Version 4.2 (R2007b) Filter Design Toolbox :: Filter Design Toolbox Release Notes (Filter Design Toolbox™)

Version 4.2 (R2007b) Filter Design Toolbox

This table summarizes what's new and changed in Version 4.2(R2007b):

New Features and Changes	Version Compatibility Considerations	Fixed Bugs and Known Problems	Related Documentation at Web Site
Yes Details below	Yes	Bug Reports	Printable Release Notes: PDF Current product documentation

New Features and Changes

Version Compatibility Considerations

Fixed Bugs and Known Problems

Farrow Classes Moved into DFILT package

The two classes farrow.fd and farrow.linearfd have been moved into dfilt.farrowfd and dfilt.farrowlinearfd, respectively.

All Multirate Filter Structures Support Complex Coefficients

All structures for mfilt multirate filters can use complex coefficients.

New Multirate Farrow Filter Capable of Sample Rate Conversion

A new multirate filter, mfilt.farrowsrc, has been added to mfilts, allowing for Farrow decimators and interpolators, and fractional decimators and fractional interpolators where the resulting interpolation or decimation factor is not an integer.

Updated Getting Started and User's Guide

Updates to structure of User's Guide and Getting started include sections about using filterbuilder and a new chapter about using integers with FIR filters

Compatibility Considerations

The farrow.fd and farrow.linearfd functions have been removed. For more information about the removal of these functions, see Functions Being Removed.

Functions Being Removed

Function Being Removed	What Happens When You Run the Function?	Use this Function Instead	Compatibility Considerations
`farrow.fd`	Still runs	`dfilt.farrowfd`	Farrow filters are now constructed using the dfilt (discrete-time filter) structure. Instead of using farrow.fd, use dfilt.farrowfd. See the reference page for dfilt for more information.
`farrow.linearfd`	Still runs	`dfilt.farrowlinearfd`	As noted above Farrow filters are now created using the dfilt constructor.

Function Being Removed

What Happens When You Run the Function?

Use this Function Instead

Compatibility

Considerations

farrow.fd

Still runs

dfilt.farrowfd

Farrow filters are now constructed using the dfilt (discrete-time filter) structure. Instead of using farrow.fd, use dfilt.farrowfd. See the reference page for dfilt for more information.

farrow.linearfd

Still runs

dfilt.farrowlinearfd

As noted above Farrow filters are now created using the dfilt constructor.