cross-correlation spectrum
31Pulse compression — is a signal processing technique mainly used in radar, sonar and echography to augment the range resolution as well as the signal to noise ratio. This is achieved by modulating the transmitted pulse and then correlating the received signal with… …
32Digital signal processing — (DSP) is concerned with the representation of discrete time signals by a sequence of numbers or symbols and the processing of these signals. Digital signal processing and analog signal processing are subfields of signal processing. DSP includes… …
33Sachs-Wolfe effect — The Sachs Wolfe effect [ [http://adsabs.harvard.edu/abs/1967ApJ...147...73S Perturbations of a Cosmological Model and Angular Variations of the Microwave Background ] Sachs R.K., Wolfe A.M., 1967, ApJ, 147, 73] , named after Rainer Kurt Sachs and …
34Fourier analysis — In mathematics, Fourier analysis is a subject area which grew out of the study of Fourier series. The subject began with trying to understand when it was possible to represent general functions by sums of simpler trigonometric functions. The… …
35Discrete-time Fourier transform — In mathematics, the discrete time Fourier transform (DTFT) is one of the specific forms of Fourier analysis. As such, it transforms one function into another, which is called the frequency domain representation, or simply the DTFT , of the… …
36HEAO-1 — (High Energy Astronomy Observatory) НАСА Организация …
37Gold code — A Gold code is a set of binary sequences, used in telecommunication (CDMA) [ [George, M., Hamid, M., and Miller A. PDFlink| [http://www.xilinx.com/support/documentation/application notes/xapp217.pdf Gold Code Generators in Virtex Devices] ] and… …
38Phase detector — A phase detector is a frequency mixer or analog multiplier circuit that generates a voltage signal which represents the difference in phase between two signal inputs. It is an essential element of the phase locked loop (PLL).Detecting phase… …
39Two-dimensional nuclear magnetic resonance spectroscopy — (2D NMR) is a set of nuclear magnetic resonance spectroscopy (NMR) methods which give data plotted in a space defined by two frequency axes rather than one. Types of 2D NMR include correlation spectroscopy (COSY), J spectroscopy, exchange… …
40cosmos — /koz meuhs, mohs/, n., pl. cosmos, cosmoses for 2, 4. 1. the world or universe regarded as an orderly, harmonious system. 2. a complete, orderly, harmonious system. 3. order; harmony. 4. any composite plant of the genus Cosmos, of tropical… …
