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There are many valuable and useful books on electrical
communication (References 1-5 are some examples), but they have
certain disadvantages for the beginner. The more advanced books
present some things in a basic way, but they are very narrow for an
introduction to communica tion. The introductory books are broader
but still narrow by our stan dards. Further, they often pick things
out of thin air rather than derive them. This book is aimed at
giving the beginner a basic understanding of a wide range of topics
which are essential in communication systems. These include
antennas and transmission, thermal noise and its consequences,
Fourier transforms, modulation and noise, sampling and pulse code
modulation, autocorrelation and power spectrum, optimum filtering,
gauss ian noise and errors in digital transmission, data
transmission, limits on data rate including information theory and
quantum limits, and source encoding. We have not included
communications traffic, switching, and multiplexing, nor protocols
for digital and computer communications. For these, Reference 6 is
excellent. In general, our book does not discuss the circuits used
for communication or the physics of radio propagation. We assume
that these will be taught in specialized courses, but such courses
are not prerequisites for this one. Chapter 1 introduces the
transmission formula or antenna equation and antenna directivity.
Only a very basic sophomore physics knowledge of electromagnetic
theory is assumed. The radar equation is also treated."
There are many valuable and useful books on electrical
communication (References 1-5 are some examples), but they have
certain disadvantages for the beginner. The more advanced books
present some things in a basic way, but they are very narrow for an
introduction to communica tion. The introductory books are broader
but still narrow by our stan dards. Further, they often pick things
out of thin air rather than derive them. This book is aimed at
giving the beginner a basic understanding of a wide range of topics
which are essential in communication systems. These include
antennas and transmission, thermal noise and its consequences,
Fourier transforms, modulation and noise, sampling and pulse code
modulation, autocorrelation and power spectrum, optimum filtering,
gauss ian noise and errors in digital transmission, data
transmission, limits on data rate including information theory and
quantum limits, and source encoding. We have not included
communications traffic, switching, and multiplexing, nor protocols
for digital and computer communications. For these, Reference 6 is
excellent. In general, our book does not discuss the circuits used
for communication or the physics of radio propagation. We assume
that these will be taught in specialized courses, but such courses
are not prerequisites for this one. Chapter 1 introduces the
transmission formula or antenna equation and antenna directivity.
Only a very basic sophomore physics knowledge of electromagnetic
theory is assumed. The radar equation is also treated."
The end of a scourge
"The prayer that has been mine for twenty years, that I might be
permitted in some way or some time to do something to alleviate
human suffering, has been answered!"
--Major Walter Reed, writing to his wife, New Year's Eve, 1900
As he wrote to his wife of his stunning success in the mission
to identify the cause of yellow fever and find a way to eradicate
the disease, Walter Reed had answered the prayers of millions. For
more than 250 years, the yellow jack had ravaged the Americas,
bringing death to millions and striking panic in entire
populations. The very mention of its presence in a city or town
produced instant chaos as thousands fled in terror, leaving the
frail, the weak, and the ill to fend for themselves.
Yellow Jack tracks the history of this deadly scourge from its
earliest appearance in the Caribbean 350 years ago, telling the
compelling story of a few extraordinarily brave souls who struggled
to understand and eradicate yellow fever. Risking everything for
the cause of science and humanity, Reed and his teammates on the
U.S. Army Yellow Fever Board invaded the heart of enemy territory
in Cuba to pursue the disease--and made one of the twentieth
century's greatest medical discoveries. This thrilling adventure
tells the timeless tale of their courage, ingenuity, and triumph in
the face of adversity.
Second (1980) edition. "Uncommonly good...the most satisfying discussion to be found"-Scientific American. Covers encoding and binary digits, entropy, language and meaning, efficient encoding and the noisy channel, and explores ways in which information theory relates to physics, cybernetics, psychology and art.
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The Cid (Paperback)
Joseph Rutter, John R. Pierce; Edited by John R. Pierce
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R251
Discovery Miles 2 510
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Ships in 10 - 15 working days
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This text considers waves the great unifying concept of physics.
With minimal mathematics, it emphasizes the behavior common to
phenomena such as earthquake waves, ocean waves, sound waves, and
mechanical waves. Topics include velocity, vector and complex
representation, energy and momentum, coupled modes, polarization,
diffraction, and radiation. 1974 edition.
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