6.6 HISTORICAL REVIEW
6.6.1 Three Analytic Spectral Shapes
In comparing different analytic forms for the shape of the ac component of the windblown clutter Doppler velocity spectrum Pac(v) [see Eq. (6.1)], it is necessary to base the comparison on equivalent total ac spectral power, and it is convenient to maintain total ac spectral power at unity. Such normalization is seldom implemented in representations of clutter spectra. Figure 6.44 shows examples of the three forms for Pac(v) to be discussed subsequently, namely Gaussian, power law, and exponential, in each of which
As a result, the power density levels at any value v for these three ...
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