ю
Figure 3.7: Wavelet coefficient of irregular wavelet transformation and fine-gride
wavelet transformation.
measurement matrix are zero, they do not affect the optimization.
PROCEDURE 1
Mapping from irregular gates to fine regular grids
(1) Set all the regular grid points unmarked
(2) for all gates, gi
a. p = the closest grid point to the gates that is unmarked
b. assign gate дг to p
c. Mark regular grid point p
Note that as an alternative method to deal with irregular grids, we could use
irregular wavelet transformation introduced by Wagner et al. [75]. The irregular
wavelet transformation is based on the regular wavelet transformation; however,
it is adapted to irregular point arrangement. Figure 3.7 shows sorted wavelet
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