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Optimum Binary Fsk For Transmitted Reference Systems Over Rayleigh Fading Channels
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Book Synopsis Optimum Binary FSK for Transmitted Reference Systems Over Rayleigh Fading Channels by : Neil J. Bershad
Download or read book Optimum Binary FSK for Transmitted Reference Systems Over Rayleigh Fading Channels written by Neil J. Bershad and published by . This book was released on 1965 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt: It is well known that in communicating over randomly time-varying channels, a receiver which performs a channel measurement can make a better decision than one that does not. It is shown that a channel-measuring system improves system performance even when the channel characteristics are fixed only during the present message interval. The randomly time-varying channel studied is that of a Rayleigh fading medium with independently fading mark and space channels whose fading is fixed over one baud interval but is independent from baud to baud. The transmission system is a modified frequency shift keying (FSK) system such that during a portion of a baud interval the mark and space frequencies are always transmitted so as to act as reference signals. For the above system, the following characteristics have been established: (a) Optimum receiver configuration, (b) Optimum ratio alpha of information energy to total signal energy as a function of total available signal-to-noise ratio for a single fading channel, (c) Asymptotic optimum alpha for an M-diversity channel, (d) Error probabilities for (b) and asymptotic error probabilities for (c) for alpha opt as a function of total signal-to-noise ratio. The asymptotic results show that by using reference techniques the order of diversity is effectively doubled. (Author).
Book Synopsis Optimum Binary FSK for Transmitted Reference Systems Over Rayleigh Fading Channels by : Neil J. Bershad
Download or read book Optimum Binary FSK for Transmitted Reference Systems Over Rayleigh Fading Channels written by Neil J. Bershad and published by . This book was released on 1965 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: It is well known that in communicating over randomly time-varying channels, a receiver which performs a channel measurement can make a better decision than one that does not. It is shown that a channel-measuring system improves system performance even when the channel characteristics are fixed only during the present message interval. The randomly time-varying channel studied is that of a Rayleigh fading medium with independently fading mark and space channels whose fading is fixed over one baud interval but is independent from baud to baud. The transmission system is a modified frequency shift keying (FSK) system such that during a portion of a baud interval the mark and space frequencies are always transmitted so as to act as reference signals. For the above system, the following characteristics have been established: (a) Optimum receiver configuration, (b) Optimum ratio alpha of information energy to total signal energy as a function of total available signal-to-noise ratio for a single fading channel, (c) Asymptotic optimum alpha for an M-diversity channel, (d) Error probabilities for (b) and asymptotic error probabilities for (c) for alpha opt as a function of total signal-to-noise ratio. The asymptotic results show that by using reference techniques the order of diversity is effectively doubled. (Author).
Book Synopsis Surface Waves at a Plane Interface Between Vacuum and Plasma with the Magnetostatic Field Normal to the Interface by : K. U. Sivaprasad
Download or read book Surface Waves at a Plane Interface Between Vacuum and Plasma with the Magnetostatic Field Normal to the Interface written by K. U. Sivaprasad and published by . This book was released on 1965 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Electron-impact Energy Spectra of Acetone and 2-Butanone by : S. M. Silverman
Download or read book Electron-impact Energy Spectra of Acetone and 2-Butanone written by S. M. Silverman and published by . This book was released on 1965 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Ozone Absorption in the 9.0 Micron Region by : Shepard Anthony Clough
Download or read book Ozone Absorption in the 9.0 Micron Region written by Shepard Anthony Clough and published by . This book was released on 1965 with total page 90 pages. Available in PDF, EPUB and Kindle. Book excerpt: The absorption of ozone in the 9.0 micron region of the infrared spectrum, due to transitions from the ground state to the v1 and v3 states, has been studied. This report gives the numerical results of an anlysis of the spectrum including transition frequencies and perturbed intensities ordered by quantum number and by frequency. Calculated and observed special contours are included.
Book Synopsis An Algorithm for the Deformation Method of Quadratic Programming by : Roger Even Bove
Download or read book An Algorithm for the Deformation Method of Quadratic Programming written by Roger Even Bove and published by . This book was released on 1965 with total page 118 pages. Available in PDF, EPUB and Kindle. Book excerpt: The following paper represents work to date on the deformation method for quadratic programming and thus may be regarded as a sequel to Zahl, S. (1964) A Deformation Method for Quadratic Programming, Research Note AFCRL-63-132. It gives an explanation of a modified Iverson programming language and uses this to give a detailed algorithm for the Zahl Deformation Method of Quadratic Programming.
Book Synopsis Improved Method for Quantum-mechanical Three-body Problems by : Leonard Eyges
Download or read book Improved Method for Quantum-mechanical Three-body Problems written by Leonard Eyges and published by . This book was released on 1965 with total page 18 pages. Available in PDF, EPUB and Kindle. Book excerpt: The quantum-mechanical ground-state problem for three identical particles bound by attractive inter-particle potentials is discussed. For this problem it has previously been shown that it is advantageous to write the wave function in a special functional form, form which an integral equation which is equivalent to the Schrodinger equation was derived. In this paper a new method for solving this equation is presented. The method involves an expansion of a two-body problem with a potential of the same shape as the inter-particle potential in the three-body problem, but of enhanced strength.
Book Synopsis A Discussion of the Wheeler-Feynman Absorber Theory of Radiation by : Ronald G. Newburgh
Download or read book A Discussion of the Wheeler-Feynman Absorber Theory of Radiation written by Ronald G. Newburgh and published by . This book was released on 1965 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Wheeler-Feynman absorber theory of radiation is reviewed. A proof is offered to show that a sum of advanced and retarded effects from the absorber can provide the origin of radiative reaction. This proof is different from and perhaps simpler than that of Wheeler and Feynman. From arguments of momentum and energy conservation the necessity of the absorber for the emission of radiation is demonstrated for three cases. (Author).
Book Synopsis Space Electricity by : R. C. Sagalyn
Download or read book Space Electricity written by R. C. Sagalyn and published by . This book was released on 1965 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Hydromagnetic Ionizing Waves by : Allen G. Rubin
Download or read book Hydromagnetic Ionizing Waves written by Allen G. Rubin and published by . This book was released on 1965 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt: A theory of hydromagnetic ionizing waves has been developed which is valid in the region in which gas pressure is negligible, compared with magnetic pressure. The theory takes into account the energy expended in partial ionization of the gas behind the wave. The usual high conductivity boundary condition behind the wave is not employed. The electric field in front of the wave is taken as a parameter. Results of this theory are compared with available experimental measurements, and show good agreement. (Author).
Book Synopsis Interaction Between Chlorophyll and Hydroquinone by : Eiji Fujimori
Download or read book Interaction Between Chlorophyll and Hydroquinone written by Eiji Fujimori and published by . This book was released on 1965 with total page 18 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Paraboloid Mirror by : Carlyle J. Sletten
Download or read book The Paraboloid Mirror written by Carlyle J. Sletten and published by . This book was released on 1965 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Phonon Generation by Stripe-domain Resonance in Permalloy Films by : Marden H. Seavey
Download or read book Phonon Generation by Stripe-domain Resonance in Permalloy Films written by Marden H. Seavey and published by . This book was released on 1965 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Theoretical and Numerical Determination of the Radar Cross Section of a Finite Cone by : F. V. Schultz
Download or read book The Theoretical and Numerical Determination of the Radar Cross Section of a Finite Cone written by F. V. Schultz and published by . This book was released on 1965 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this work, rigorous electromagnetic theory is used to determine the nose-on radar cross section of a perfectly conducting cone of finite height. The end cap of the cone is assumed to be a segment of a s spherical surface with center at the apex of the cone. Numerical results have been obtained for a cone having a total apex angle of 30 degrees and for values of [kappa alpha] ranging from 0.0259 to 5.18, where [kappa]=2 [pi]/[lambda] and [alpha] is the radius of the base of the cone. Siegel's Rayleigh method and by using Keller's modified geometrical optics as well as with experimental results obtained by Keys. The comparisons are instructive below [kappa alpha] = 3.2, the apparent upper limit of validity of the present results -- p.[3].
Book Synopsis Absorption Spectra of H2 in the Vacuum Ultraviolet Region by : Takeshi Namioka
Download or read book Absorption Spectra of H2 in the Vacuum Ultraviolet Region written by Takeshi Namioka and published by . This book was released on 1965 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Form of the Electron Distribution Function in a Time-varying Plasma by : Robert J. Papa
Download or read book Form of the Electron Distribution Function in a Time-varying Plasma written by Robert J. Papa and published by . This book was released on 1965 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Natural Sapphire is Now Being Re-constructed by : Kendrick N. Hemmenway
Download or read book Natural Sapphire is Now Being Re-constructed written by Kendrick N. Hemmenway and published by . This book was released on 1965 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt:
