Upgrading from an Earlier Release :: Signal Processing Toolbox 6.1 Release Notes (Signal Processing Toolbox Release Notes)

Signal Processing Toolbox Release Notes

Upgrading from an Earlier Release

This section describes the upgrade issues involved in moving from the Signal Processing Toolbox Version 6.0 to Version 6.1.

Uninstall Previous Versions Before Installing Version 6.1

Verson 6.1 of the toolbox relocates some files to improve performance, so you must completely uninstall all earlier version of the Signal Processing Toolbox before installing the R13+ version.

Caution Uninstalling the toolbox deletes all files in the $MATLAB/toolbox signal directory. Backup any files you may need to another directory before performing the uninstall steps.

Close MATLAB before attempting to uninstall the toolbox.

On Windows systems, use the MATLAB Uninstaller which you can access from Start->Programs-> MATLAB 6.5-> Uninstall MATLAB 6.5. Select the Signal Processing Toolbox from the Uninstall Product List.

On Unix systems, use:

```
rm -rf $MATLAB/toolbox/signal
```

where $MATLAB represents the name of your top-level MATLAB installation directory.

Filter Structure Name Changes

The following changes have been made to the names of some filter structures.

Old Name
New Name

direct form
direct-form

auto-regressive
autoregressive

moving average
moving-average

Old Name	New Name
direct form	direct-form
auto-regressive	autoregressive
moving average	moving-average

New Warning Message for DFILT Filter method

If you pass initial condtions using the dfilt filter method, a warning message is displayed. The preferred way to pass initial conditions to a dfilt is with the new States method.

Major Bug Fixes