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. Author manuscript; available in PMC: 2018 Jun 13.
Published in final edited form as: Appl Sci (Basel). 2018 Feb 1;8(2):227. doi: 10.3390/app8020227

Figure 4.

Figure 4

Clutter filter magnitude response. One should note the induced periodicity of the stop bands. This periodicity is due to the design decision to filter the LRI polyphase channels independently, as explained in Section 2.1.4. The repeated notch locations of the filter are located at integer multiples of 2NT/fN. These notch locations correspond to the frame rates of HRIs, and consequentially the individual LRI polyphase channel frame rates as well. A zoomed in version is displayed below to help visualize stop band performance.