Search Results: 'Signal Propagation'

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7 results for "Signal Propagation"
Amateur Radio Electronics On Your Mobile By Clive W. Humphris
eBook (ePub): $3.35
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Amateur Radio Electronics on your Mobile eBook provides a handy portable reference and calculations guide aimed at more experienced or professional readers not wanting the traditional learning... More > reminder in the sister title (learning on your smartphone published by eptsoft) otherwise the overall content is similar and now available as an interactive Tablet and Smartphone App. See Additional Notes at the back of the book for instructions to download the accompanying interactive App which brings the 250+ topics to life by allowing you to insert your own values. Visually on a phone or tablet it looks almost identical to the eBook pages, except you can edit the inputs to update the graphics and hundreds of calculations to reflect those changes all redrawn to scale on your mobile device. There is also an optional comprehensive PC version to download with even more features both applications can be unlocked with your eBook purchase receipt for no additional charge. A combined eBook, App and PC educational package.< Less
Amateur Radio Electronics V10 Home Study By Clive W. Humphris
eBook (ePub): $3.34
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Amateur Radio Electronics V10 Home Study is now published as a portable, learning, reference and revision guide. Radio enthusiasts, students, trainers and hobbyists can have their own low-cost... More > portable version as an eBook, plus an interactive App for a tablet or smartphone, along with the existing hugely popular PC version software. For easy reading, a comprehensive contents list of hundreds of topics will be found each with a graphic image and explanatory text and calculations act as a useful exam revision reminder or reference tool for professionals. The accompanying app and software brings all these images to life by allowing the reader to input their own values which then updates the graphics. Both can be downloaded at no extra charge thereby providing an additional portable or computer based interactive learning resource as an easy and enjoyable way to study. Unlock both the App and accompanying software with your eBook receipt. See Additional Notes at the back of the eBook for download details.< Less
Learn Amateur Radio Electronics On Your Smartphone By Clive W. Humphris
eBook (ePub): $3.36
Download immediately.
Learn Amateur Radio Electronics on your Smartphone is now published as a portable, learning, reference and revision guide. Radio enthusiasts, students, trainers and hobbyists can have their own... More > low-cost portable version as an eBook, plus an interactive App for a tablet or smartphone, along with the existing hugely popular PC version software. See Additional Notes at the back of the book for instructions to download the accompanying interactive App which brings the 250+ topics to life by allowing you to insert your own values. Visually on a phone or tablet it looks almost identical to the eBook pages, except you can edit the inputs to update the graphics and calculations to reflect those changes. There is also an optional comprehensive PC version to download with even more features both applications can be unlocked with your eBook purchase receipt for no additional charge. A combined eBook, App and PC educational package at a tiny fraction of the previously published price.< Less
Channel Characterisation and System Design for Sub-Surface Communications By David Gibson
Paperback: List Price: $308.09 $77.02 | You Save: 75%
Ships in 3-5 business days.
Based on the author's PhD thesis, this book is a theoretical study of subterranean radio communication, with the focus on methods that depend primarily on the penetration of electromagnetic fields... More > through the ground. Through-the-earth communication using e-m fields - specifically magnetic induction - plays a role in search and rescue systems used in the mining industry. It is also used for borehole telemetry, pipeline location and by cavers and pot-holers. Chapters describe propagation, antennas, and the design of transmitters and receivers. A figure of merit - the specific aperture - is introduced as an aid to antenna design. A crucial aspect of all systems is the signal to noise ratio, for which the strategy of noise-matching is introduced. The design of a wide-band low-frequency sounder is described, for channel evaluation using a non-ideal binary sequence. A method of calculating the inverse of a generalised sequence is described, for which cross-correlation results in a system identification signal.< Less
Channel Characterisation and System Design for Sub-Surface Communications By David Gibson
eBook (PDF): $54.62
Download immediately.
Based on the author's PhD thesis, this book is a theoretical study of subterranean radio communication, with the focus on methods that depend primarily on the penetration of electromagnetic fields... More > through the ground. Through-the-earth communication using e-m fields - specifically magnetic induction - plays a role in search and rescue systems used in the mining industry. It is also used for borehole telemetry, pipeline location and by cavers and pot-holers. Chapters describe propagation, antennas, and the design of transmitters and receivers. A figure of merit - the specific aperture - is introduced as an aid to antenna design. A crucial aspect of all systems is the signal to noise ratio, for which the strategy of noise-matching is introduced. The design of a wide-band low-frequency sounder is described, for channel evaluation using a non-ideal binary sequence. A method of calculating the inverse of a generalised sequence is described, for which cross-correlation results in a system identification signal.< Less
Electronic Warfare & Radar Systems Engineering Handbook By Naval Air Warfare Center Weapons Division
Paperback: $65.95
Ships in 3-5 business days.
CONTENTS Mathematical Notation . Frequency Spectrum. Decibel (dB). Duty Cycle . Doppler Shift . Electronic Formulas . Missile and Electronic Equipment Designations. Radar Horizon / Line of Sight .... More > Propagation Time / Resolution . Modulation. Transforms / Wavelets. ANTENNAS- Antenna Introduction / Basics . Polarization. Radiation Patterns. Frequency / Phase Effects of Antennas . Antenna Near Field. Radiation Hazards. Active Electronically Scanned Arrays (AESA) . RADAR EQUATIONS Field Intensity and Power Density. Power Density . One-Way Radar Equation / RF Propagation. Two-Way Radar Equation (Monostatic) . Alternate Two-Way Radar Equation . Two-Way Radar Equation (Bistatic) . Jamming to Signal (J/S) Ratio - Constant Power [Saturated] Jamming. Burn-Through / Crossover Range. Support Jamming . Jamming to Signal (J/S) Ratio - Constant Gain [Linear] Jamming . Radar Cross Section (RCS) . Emission Control (EMCON) . EW Jamming Techniques . RADAR AND RECEIVER CHARACTERISTICS & TEST- RF Atmospheric Absorption...< Less
BioInformation Processing: A Primer On Cognitive Modeling Volume One By James Peterson
Hardcover: $59.95
Ships in 6-8 business days.
This book is a primer on how information is processed in a typical mammalian brain. To talk about these ideas intelligently, the reader needs to use ideas from mathematics, computer science and many... More > areas of science. Intertwining these normally separate areas into a coherent whole provides an introduction to modern interdisciplinary work. In the book, we develop carefully how an excitable neuron collects information from many sources and then outputs a single voltage pulse which carries a variety of signaling information. Our modeling efforts are based on the use of MatLab (although octave is just fine) so it should be easy to do experiments yourself. We cover the usual basics of axonal pulse propagation including Hodgkin-Huxley models, dendritic cable models, first and second messenger signalling system abstractions and so forth. This book provides a good foundation towards building models of cognition which may be used for models of depression and other forms of dysfunction.< Less