http://www.mathworks.com/help//dsp/examples/
Featured Examples in DSP System Toolbox
MATLAB Demos
Tutorial Demos
 | Designing Low Pass FIR Filters |
 | Getting Started with Multirate Filter (MFILT) Objects |
 | FIR Interpolation |
 | FIR Decimation |
 | Getting Started with Adaptive Filters (ADAPTFILT) Objects |
 | Getting Started with Fixed-Point Filters |
 | Working with Fixed-Point Direct-Form FIR Filters |
 | Arbitrary Magnitude Filter Design |
 | Signal Statistics |
 | Wavelet Denoising |
 | Creating New Kinds of System Objects for File Input and Output |
FIR Filter Design
| Designing Low Pass FIR Filters |
 | Efficient Narrow Transition-Band FIR Filter Design |
 | Minimax FIR Filter Design |
 | FIR Nyquist (L-th band) Filter Design |
 | FIR Halfband Filter Design |
 | Least Pth-norm Optimal FIR Filter Design |
IIR Filter Design
 | Classic IIR Filter Design |
 | IIR Polyphase Filter Design |
 | Design of Peaking and Notching Filters |
 | IIR Filter Design Given a Prescribed Group Delay |
 | Least Pth-Norm Optimal IIR Filter Design |
Multirate Filters
| Getting Started with Multirate Filter (MFILT) Objects |
 | Using a Cascaded Integrator-Comb (CIC) Decimation Filter |
 | Analysis of Multirate Filters |
 | Design of Decimators/Interpolators |
 | Multistage Design Of Decimators/Interpolators |
 | Efficient Sample Rate Conversion between Arbitrary Factors |
 | Perfect Reconstruction Two-channel Filter Bank |
Adaptive Processing
| Getting Started with Adaptive Filters (ADAPTFILT) Objects |
 | Adaptive Line Enhancer (ALE) |
 | Adaptive Noise Canceling (ANC) Applied to Fetal Electrocardiography |
 | Active Noise Control Using a Filtered-X LMS FIR Adaptive Filter |
 | Adaptive Noise Cancellation Using RLS Adaptive Filtering |
 | Acoustic Noise Cancellation (LMS) |
 | Time Delay Estimation and Echo Cancellation |
Audio Processing
| Acoustic Noise Cancellation (LMS) |
| Audio Flanging |
 | LPC Analysis and Synthesis of Speech |
 | Pitch Shifting and Time Dilation Using a Phase Vocoder |
 | Audio Sample-Rate Conversion Using MFILT Objects |
 | Acoustic Echo Cancellation (AEC) |
 | Audio Weighting Filters |
 | Octave-Band and Fractional Octave-Band Filters |
 | Parametric Equalizer Design |
| 3-Band Parametric Audio Equalizer Using UDP Packets and Code Generation |
Communications
 | Pulse Shaping Filter Design |
 | Envelope Detection |
 | Equalization in Digital Communications |
 | Voice Over IP (VOIP) |
 | Three-Channel Wavelet Transmultiplexer |
 | Arbitrary Magnitude and Phase Filter Design |
 | Fractional Delay Filters Using Farrow Structures |
 | Complex Bandpass Filter Design |
 | IF Subsampling with Complex Multirate Filters |
 | GSM Digital Down Converter Uses: Fixed-Point Toolbox |
 | Design and Analysis of a Digital Down Converter Uses: Fixed-Point Toolbox |
 | Digital Up and Down Conversion for Family Radio Service |
 | Implementing the Filter Chain of a Digital Down-Converter in HDL |
Fixed Point
| Getting Started with Fixed-Point Filters |
 | Floating-Point to Fixed-Point Conversion of FIR Filters |
| Working with Fixed-Point Direct-Form FIR Filters |
 | Optimized Fixed-Point FIR Filters |
 | Floating-Point to Fixed-Point Conversion of IIR Filters |
 | Fixed-Point Scaling of an Elliptic IIR Filter |
 | Acoustic Noise Cancellation (LMS) Uses: Fixed-Point Toolbox |
| GSM Digital Down Converter Uses: Fixed-Point Toolbox |
MATLAB(R) Coder(TM)
 | Using System Objects with MATLAB Coder™ Uses: MATLAB Coder |
MATLAB(R) Compiler(TM)
| Using System Objects with MATLAB Compiler™ Uses: MATLAB Compiler |
Simulink Demos
Tutorial Demos
 | Sine Wave Generation Uses: Simulink |
 | Overlap-Add/Save Uses: Simulink |
 | Queues Uses: Simulink |
 | Vector Quantizer Design Uses: Simulink |
 | Comparison of Spectral Analysis Techniques Uses: Simulink |
 | Short-Time Spectral Attenuation Uses: Simulink |
Adaptive Processing
 | Acoustic Noise Cancellation (LMS) Uses: Simulink |
 | Adaptive Filter Convergence Uses: Simulink |
 | Noise Canceler (RLS) Uses: Simulink |
 | Nonstationary Channel Estimation Using Recursive Least Squares Uses: Simulink |
 | Time-Delay Estimation Uses: Simulink |
Audio Processing
| Acoustic Noise Cancellation (LMS) Uses: Simulink |
 | Audio Sample Rate Conversion Uses: Simulink |
 | Audio Special Effects Uses: Simulink |
 | Cochlear Implant Speech Processor Uses: Simulink |
 | Comparison of LDM, CVSD, and ADPCM Uses: Simulink |
 | Dynamic Range Compression Using Overlap-Add Reconstruction Uses: Simulink |
 | G.711 A-Law and A-Mu-A Conversion Uses: Simulink |
 | G.711 Mu-Law and Mu-A-Mu Conversion Uses: Simulink |
 | G.711 and PCM Encoding Uses: Simulink |
 | Internet Low Bitrate Codec (iLBC) for VoIP Uses: Simulink |
 | LPC Analysis and Synthesis of Speech Uses: Simulink |
 | Parametric Audio Equalizer Uses: Simulink |
 | Pitch Shifting and Time Dilation Using a Phase Vocoder Uses: Simulink |
 | Positional Audio Uses: Simulink |
| Short-Time Spectral Attenuation Uses: Simulink |
 | Simulation of a Plucked String Uses: Simulink |
 | Stereo Expansion Using Data Acquisition Hardware Uses: Simulink, Data Acquisition Toolbox |
 | Vorbis Decoder Uses: Simulink |
Communications
 | Envelope Detection Uses: Simulink |
 | DTMF Generator and Receiver Uses: Simulink |
 | GSM Digital Down Converter Uses: Simulink |
 | SSB Modulation Uses: Simulink |
 | Voice Over IP (VOIP) Uses: Simulink |
 | WWV Digital Receiver - Synchronization and Detection Uses: Simulink |
Fixed Point
| Acoustic Noise Cancellation (LMS) Uses: Simulink |
| Audio Sample Rate Conversion Uses: Simulink |
 | Autoscaling and Curve Fitting Uses: Simulink |
| Cochlear Implant Speech Processor Uses: Simulink |
 | Converting a Parametric Audio Equalizer to Fixed Point Uses: Simulink |
| GSM Digital Down Converter Uses: Simulink |
 | Sigma-Delta A/D Conversion Uses: Simulink |
 | Wavelet Reconstruction and Noise Reduction Uses: Simulink |
Radar
 | Radar Tracking Uses: Simulink |
 | Synthetic Aperture Radar (SAR) Processing Uses: Simulink |
Spectral Analysis
| Comparison of Spectral Analysis Techniques Uses: Simulink |
| Short-Time Spectral Attenuation Uses: Simulink |
 | Spectral Analysis Using the Periodogram Method Uses: Simulink |
 | Spectral Analysis Using Data Acquisition Hardware Uses: Simulink, Data Acquisition Toolbox |
HDL
 | Generate HDL Code for Programmable FIR Filter Uses: Simulink |
Hardware Interfaces
 | Data Processing and Output Using Data Acquisition Hardware Uses: Simulink, Data Acquisition Toolbox |
| Stereo Expansion Using Data Acquisition Hardware Uses: Simulink, Data Acquisition Toolbox |
| Spectral Analysis Using Data Acquisition Hardware Uses: Simulink, Data Acquisition Toolbox |
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