Nonstationarity: patching |

- Code the linear operator including its adjoint.
**Smoothing program.**Some familiar operations can be seen in a new light when done in patches. Patch the data. In each patch, find the mean value. Replace each value by the mean value. Reconstruct the wall.**Smoothing while filling missing data.**This is like smoothing, but you set window weights to zero where there is no data. Because there will be a different set of weights in each window, you will need to make a simple generalization to`mkwallwt`.**Gain control.**Divide the data into patches. Compute the square root of the sum of the squares of all the data in each patch. Divide all values in that patch by this amount. Reassemble patches.

Nonstationarity: patching |

2013-07-26