Phase Scintillation Under Weak and Strong Scatter Conditions.
Abstract
Equatorial observations from the DNA Wideband satellite have been analyzed to: (1) characterize the two component phase spectral form, and (2) estimate the effects of diffraction on the phase spectrum during strong scatter conditions. The average two component phase spectrum has a low frequency dependence of 1/f to the 2.3 power, and 1/f to the 3.9 power at high frequencies. These regimes are separated by a spectral break at about 650m. For weak scatter levels up to S sub 4 > or = 0.5, diffraction errors are less than one radian, and phase spectral shape is independent of carrier frequency. At higher S sub 4 values, the spectrum is affected by diffraction at all spatial frequencies and its shape depends on carrier frequency. Keywords: Radio wave scintillation; Weak scatter; Strong scatter; Diffraction effects.
Document Details
- Document Type
- Technical Report
- Publication Date
- Sep 30, 1986
- Accession Number
- ADA181333
Entities
People
- Robert C. Livingston
- Teri M. Dabbs
Organizations
- SRI International