Design and Deployment of a Portable, Pencil-Beam, Pulsed, 3-cm Doppler Radar
نویسندگان
چکیده
منابع مشابه
Radar Backscatter Measurement Accuracy for Spaceborne Scanning Pencil-beam Scatterometers
A radar scatterometer transmits a series of RF pulses and measures the total-power (energy) of the backscattered signal. Measurements of the backscattered energy from the ocean's surface can be used to infer the near-surface wind vector [7]. Accurate backscatter energy measurements are required to insure accurate wind estimates. Unfortunately, the signal measurement is noisy so a separate measu...
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Beam broadening effects on the Doppler radar spectrum induced by alongand cross-radar-beam winds are theoretically investigated in this article. Analytical expression of beam broadening spectrum for a vertical beam subject to a constant vertical wind in the absence of horizontal wind is derived first. We find that the resultant beam broadening spectral shape is in an exponential form, rather th...
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Type Ia supernovae (SNe Ia) can be calibrated to be good standard candles at cosmological distances. However, at z > ∼ 1, gravitational lensing leads to significant level of noise in a SN Hubble diagram. We propose a pencil beam survey of SNe Ia which would yield a significant number of SNe in redshift bins of 0.1 for z up to 2. The SN number count can provide a direct probe of cosmology which ...
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ژورنال
عنوان ژورنال: Journal of Atmospheric and Oceanic Technology
سال: 1997
ISSN: 0739-0572,1520-0426
DOI: 10.1175/1520-0426(1997)014<1502:dadoap>2.0.co;2