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Radar Systems Analysis and Design Using MATLAB Third Edition, 3rd Edition by Bassem R. Mahafza

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Chapter 10

Moving Target Indicator (MTI) and Pulsed Doppler Radars

10.1. Clutter Power Spectrum Density

Clutter primarily comprises unwanted stationary ground reflections with limited relative motion with respect to the radar. Therefore, its power spectrum density will be concentrated around f = 0. However, because the overall clutter spreading σf (derived in Chapter 9 and repeated here as Eq. (10.1) for convenience) is not always zero, clutter actually exhibits some Doppler frequency spread. The overall clutter spreading is denoted by σf, and is given by

σf2=σv2+σs2+σw2.      Eq. (10.1)

σv accounts for clutter spread due to platform motion, σs accounts for the antenna scan rate, and σw accounts for the clutter spread due to wind.

The clutter ...

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