, adding machines. Birkhoff recurrence theorem. ... Tent map. ... Expanding maps of a circle. ... Topological entropy. ... Finiteness of entropy for Lipschitz self-maps. Entropy for symbolical dynamical systems. ... Entropy for one-dimensional maps. Entropy for expanding maps and the Misiurewicz-Przytycki theorem. ... Structural stability of expanding circle maps. ... SRB measures for expanding maps. ...

... Image formation is typically described as a linear process. ... where, for 2-dimensional systems, the object coordinates are and the image coordinates are . Such a general description of a linear system is termed shift-variant, because the shape of , the impulse response (or point spread function, PSF), might change as the object position, , is shifted. ... Hence, the exit pupil geometry changes with field position, so the system response changes with field position (i.e., is shift-variant). ...

... Previous: Implementation Design of the ASC Data Model . ... We describe a coordinate library for AXAF data analysis. The library handles transformations between celestial coordinates and instrumental (mirror, focal plane, detector pixel) coordinate systems. ... Pixlib library is intended to perform AXAF Science Center (ASC) coordinate system data analysis. ... At the present, the library affords more than 50 transformations among ~20 ASC coordinate systems. ... is zero matrix and I unit matrix. ...

... Introduction | ... Tail Probe is a spin-stabilized spacecraft spinning around the main axis of the maximum moment of inertia. ... To know the spacecraft attitude for a given time we use a matrix N to transform any vector V from the Geocentric Solar-Ecliptic ( GSE ) coordinate system to the Spacecraft Construction ( S/C ) coordinate system . ... X S axis is the spacecraft struclural axis which is close to the spin axis and to the main axis of the maximum moment of inertia X m , . ...

... Translate to: . ... 101) Байки из Фидо (7) Литература (16) Листая страницы прошлого Выберите месяц Апрель 2016 (2) Март 2016 (4) Февраль 2016 (4) Январь 2016 (5) Декабрь 2015 (4) Ноябрь 2015 (3) Октябрь 2015 (5) Сентябрь 2015 (5) Август 2015 (5) Июль 2015 (5) Июнь 2015 (4) Май 2015 (8) Апрель 2015 (5) Март 2015 (4) Февраль 2015 (4) Январь 2015 (7) Декабрь 2014 (7) Ноябрь 2014 (4) Октябрь 2014 (5) Сентябрь 2014 (8) Август 2014 (8) Июль 2014 (6) Июнь 2014 (7) Май 2014 (11) Апрель 2014 ...

SAI 175 anniversary . ... Moscow University . Search for in SAI Moscow University Search for in Russian astronomical resources . ... SAI Astronomical Databases . ... Browse SAI Software archive(ftp.sai.msu.su) . ASTRONET.RU - Russian Astronomical Network (available in translit also) . ... SAI Supernovae Research Group . ... Department of the Galaxy and Variable Stars (in Russian) . Sternberg Astronomical Institute Seminars . ... All-Russian Astronomical Olympiad (in Russian) . ...

XMM-Newton Science Analysis System . ... include changes in version 3.6.5 etc . Module name: coordinate . ... This module contains subroutines to perform a variety of coordinate transformations. Where possible the cal coordinate-transformation routines are used. The present subroutines have been designed to act as wrappers-of-convenience for one or more of the cal routines rather than to supplant them. ... XMM-Newton SOC/SSC -- 2007-07-08 ...

... To compare images from different instruments it is desirable for them to have the same scale and orientation. ... Use for shrinking. im> imlintran casa casa_m 0. 0. 2. 2. # input image casa.imh is shrunk factor of 2 # and result put in casa_m.imh . ... im> magnify casa casa_m 0.5 0.5. To shift, specify the old and new position of the image center. im> imlintran casa_m casa_mt 0. 0. 1. 1. xin=256 yin=256 xout = 276 yout=456 # moves the image casa_m 20 pixels to the right and 200 pixels up. ...

... The European HST Archive has been moved to ESA's European Space Astronomy Centre ( ESAC ), Spain, where most of ESA's Space Science Archives are located and operated from. ... The Space Telescope European Coordinating Facility (ST-ECF), jointly operated by ESA and the European Southern Observatory ( ESO ) was, until the end of 2010, the European HST science facility, supporting the European astronomy community in exploiting the research opportunities provided by the Hubble Space Telescope. ...

... This program was created for correlating chosen regions in the series of fts images. ... Chosen regions' . ... In this section the program counts the integral for each region of the grid for each image. ... As a matter of fact, the integral is total brightness of the region and it is counted by 'int_tabulated' IDL function. ... In addition, the program will show the count of the regions which correlate with the corresponding region (the brighter region means the bigger count) and its contour. ...

. Translations . Translations provided by Google Translate : . Franчaise traduction . Deutsche Њbersetzung . Espaеola Traducci?n . Italiana traduzione . Portuguese traduчуo . Japanese Translation . Chinese Translation . David Bishop Last modified: Mon Aug 27 12:47:19 EDT 2001

... program; Dell PCs: "Plug and Play Configuration Error", clarity on telling BIOS if your OS is PnP, "Intro to PnP" had truncated sentence, routing IRQs on PCI clarified, Change of emphasis in entire doc: Linux is now a PnP OS (sort of), PCI has almost replaced ISA v1.04 March 2002 finding a device driver, PCI serial ports, v1.04 March 2002 finding a device driver, PCI serial ports, alias example in modules.conf, PnP needed for linmodems v1.03 August 2001: error messages, boot-prompt parameters . ...

Subject of Astronomy. ... Celestial Sphere. ... Spherical Frames of Reference: Horisontal and Equatorial Coordinates, Ecliptical System. ... Transformation of Celestial Coordinates. ... Change of Object Coordinates as a Result of Diurnal Rotation of Celestial Sphere. Phenomenons, Which Lead to Celestial Coordinates Change. ... Motion of Equator, Ecliptic, and Their Poles. ... Diurnal Solar Motion on Different Latitudes. ... Time Equation. ... Apparent Motions and Configuration of Planets. ...

... VMS UNIX . display list of files DIRECTORY ls DIRECTORY /FULL ls -l display contents of file TYPE cat display file with pauses TYPE/PAGE more, less display first few lines of file head display last few lines of file tail copy file COPY cp find string in file SEARCH grep fgrep compare files DIFF diff cmp rename file RENAME mv delete file or directory DELETE rm rmdir change file protection ...

... Coordinate system . It is necessary to specify the coordinate system for the drilling of plug-plates so that the drilling file (currently named plPlugMap), plate drilling, cartridge, rotator wrap and the rotator itself are compatible. ... The TCC rotator angle (object system) is defined to be 0 degrees for this orientation. ... Thus, the rotator angle gives the conventional astronomical position angle on the sky of the y axis (although Russell won't acknowledge this necessarily). ...