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For each buffer of AF_BLOCKSIZE lines and width pixels do (taking care of AF_OVERLAP)

The azimuth spectrum is also weighted for the antenna pattern,

$\displaystyle frac{\sin((f_a-f_{DC})/f_{Dop})} {\pi((f_a-f_{DC})/f_{Dop})}^2$ (O1)

$ f_{Dop}=1505$ Hz, the Doppler bandwidth, see [7].

We did not de-weight (and re-weight) the spectrum for this. This might be visible in figure 15.1 as a slightly asymmetric spectrum, for master and slave. We are not convinced that this re-weighting can be performed, without changing the signal. However we believe that possible errors are small.

Leijen 2009-04-14