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872 results for "gibson"
Channel Characterisation and System Design for Sub-Surface Communications By David Gibson
eBook (PDF): $54.62
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
Cave Radiolocation By David Gibson
Paperback: $19.49
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This book is a collection of essays on radiolocation in caves, and related topics. Most of the articles have previously been published in the journal of the Cave Radio and Electronics Group, a... More > special interest group of the British Cave Research Association. The topic is approached from a theoretical point-of-view, studying the mechanism of propagation of the fields, and how their measurement can be used to provide a location tool for use in cave surveying. In addition, other peripheral topics are covered, such as channel sounding, electronic measurement of clinometer angle and the copyright of cave surveys.< Less
Channel Characterisation and System Design for Sub-Surface Communications By David Gibson
Paperback: List Price: $308.09 $77.02 | You Save: 75%
Prints 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
The Valley By Zachary Gibson
Paperback: $4.80
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Two Friends get trapped in a valley of mysteries and darkness, while four others try to find a safe route in, and save their friends from certain death.
Trial of the Incredible Force! By Bruce Gibson
eBook (PDF): $5.00
After defeating the Evil Empress the 3rd, the Incredible Force face a new challenge. The next empress in line files her complaint against the Incredible Force and uses the reptilian system against... More > them. It's a challenge they can not refuse, or else it be one Hell of a nightmare, for everyone.< Less
Trapped By Eleanor Gibson
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There are two sides to every story…. Dragons. Mythical, winged creatures. Supposedly breathe fire. Said to possess sorcerous properties in their body - most famously, their blood and horns.... More > Over their long lives, accumulate much wisdom. Humans Overgrown apes. Gain fire from weaponry and arms. Have evolved into a formidable, ever-growing civilisation. Their pride, greed and relative lack of wisdom causes incessant rivalry and conflict among themselves. Whose side are you on?< Less
The "Incredible" Force! By Bruce Gibson
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After being frozen for a half-century, nine women re-emerge into the world to resume life, until a freak accident leaves them to assume a new role. At the same time, visitors from beyond the stars... More > are also interested in planet Earth, but for the wrong reason; and these women have to find a way to rise up to help preserve the human way of life, before it's too late.< Less
"Forces," Rest In Peace! By Bruce Gibson
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Well, if you've read "Part One" of the Incredible Force, you know how they fared. Now, it's just a matter of time when their foes have to regroup and try again. This time, Empress O'Hella... More > II is out to avenge the death of her sister, and she isn't taking any prisoners. She executes her brilliant plan to destroy the planet Earth without having to invade it. But first, she has to get by the Incredible Force. And even if she does, will she succeed? It seems like the rest of the world is eager for an "upset," but they may have to shed some tears, if it'll do them any good. And then we'll see how this all ends. So, stay tuned for Part 2 of this battle between the "Forces" and the O'Hella's, in this Sci-fi thriller.< Less
"Forces," Rest In Peace - 2! By Bruce Gibson
Paperback: $12.47
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If you've read the last episode, “Forces, Rest In Peace,” Empress O’Hella the 2nd has made a brilliant effort to annihilate the entire Earth population, but didn't realize the... More > tables were turned against her. In spite of this “grave” error, the next evil sister steps in to “fill the shoes” of her predecessor and takes a different approach to eliminate the Incredible Force. And after bringing the court system into the picture, find out how this one pans out, when things takes a weird twist.< Less
When Evil Met The King! By Bruce Gibson
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The nine women clones make headlines, in a big way. But first, they find a way to team up with the Empress, and help her take advantage of a loophole in the reptilian law, which forbids her from... More > attacking the planet Earth. Unknown to the Incredible Force, “Evil Force” was able to lead them away long enough to help the Empress put forth their agenda to take over the planet, by pulling off an ingenious plan to cause the people’s worship to empower their mechanized ruler and weapon of ultimate disaster. However, when the stumbling “Forces” realize a worldwide plot is in play, they have to figure out a way to save themselves from “themselves,” while dethroning their evil twins and possibly facing the wrath of this so-called, “King Dan,” without causing the entire Earth population to succumb to the whim of the Evil Empress, and losing their lives in the process. < Less

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