User manual MATLAB SIGNAL PROCESSING BLOCKSET RELEASE NOTES

[. . . ] Signal Processing BlocksetTM Release Notes How to Contact The MathWorks Web Newsgroup www. mathworks. com/contact_TS. html Technical Support www. mathworks. com comp. soft-sys. matlab suggest@mathworks. com bugs@mathworks. com doc@mathworks. com service@mathworks. com info@mathworks. com Product enhancement suggestions Bug reports Documentation error reports Order status, license renewals, passcodes Sales, pricing, and general information 508-647-7000 (Phone) 508-647-7001 (Fax) The MathWorks, Inc. 3 Apple Hill Drive Natick, MA 01760-2098 For contact information about worldwide offices, see the MathWorks Web site. Signal Processing BlocksetTM Release Notes © COPYRIGHT 2004­2010 by The MathWorks, Inc. The software described in this document is furnished under a license agreement. The software may be used or copied only under the terms of the license agreement. [. . . ] Open this demo by typing dspparameq. R12 Filtering Blocks Functionality Changed The following blocks that appeared in the dspobslib library in R2008b have been changed or removed: · Biquadratic Filter (Obsolete) -- Removed. Any Biquadratic Filter blocks that you are using in your models will be automatically upgraded to use the Biquad Filter block. · Direct Form II Transpose Filter (Obsolete) -- Updated to use an implementation of the Digital Filter block. · Time-Varying Direct-Form II Transpose Filter (Obsolete) -- Updated to use an implementation of the Digital Filter block. · Time-Varying Lattice Filter (Obsolete) -- Updated to use an implementation of the Digital Filter block. Compatibility Considerations You might need to consider the following compatibility issues for your existing models that use these blocks: · Empty ([]) initial conditions are no longer supported for these blocks. · The Time-Varying Direct-Form II Transpose Filter block no longer supports non-normalized IIR filters. 26 Version 6. 9 (R2009a) Signal Processing BlocksetTM Software · The Time-Varying Direct-Form II Transpose Filter block no longer supports coefficients of mixed complexity on the coefficients input port. 27 Signal Processing BlocksetTM Release Notes Version 6. 8 (R2008b) Signal Processing Blockset Software This table summarizes what's new in Version 6. 8 (R2008b): New Features and Changes Yes Details below Version Compatibility Considerations Yes Summary Fixed Bugs and Known Problems Bug Reports Includes fixes Related Documentation at Web Site No New features and changes introduced in this version are · "Code Generation Support for Signals Up to 128 Bits" on page 28 · "New Biquad Filter Block" on page 29 · "Increased N-Dimensional Support" on page 29 · "New Data Type Support Table" on page 29 · "Rectangular ROI Support for Minimum and Maximum Blocks" on page 29 · "Autocorrelation Block Provides Additional Fixed-Point Support" on page 30 · "QR Factorization Block Supports Full-Sized Outputs" on page 30 · "Counter Block Enhancements" on page 30 · "FFT Block Correctly Applies Divide-By-Two on Butterfly Outputs" on page 31 · "Matrix Sum Block Is Now the Simulink Sum Block" on page 31 Code Generation Support for Signals Up to 128 Bits Signal Processing Blockset software now supports C code generation and the Simulink Accelerator and Rapid Accelerator modes for fixed-point and integer word lengths up to 128 bits. This enhancement enables you to generate code for anything you can simulate using Signal Processing Blockset blocks. The only exception is the Sort block, which only supports code generation up to 32 bits for fixed-point and integer signals. 28 Version 6. 8 (R2008b) Signal Processing BlocksetTM Software New Biquad Filter Block A new Biquad Filter block has been added to the Signal Processing Blockset Filtering / Filter Designs library. This block allows you to implement IIR filters with optimized numerics. Increased N-Dimensional Support The following blocks now support N-D signals: · Downsample · DCT · FFT · IDCT · IFFT · Window Function New Data Type Support Table You can now access the Signal Processing Blockset Data Type Support Table through the Simulink model Help menu. The table provides information about data type support and code generation coverage for all Signal Processing Blockset blocks. Select Help > Block Support Table > Signal Processing Blockset or Help > Block Support Table > All Tables. As always, you can also type showsignalblockdatatypetable at the MATLAB command line to bring up the table. Rectangular ROI Support for Minimum and Maximum Blocks The Minimum and Maximum blocks now support Rectangular ROI (region of interest). See the block reference pages for more information. 29 Signal Processing BlocksetTM Release Notes Autocorrelation Block Provides Additional Fixed-Point Support The Autocorrelation block now supports the scaling of fixed-point signals. In previous releases, the block's Scaling parameter had to be set to None for fixed-point inputs. See the block reference page for more information. QR Factorization Block Supports Full-Sized Outputs The QR Factorization block now supports full-sized output matrices Q and R. In previous releases, the block only produced economy-sized outputs. This release adds the Output size parameter to enable you to select either Economy or Full outputs. Refer to the block reference page for more information. Counter Block Enhancements This release brings the following enhancements to the Counter block: · The former Clk port label is now Inc when the block is counting up, and Dec when the block is counting down. · The Inc/Dec port now supports 8-, 16-, and 32-bit signed and unsigned integer and fixed-point data types. · A new Max port was added to enable you to control the Counter size via an input port. · The Hit values parameter now accepts vectors as well as scalar values. · A new check is in place to require that the Hit values are integers. [. . . ] Previously, only the quick sort algorithm was supported. Renamed Blocks Periodogram The Short-Time FFT block that was located in the Power Spectrum Estimation library has been renamed the Periodogram block. This block computes a nonparametric estimate of the spectrum. All instances of the old Short-Time FFT block have been replaced by the Periodogram block. New Demos Demo Name Adaptive filter convergence CELP speech coder G711 A-law and A-Mu-A conversion G711 Mu-law and Mu-A-Mu conversion G711 and PCM encoding Phase vocoder Plucked string Radar tracking demonstration Short-Time Spectral Attenuation Vector quantizer design Signal Processing Demo Library Location Adaptive Processing Audio Processing Audio Processing Audio Processing Audio Processing Audio Processing Audio Processing Aerospace Spectral Analysis Miscellaneous Launch Command lmsxyplot dspcelpcoder dspg711amua dspg711muamu dspg711cmp dsppitchtime dsppluck aero_radmod_dsp dspstsa dspvqtwodim The Short-Time FFT demo in Spectral Analysis demo library is now the Periodogram demo. 74 Version 6. 0 (R14) Signal Processing BlocksetTM Software The Acoustic Noise Canceler demo (dspanc) is now supported on all platforms. It also has a fixed-point version (dspanc_fixpt). [. . . ]