Clutter-Doppler Spectral Analysis for a Space-Based Radar
Abstract:
The impact of worst-case, ionospheric scintillation on the clutter- Doppler spectrum is analyzed for a space-based radar that operates between 100 and 1300 MHz. Analytical expressions for the spectrum are derived for a narrow, Gaussian antenna beam. For normal system parameters, the analytical expressions, combined with data from the Defense Nuclear Agencys Wideband satellite experiment, are used to compare the relative significance of the components of the clutter-Doppler spread for a range cell and to obtain the clutter-Doppler spread over the antennas mainlobe. In addition, lower bounds are determined on the achievable reduction in the clutter-Doppler spread of a system.
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Collection: TR