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BOOK EXCERPT:
The radio refractive index can be measured either directly or indirectly. The former method is utilized by radio frequency refractometers; the latter method involves measurement of temperature, pressure and humidity and conversion to refractive index. In terms of convenience and accuracy the direct method is superior; however, lack of the universal use of refractometers requires the use of weather service type of data for the bulk of refractive index structures. Meteorological sensing is limited mainly by the inaccuracy in measuring humidity which under ideal conditions appears to limit the accuracy to 1.0 N. Gradient measurements utilizing radiosondes reflects an accuracy no better than £ 3 N units. Radio frequency refractometers are capable of accuracies as much as an order of magnitude better than that achieved by meteorological sensors. Lightweight refractometers have been devised for balloon-borne and dropsonde measurements reflecting accuracies inferior to the conventional refractometer but superior to the radiosonde.
Product Details :
Genre |
: Radio meteorology |
Author |
: R. E. McGavin |
Publisher |
: |
Release |
: 1962 |
File |
: 48 Pages |
ISBN-13 |
: PSU:000071843667 |
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Product Details :
Genre |
: Ionospheric radio wave propagation |
Author |
: United States. National Bureau of Standards |
Publisher |
: |
Release |
: 1959-07 |
File |
: 476 Pages |
ISBN-13 |
: UCAL:B3515577 |
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BOOK EXCERPT:
Product Details :
Genre |
: Engineering |
Author |
: |
Publisher |
: |
Release |
: 1965 |
File |
: 712 Pages |
ISBN-13 |
: CUB:U183019848651 |
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BOOK EXCERPT:
Product Details :
Genre |
: Physical instruments |
Author |
: |
Publisher |
: |
Release |
: 1965-04 |
File |
: 352 Pages |
ISBN-13 |
: MINN:30000010268633 |
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BOOK EXCERPT:
A collection of titles and abstracts is presented for articles dealing with the microwave fading that has been observed on tropospheric line of sight paths.Selections are included for related subjects such as:measurement of meteorological factors; spatial, frequency * and time diversity reception; and attenuation due to trees and buildings.Also included is a subject index and an author index.(Author).
Product Details :
Genre |
: Microwave communication systems |
Author |
: Harold T. Dougherty |
Publisher |
: |
Release |
: 1964 |
File |
: 122 Pages |
ISBN-13 |
: UOM:39015086570200 |
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BOOK EXCERPT:
Product Details :
Genre |
: Chemistry |
Author |
: United States. National Bureau of Standards |
Publisher |
: |
Release |
: 1963 |
File |
: 700 Pages |
ISBN-13 |
: UOM:39015082418784 |
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BOOK EXCERPT:
Product Details :
Genre |
: Government publications |
Author |
: |
Publisher |
: |
Release |
: 1960-07 |
File |
: 48 Pages |
ISBN-13 |
: MINN:31951D03863547M |
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BOOK EXCERPT:
Product Details :
Genre |
: Physics |
Author |
: United States. National Bureau of Standards |
Publisher |
: |
Release |
: 1960 |
File |
: 48 Pages |
ISBN-13 |
: OSU:32435063947527 |
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BOOK EXCERPT:
Product Details :
Genre |
: United States |
Author |
: United States. Superintendent of Documents |
Publisher |
: |
Release |
: 1980 |
File |
: 1284 Pages |
ISBN-13 |
: STANFORD:36105022657519 |
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BOOK EXCERPT:
Product Details :
Genre |
: Aeronautics |
Author |
: |
Publisher |
: |
Release |
: 1995 |
File |
: 704 Pages |
ISBN-13 |
: UIUC:30112050127304 |