Search Results: 'noise temperature'

Search

×
×
×
×
8 results for "noise temperature"
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
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
Superconducting Microwave Resonator Arrays for Submillimeter/Far-Infrared Imaging By Omid Noroozian
Paperback: $42.47
Prints in 3-5 business days
Superconducting microwave resonators have the potential to revolutionize submillimeter and far-infrared astronomy, and with it our understanding of the universe. The field of low-temperature detector... More > technology has reached a point where extremely sensitive devices like transition-edge sensors are now capable of detecting radiation limited by the background noise of the universe. However, the size of these detector arrays are limited to only a few thousand pixels. In order to make substantial progress, next generation ground-based telescopes such as CCAT or future space telescopes require focal planes with large-scale detector arrays. This work documents an effort to demonstrate the basic operation of 256 pixel arrays of lumped-element MKIDs made from superconducting TiN on silicon.< Less
smart glass By mukial zhang
eBook (PDF): $0.00
.Transparent when power on, opaque when power off; freely switching; concise and convenient. 2. By spinning the voltage control button, change the light intensity and Infra Red Transmission... More > automatically according to the change temperature and lights outside the window, which can achieve the effect for fixing the temperature and light. It is of high UV resistance, environmental protection and health protection. 3.Double layer laminating technical, Of the high quality of safety glass, it is safe and firm, together with sound insulation, heat insulation and high noise resistance. 4.Various controlling ways: switch, light control, voice control, thermal control, remote control, remote network control, etc, custom made by customers require.< Less
The Blue Mule By David Heath
eBook (ePub): $8.99
This is a story of fiction but inspired by the love of trucking and simple rural farm life as it was in the 50s and 60s. A few hours east of Fort Stockton, Texas, Julie saw the sign indicating she... More > was still a long way from San Antonio. Her eyes felt tired. Several miles back, she had nodded off just a second, and it scared her so bad she almost went off the road into a rocky hillside. Second thoughts haunted her mind about the decision she had made to try for the Alamo city tonight. It was now 11:00 PM and the rain hadn't let up making the road almost impossible to see. She cranked up the heater as the outside temperature dropped considerably colder the further east she traveled. She picked up a Del Rio station on the radio and turned the volume up to keep the cab filled with noise. The country music eased her tired mind as the song play-ing was one of her favorites "yeah," she thought "that's me, Julie Dickinson with nothing but eighteen wheels under my seat and miles of highway ahead."< Less
The Blue Mule By David Heath
Paperback: List Price: $19.34 $15.47 | You Save: 20%
Prints in 3-5 business days
This is a story of fiction but inspired by the love of trucking and simple rural farm life as it was in the 50s and 60s. A few hours east of Fort Stockton, Texas, Julie saw the sign indicating she... More > was still a long way from San Antonio. Her eyes felt tired. Several miles back, she had nodded off just a second, and it scared her so bad she almost went off the road into a rocky hillside. Second thoughts haunted her mind about the decision she had made to try for the Alamo city tonight. It was now 11:00 PM and the rain hadn’t let up making the road almost impossible to see. She cranked up the heater as the outside temperature dropped considerably colder the further east she traveled. She picked up a Del Rio station on the radio and turned the volume up to keep the cab filled with noise. The country music eased her tired mind as the song play-ing was one of her favorites “yeah,” she thought “that’s me, Julie Dickinson with nothing but eighteen wheels under my seat and miles of highway ahead.”< Less
The Blue Mule By David Heath
Hardcover: $25.92
Prints in 3-5 business days
This is a story of fiction but inspired by the love of trucking and simple rural farm life as it was in the 50s and 60s. A few hours east of Fort Stockton, Texas, Julie saw the sign indicating she... More > was still a long way from San Antonio. Her eyes felt tired. Several miles back, she had nodded off just a second, and it scared her so bad she almost went off the road into a rocky hillside. Second thoughts haunted her mind about the decision she had made to try for the Alamo city tonight. It was now 11:00 PM and the rain hadn’t let up making the road almost impossible to see. She cranked up the heater as the outside temperature dropped considerably colder the further east she traveled. She picked up a Del Rio station on the radio and turned the volume up to keep the cab filled with noise. The country music eased her tired mind as the song play-ing was one of her favorites “yeah,” she thought “that’s me, Julie Dickinson with nothing but eighteen wheels under my seat and miles of highway ahead.”< Less
The Blue Mule By David Heath
eBook (PDF): $5.00
This is a story of fiction but inspired by the love of trucking and simple rural farm life as it was in the 50s and 60s. A few hours east of Fort Stockton, Texas, Julie saw the sign indicating she... More > was still a long way from San Antonio. Her eyes felt tired. Several miles back, she had nodded off just a second, and it scared her so bad she almost went off the road into a rocky hillside. Second thoughts haunted her mind about the decision she had made to try for the Alamo city tonight. It was now 11:00 PM and the rain hadn’t let up making the road almost impossible to see. She cranked up the heater as the outside temperature dropped considerably colder the further east she traveled. She picked up a Del Rio station on the radio and turned the volume up to keep the cab filled with noise. The country music eased her tired mind as the song play-ing was one of her favorites “yeah,” she thought “that’s me, Julie Dickinson with nothing but eighteen wheels under my seat and miles of highway ahead.”< Less