ISBN: 9781445769530

[ED: Taschenbuch], [PU: Lulu.com], 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 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. Versandfertig in 6-10 Tagen, DE, [SC: 0.00], Neuware, gewerbliches Angebot, Offene Rechnung (Vorkasse vorbehalten)

ISBN: 9781445769530

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 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. Trade Books>Trade Paperback>Science>Engineering>Engr Ref, Lulu.com Core >1

2010, ISBN: 9781445769530

lulu.com, Taschenbuch, 300 Seiten, Publiziert: 2010-06-13T00:00:01Z, Produktgruppe: Buch, 1.59 kg, Maschinenbau Allgemein, Ingenieurwissenschaft & Technik, Naturwissenschaften & Technik, Kategorien, Bücher, lulu.com, 2010

ISBN: 1445769530

Channel Characterisation and System Design for Sub-Surface Communications ab 282.49 € als Taschenbuch: . Aus dem Bereich: Bücher, Taschenbücher, Naturwissenschaft, Lulu.com

2010, ISBN: 1445769530

Kartoniert / Broschiert TECHNOLOGY & ENGINEERING / Engineering (General), mit Schutzumschlag neu, [PU:Lulu.com]