Signal Processing Toolbox Major Bug Fixes

besself Documentation Improved

Incorrect parameter information on the besself function reference page has been corrected.

chirp (Logarithmic Version) Fixed

The default values and the equation for the logarihtmic chirp have been fixed. The equation of the logarithmic chirp is

fi(t) = f0 * (beta)^t

and beta has been corrected to be

beta = (f1/f0) ^ (1/t1)

For logarithmic chirp, the default value for f0 is 1e^-6. (For all other chirp methods, the f0 default is 0.)

FDATool Bug Fixes

• Filter Specifications Button Error Fixed - Clicking on the Filter Specifications button in the FDATool toolbar while a filter analysis is displayed no longer produces an error on the MATLAB command line.
• Pole/Zero Editor Zooming - When you zoom an area in the FDATool Pole/Zero editor by dragging the mouse, the dotted line box now appears correctly.
• Sampling Frequency Error Fixed - In FDATool, selecting the Sampling Frequency from the Analysis menu before displaying an analysis or generating a filter no longer causes an error.
• Exporting Complex Filters to C Header Files - FDATool now supports exporting complex filters to a C Header file. The complex portion of the coefficients are written to a separate C variable. In previous releases only the real portion was written.
• Header Lines in Exported Filters - All headers lines now are commented (with % at the beginning of each line) for filters exported from FDATool.
• Printing Legends - The legends in FDATool plots now appear correctly when you print the plots.
• Magnitude and Phase Reponse Plot Printouts - Previewing or printing a a plot of the Magnitude and Phase Reponse now displays the correct axes labels.

fir2 Filter Order Greater than 1024 Supported

fir2 now allows you to use a filter order greater than 1024. Previously, you could not specify a window function and use a large filter order.

firls Length=2 Frequency Vector Fixed

Using a frequency vector of length = 2 with firls now produces correct results.

FVTool - Filter Coefficients Precision

The FVTool Filter Coefficients analysis now shows the exact numbers as stored without any rounding or truncation.

intfilt Documentation Improved

A more detailed explanation of the alpha parameter of intfilt has been added to the documentation.

MATLAB Compiler can now compile the FIRPM and CFIRPM functions

The correct %# function pragmas were added so that the compiler can find the private functions called from FIRPM or CFIRPM

msspectrum centerdc Flag

Setting the centerdc flag of msspectrum to true now works correctly. Previously, you had to specify the Sampling Frequency in addition to using the centerdc flag.

Spectrum Objects Window Settings

Spectrum objects containing a window (e.g. welch) now retain the window parameter settings when changing between the available windows.

SPTool Bug Fixes

• Playing Signals with Multiple Columns - All columns of a signal with multiple columns of input can now be played in the SPTool Signal Browser. Previous versions allowed you to display, but not play, all columns of the signal.
• Closing the Import Dialog - The Import to SPTool dialog now cancels and closes correctly.
• Signal Viewer Page Setup - The settings in the Page Setup dialog of SPTool are now saved and applied to printouts from SPTool.

xcorr2 Documentation Improved

Additional details and examples have been added to the xcorr2 documentation.