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Author: Walter H. Lob Publisher: ISBN: Category : Languages : en Pages : 51
Book Description
Wind measurements taken during two storms in March 1967, using a dual-beam incoherent radar, are in good agreement with those obtained with a Doppler radar. During a third storm the dual-beam results fluctuated with apparent periods of the order of one to three minutes. A theory is developed to explain these fluctuations as the result of eddies of one third to one mile diameters and peripheral speeds of one quarter to one half. A limitation on range is derived for dual-beam wind measurement in cyclonic storms. Design criteria relating to PRF, wavelength, and antenna size for dual-beam wind-measuring radars are developed. (Author).
Author: Walter H. Lob Publisher: ISBN: Category : Languages : en Pages : 51
Book Description
Wind measurements taken during two storms in March 1967, using a dual-beam incoherent radar, are in good agreement with those obtained with a Doppler radar. During a third storm the dual-beam results fluctuated with apparent periods of the order of one to three minutes. A theory is developed to explain these fluctuations as the result of eddies of one third to one mile diameters and peripheral speeds of one quarter to one half. A limitation on range is derived for dual-beam wind measurement in cyclonic storms. Design criteria relating to PRF, wavelength, and antenna size for dual-beam wind-measuring radars are developed. (Author).
Author: Air Force Cambridge Research Laboratories (U.S.) Publisher: ISBN: Category : Astrophysics Languages : en Pages : 192
Book Description
This bibliography lists all in-house reports, journal articles, and contractor reports issued from 1 July 1966 to 30 September 1967. Part I lists all in-house reports by the series in which they were issued; Part II lists all in-house reports, journal articles, and contractor reports by the Laboratory responsible for their preparation. In Part I, the reports are listed numerically by series; in Part II, in-house reports and journal articles are listed alphabetically by author, and contractor reports are listed numerically by the AFCRL report number.
Author: Walter H. Lob Publisher: ISBN: Category : Languages : en Pages : 32
Book Description
The ideas of Atlas and Wexler on wind measurement using a dual-beam incoherent radar have been extended. An alternate theory for this measurement technique is presented. It is shown that the normalized Doppler spectrum can be obtained by convolving the normalized contamination spectrum (shifted by the radial component of the wind) with the normalized antenna pattern (stretched by the tangential component of the wind). This approach allows the following generalizations from the theory of Atlas and Wexler: The two beams need not be identical in shape and peak gain; The individual antenna patterns need not be Gaussian; The angle between the beams may be large; The volumes observed by the two beams need not have equal reflectivity and equal contamination variance. (Author).
Author: Walter H. Lob
Author: Walter H. Lob
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Author: David Atlas
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Author: Air Force Cambridge Research Laboratories (U.S.)
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Author: Walter H. Lob
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