Download DSP System Toolbox User's Guide PDF

TitleDSP System Toolbox User's Guide
LanguageEnglish
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Total Pages1020
Table of Contents
                            DSP Tutorials
	Introduction to Streaming Signal Processing in MATLAB
	Filter Frames of a Noisy Sine Wave Signal in MATLAB
	Filter Frames of a Noisy Sine Wave Signal in Simulink
		Open Model
		Inspect Model
		Compare Original and Filtered Signal
	Lowpass Filter Design in MATLAB
	Lowpass IIR Filter Design in Simulink
		filterBuilder
		Butterworth Filter
		Chebyshev Type I Filter
		Chebyshev Type II Filter
		Elliptic Filter
		Minimum-Order Designs
		Lowpass Filter Block
		Variable Bandwidth IIR Filter Block
	Design Multirate Filters
		Implement an FIR Decimator in MATLAB
		Implement an FIR Decimator in Simulink
		Sample Rate Conversion
	Tunable Lowpass Filtering of Noisy Input in Simulink
		Open Lowpass Filter Model
		Simulate the Model
	Signal Processing Algorithm Acceleration in MATLAB
		FIR Filter Algorithm
		Accelerate the FIR Filter Using codegen
		Accelerate the FIR Filter Using dspunfold
		Kalman Filter Algorithm
		Accelerate the Kalman Filter Using codegen
		Accelerate the Kalman Filter Using dspunfold
	Signal Processing Acceleration through Code Generation
		FIR Filter Algorithm
		Accelerate the FIR Filter Using codegen
		Accelerate the FIR Filter Using dspunfold
	Multithreaded MEX File Generation
		Use dspunfold with a MATLAB Function Containing a Stateless Algorithm
		Using dspunfold with a MATLAB Function Containing a Stateful Algorithm
		Detecting State Length Automatically
		Verify Generated Multithreaded MEX Using the Generated Analyzer
	Fixed-Point Filter Design in MATLAB
	Visualizing Multiple Signals Using Logic Analyzer
		Model Programmable FIR Filter
		Simulation
		Use the Logic Analyzer
		Modify the Display
	Signal Visualization and Measurements in MATLAB
	Filter Frames of a Noisy Sine Wave Signal using Testbench Generator
	Create Composite System object
		Create Multi-Notch Filter
		Set Up the Multi-Notch Filters
		Contain System Objects as Private Properties
		Work with Dependent Properties
		Use the Multi-Notch Filter - Initialization
		Use the Multi-Notch Filter - Streaming
Input, Output, and Display
	Discrete-Time Signals
		Time and Frequency Terminology
		Recommended Settings for Discrete-Time Simulations
		Simulink Tasking Modes
		Other Settings for Discrete-Time Simulations
		Cross-Rate Operations
	Continuous-Time Signals
		Continuous-Time Source Blocks
		Continuous-Time Nonsource Blocks
	Create Signals for Sample-Based Processing
		Create Signals Using Constant Block
		Create Signals Using Signal From Workspace Block
	Create Signals for Frame-Based Processing
		Create Signals Using Sine Wave Block
		Create Signals Using Signal From Workspace Block
	Create Multichannel Signals for Sample-Based Processing
		Multichannel Signals for Sample-Based Processing
		Create Multichannel Signals by Combining Single-Channel Signals
		Create Multichannel Signals by Combining Multichannel Signals
	Create Multichannel Signals for Frame-Based Processing
		Multichannel Signals for Frame-Based Processing
		Create Multichannel Signals Using Concatenate Block
	Deconstruct Multichannel Signals for Sample-Based Processing
		Split Multichannel Signals into Individual Signals
		Split Multichannel Signals into Several Multichannel Signals
	Deconstruct Multichannel Signals for Frame-Based Processing
		Split Multichannel Signals into Individual Signals
		Reorder Channels in Multichannel Signals
	Import and Export Signals for Sample-Based Processing
		Import Vector Signals for Sample-Based Processing
		Import Matrix Signals for Sample-Based Processing
		Export Signals for Sample-Based Processing
	Import and Export Signals for Frame-Based Processing
		Import Signals for Frame-Based Processing
		Export Frame-Based Signals
Data and Signal Management
	Sample- and Frame-Based Concepts
		Sample- and Frame-Based Signals
		Model Sample- and Frame-Based Signals in MATLAB and Simulink
		What Is Sample-Based Processing?
		What Is Frame-Based Processing?
	Inspect Sample and Frame Rates in Simulink
		Sample Rate and Frame Rate Concepts
		Inspect Signals Using the Probe Block
		Inspect Signals Using Color Coding
	Convert Sample and Frame Rates in Simulink
		Rate Conversion Blocks
		Rate Conversion by Frame-Rate Adjustment
		Rate Conversion by Frame-Size Adjustment
		Frame Rebuffering Blocks
		Buffer Signals by Preserving the Sample Period
		Buffer Signals by Altering the Sample Period
	Buffering and Frame-Based Processing
		Buffer Input into Frames
		Buffer Signals into Frames with Overlap
		Buffer Frame Inputs into Other Frame Inputs
		Buffer Delay and Initial Conditions
		Unbuffer Frame Signals into Sample Signals
	Delay and Latency
		Computational Delay
		Algorithmic Delay
		Zero Algorithmic Delay
		Basic Algorithmic Delay
		Excess Algorithmic Delay (Tasking Latency)
		Predict Tasking Latency
	Variable-Size Signal Support DSP System Objects
		Variable-Size Signal Support Example
		DSP System Toolbox System Objects That Support Variable-Size Signals
Filter Analysis, Design, and Implementation
	Design a Filter in Fdesign — Process Overview
		Process Flow Diagram and Filter Design Methodology
	Use Filter Designer with DSP System Toolbox Software
		Design Advanced Filters in Filter Designer
		Access the Quantization Features of Filter Designer
		Quantize Filters in Filter Designer
		Analyze Filters with a Noise-Based Method
		Scale Second-Order Section Filters
		Reorder the Sections of Second-Order Section Filters
		View SOS Filter Sections
		Import and Export Quantized Filters
		Generate MATLAB Code
		Import XILINX Coefficient (.COE) Files
		Transform Filters Using Filter Designer
		Design Multirate Filters in Filter Designer
		Realize Filters as Simulink Subsystem Blocks
	FIR Nyquist (L-th band) Filter Design
	Digital Frequency Transformations
		Details and Methodology
		Frequency Transformations for Real Filters
		Frequency Transformations for Complex Filters
	Digital Filter Design Block
		Overview of the Digital Filter Design Block
		Select a Filter Design Block
		Create a Lowpass Filter in Simulink
		Create a Highpass Filter in Simulink
		Filter High-Frequency Noise in Simulink
	Filter Realization Wizard
		Overview of the Filter Realization Wizard
		Design and Implement a Fixed-Point Filter in Simulink
		Set the Filter Structure and Number of Filter Sections
		Optimize the Filter Structure
	Digital Filter Implementations
		Using Digital Filter Blocks
		Implement a Lowpass Filter in Simulink
		Implement a Highpass Filter in Simulink
		Filter High-Frequency Noise in Simulink
		Specify Static Filters
		Specify Time-Varying Filters
		Specify the SOS Matrix (Biquadratic Filter Coefficients)
	Removing High-Frequency Noise from an ECG Signal
Adaptive Filters
	Overview of Adaptive Filters and Applications
		Adaptive Filters in DSP System Toolbox
		Choosing an Adaptive Filter
		Mean Squared Error Performance
		Common Applications
	System Identification of FIR Filter Using LMS Algorithm
	System Identification of FIR Filter Using Normalized LMS Algorithm
	Compare Convergence Performance Between LMS Algorithm and Normalized LMS Algorithm
	Noise Cancellation Using Sign-Data LMS Algorithm
	Compare RLS and LMS Adaptive Filter Algorithms
	Inverse System Identification Using RLS Algorithm
	Signal Enhancement Using LMS and NLMS Algorithms
	Noise Cancellation in Simulink Using Normalized LMS Adaptive Filter
		Create an Acoustic Environment in Simulink
		LMS Filter Configuration for Adaptive Noise Cancellation
		Modify Adaptive Filter Parameters During Model Simulation
Multirate and Multistage Filters
	Multirate Filters
		Why Are Multirate Filters Needed?
		Overview of Multirate Filters
	Multistage Filters
		Why Are Multistage Filters Needed?
		Optimal Multistage Filters in DSP System Toolbox
	Compare Single-Rate/Single-Stage Filters with Multirate/Multistage Filters
	Design of Decimators/Interpolators
	Filter Banks
		Dyadic Analysis Filter Banks
		Dyadic Synthesis Filter Banks
	Multirate Filtering in Simulink
Dataflow
	Dataflow Domain
		Specifying Dataflow Domains
		Simulation of Dataflow Domains
		Dataflow Parameters
		Unsupported Simulink Software Features in Dataflow Domains
	Model Multirate Signal Processing Systems Using Dataflow
	Multicore Simulation and Code Generation of Dataflow Domains
		Simulation of Dataflow Domains
		Code Generation of Dataflow Domains
		Types of Parallelism
		Improve Simulation Throughput with Multicore Simulation
		Generate Multicore Code from a Dataflow Subsystem
	Multicore Execution using Dataflow Domain
	Multicore Code Generation for Dataflow Domain
Simulink HDL Optimized Block Examples in DSP System Toolbox
	Implement CIC Decimation Filter for HDL
	Fully Parallel Systolic FIR Filter Implementation
	Partly Serial Systolic FIR Filter Implementation
	Automatic Delay Matching for the Latency of FFT HDL Optimized Block
Simulink Block Examples in Scopes and Data Logging Category
	Obtain Measurement Data Programmatically for dsp.SpectrumAnalyzer System object
	Obtain Measurements Data Programmatically for Spectrum Analyzer Block
DSP System Toolbox Simulink block Examples in Signal Input and Output Category
	Write and Read Binary Files in Simulink
	Write and Read Matrix Data from Binary Files in Simulink
	Write and Read Fixed-Point Data from Binary Files in Simulink
	Write and Read Character Data from Binary Files in Simulink
	Change the Endianness of the Data in Simulink
Simulink Block Examples in Signal Generation and Operations Category
	Delay Signal Using Multitap Fractional Delay
	Bidirectional Linear Sweep
	Unidirectional Linear Sweep
	When Sweep Time Is Greater than Target Time
	Sweep with Negative Frequencies
	Aliased Sweep
	Generate Discrete Impulse with Three Channels
	Generate Unit-Diagonal and Identity Matrices
	Generate Five-Phase Output from the Multiphase Clock Block
	Count Down Through Range of Numbers
	Import Frame-Based Signal From Workspace
	Import 3-D Array From Workspace
	Generate Sample-Based Sine Waves
	Generate Frame-Based Sine Waves
	Design an NCO Source Block
	Generate Constant Ramp Signal
	Averaged Power Spectrum of Pink Noise
	Downsample a Signal
	Sample and Hold a Signal
	Generate and Apply Hamming Window
	Convert Sample Rate of Speech Signal
	Unwrap Signal
	Convolution of Two Inputs
	Select Rows or Columns from Matrices
	Convert 2-D Matrix to 1-D Array
Simulink Block Examples in DSP System Toolbox
	Why Does Reading Data from the dsp.AsyncBuffer Object Give a Dimension Mismatch Error in the MATLAB Function Block?
	Why Does the dsp.AsyncBuffer Object Error When You Call read Before write?
	Buffering Input with Overlap
Simulink Block Examples in DSP System Toolbox
	Synthesize and Channelize Audio
	Filter input with Butterworth Filter in Simulink
Simulink Block Examples in DSP System Toolbox
	Compute the Maximum
	Compute the Running Maximum
	Compute the Minimum
	Compute the Running Minimum
	Compute the Mean
	Compute the Running Mean
	Compute the Histogram of Real and Complex Data
	Extract Submatrix from Input Signal
	Compute Difference of a Matrix
	Compute Maximum Column Sum of Matrix
	Convert Amplitude Signal to dB
	Extract Diagonal of Matrix
	Generate Diagonal Matrix from Vector Input
	Permute Matrix by Row or Column
	LDL Factorization of 3-by-3 Hermitian Positive Definite Matrix
Simulink Block Examples in Transforms and Spectral Analysis Category
	Analyze a Subband of Input Frequencies Using Zoom FFT
Transforms, Estimation, and Spectral Analysis
	Transform Time-Domain Data into Frequency Domain
	Transform Frequency-Domain Data into Time Domain
	Linear and Bit-Reversed Output Order
		FFT and IFFT Blocks Data Order
		Find the Bit-Reversed Order of Your Frequency Indices
	Calculate Channel Latencies Required for Wavelet Reconstruction
		Analyze Your Model
		Calculate the Group Delay of Your Filters
		Reconstruct the Filter Bank System
		Equalize the Delay on Each Filter Path
		Update and Run the Model
		References
	Estimate the Power Spectrum in MATLAB
		Estimate the Power Spectrum Using dsp.SpectrumAnalyzer
		Convert the Power Between Units
		Estimate the Power Spectrum Using dsp.SpectrumEstimator
	Estimate the Power Spectrum in Simulink
		Estimate the Power Spectrum Using the Spectrum Analyzer
		Convert the Power Between Units
		Estimate Power Spectrum Using the Spectrum Estimator Block
	Estimate the Transfer Function of an Unknown System
		Estimate the Transfer Function in MATLAB
		Estimate the Transfer Function in Simulink
	View the Spectrogram Using Spectrum Analyzer
		Colormap
		Display
		Resolution Bandwidth (RBW)
		Time Resolution
		Convert the Power Between Units
		Scale Color Limits
	Spectral Analysis
		Welch’s Algorithm of Averaging Modified Periodograms
		Filter Bank
Fixed-Point Design
	Fixed-Point Signal Processing
		Fixed-Point Features
		Benefits of Fixed-Point Hardware
		Benefits of Fixed-Point Design with System Toolboxes Software
	Fixed-Point Concepts and Terminology
		Fixed-Point Data Types
		Scaling
		Precision and Range
	Arithmetic Operations
		Modulo Arithmetic
		Two's Complement
		Addition and Subtraction
		Multiplication
		Casts
	System Objects in DSP System Toolbox that Support Fixed-Point
		Get Information About Fixed-Point System Objects
		Set System Object Fixed-Point Properties
		Full Precision for Fixed-Point System Objects
	Simulink Blocks in DSP System Toolbox that Support Fixed-Point
	System Objects Supported by Fixed-Point Converter App
	Convert dsp.FIRFilter Object to Fixed-Point Using the Fixed-Point Converter App
		Create DSP Filter Function and Test Bench
		Convert the Function to Fixed-Point
	Specify Fixed-Point Attributes for Blocks
		Fixed-Point Block Parameters
		Specify System-Level Settings
		Inherit via Internal Rule
		Specify Data Types for Fixed-Point Blocks
	Quantizers
		Scalar Quantizers
		Vector Quantizers
	Create an FIR Filter Using Integer Coefficients
		Define the Filter Coefficients
		Build the FIR Filter
		Set the Filter Parameters to Work with Integers
		Create a Test Signal for the Filter
		Filter the Test Signal
		Truncate the Output WordLength
		Scale the Output
		Configure Filter Parameters to Work with Integers Using the set2int Method
	Fixed-Point Precision Rules for Avoiding Overflow in FIR Filters
		Output Limits for FIR Filters
		Fixed-Point Precision Rules
		Polyphase Interpolators and Decimators
C Code Generation
	Functions and System Objects Supported for C Code Generation
	Understanding C Code Generation in DSP System Toolbox
		Generate C and C++ code from MATLAB code
		Generate C and C++ Code from a Simulink Model
		Shared Library Dependencies
		Generate C Code for ARM Cortex-M and ARM Cortex-A Processors
		Generate Code for Mobile Devices
	Generate C Code from MATLAB Code
		Set Up the Compiler
		Break Out the Computational Part of the Algorithm into a MATLAB Function
		Make Code Suitable for Code Generation
		Compare the MEX Function with the Simulation
		Generate a Standalone Executable
		Read and Verify the Binary File Data
		Relocate Code to Another Development Environment
	Relocate Code Generated from MATLAB Code to Another Development Environment
		Package the Code
		Prebuilt Dynamic Library Files (.dll)
	Generate C Code from Simulink Model
		Open the Model
		Configure Model for Code Generation
		Simulate the Model
		Generate Code from the Model
		Build and Run the Generated Code
	Relocate Code Generated from a Simulink Model to Another Development Environment
		Package the Code
		Prebuilt Dynamic Library Files (.dll)
	How To Run a Generated Executable Outside MATLAB
	Use Generated Code to Accelerate an Application Deployed with MATLAB Compiler
	How Is dspunfold Different from parfor?
		DSP Algorithms Involve States
		dspunfold Introduces Latency
		parfor Requires Significant Restructuring in Code
		parfor Used with dspunfold
	Workflow for Generating a Multithreaded MEX File using dspunfold
		Workflow Example
	Why Does the Analyzer Choose the Wrong State Length?
		Reason for Verification Failure
		Recommendation
	Why Does the Analyzer Choose a Zero State Length?
		Recommendation
	Array Plot with Android Devices
HDL Code Generation
	HDL Code Generation Support for DSP System Toolbox
		Blocks
		System Objects
	Find Blocks and System Objects Supporting HDL Code Generation
		Blocks
		System Objects
	High Throughput HDL Algorithms
		Blocks with HDL Support for Frame Input
	HDL Filter Architectures
		Fully Parallel Architecture
		Serial Architectures
		Frame-Based Architecture
	Subsystem Optimizations for Filters
		Sharing
		Streaming
		Pipelining
		Area Reduction of Filter Subsystem
		Area Reduction of Multichannel Filter Subsystem
Links to Category Pages
	Signal Management Library
	Sinks Library
	Math Functions Library
	Filtering Library
Designing Lowpass FIR Filters
	Lowpass FIR Filter Design
	Controlling Design Specifications in Lowpass FIR Design
	Designing Filters with Non-Equiripple Stopband
	Minimizing Lowpass FIR Filter Length
Filter Designer: A Filter Design and Analysis App
	Using Filter Designer
		Choosing a Response Type
		Choosing a Filter Design Method
		Setting the Filter Design Specifications
		Computing the Filter Coefficients
		Analyzing the Filter
		Editing the Filter Using the Pole/Zero Editor
		Converting the Filter Structure
		Exporting a Filter Design
		Generating a C Header File
		Generating MATLAB Code
		Managing Filters in the Current Session
		Saving and Opening Filter Design Sessions
	Importing a Filter Design
		Import Filter Panel
		Filter Structures
Designing a Filter in the Filter Builder GUI
	Filter Builder Design Process
		Introduction to Filter Builder
		Design a Filter Using Filter Builder
		Select a Response
		Select a Specification
		Select an Algorithm
		Customize the Algorithm
		Analyze the Design
		Realize or Apply the Filter to Input Data
Visualize Data and Signals
	Display Time-Domain Data
		Configure the Time Scope Properties
		Use the Simulation Controls
		Modify the Time Scope Display
		Inspect Your Data (Scaling the Axes and Zooming)
		Manage Multiple Time Scopes
	Display Frequency-Domain Data in Spectrum Analyzer
	Visualize Central Limit Theorem in Array Plot
	Configure Spectrum Analyzer
		Signal and Spectrum Computation Information
		Generate a MATLAB Script
		Spectral Masks
		Measurements Panels
		Customize Visualization
		Zoom and Pan
	Configure Array Plot MATLAB Object
		Signal Display
		Multiple Signal Names and Colors
		Configure Plot Settings
		Use dsp.ArrayPlot Measurements
		Share or Save the Array Plot
		Scale Axes
	Configure Array Plot Block
		Signal Display
		Multiple Signal Names and Colors
		Array Plot Measurement Panels
		Configuration Properties
		Style Dialog Box
		Axes Scaling Properties
	Configure Time Scope
		Signal Display
		Display Multiple Signals
		Time Scope Measurement Panels
		Style Dialog Box
		Axes Scaling Properties
		Sources — Streaming Properties
	Common Scope Block Tasks
		Connect Multiple Signals to a Scope
		Save Simulation Data Using Scope Block
		Pause Display While Running
		Copy Scope Image
		Plot an Array of Signals
		Scopes in Referenced Models
		Scopes Within an Enabled Subsystem
		Show Signal Units on a Scope Display
		Select Number of Displays and Layout
		Dock and Undock Scope Window to MATLAB Desktop
	Display Frequency Input on Spectrum Analyzer
	Use Peak Finder to Find Heart Rate from ECG Input
Logic Analyzer
	Inspect and Measure Transitions Using the Logic Analyzer
		Open a Simulink Model
		Open the Logic Analyzer
		Configure Global Settings and Visual Layout
		Set Stepping Options
		Run Model
		Configure Individual Wave Settings
		Inspect and Measure Transitions
		Step Through Simulation
		Save Logic Analyzer Settings
	Configure Logic Analyzer
Statistics and Linear Algebra
	What Are Moving Statistics?
	Sliding Window Method and Exponential Weighting Method
		Sliding Window Method
		Exponential Weighting Method
	Measure Statistics of Streaming Signals
		Compute Moving Average Using Only MATLAB Functions
		Compute Moving Average Using System Objects
	How Is a Moving Average Filter Different from an FIR Filter?
		Frequency Response of Moving Average Filter and FIR Filter
	Energy Detection in the Time Domain
		Detect Signal Energy
	Remove High-Frequency Noise from Gyroscope Data
	Measure Pulse and Transition Characteristics of Streaming Signals
	Linear Algebra and Least Squares
		Linear Algebra Blocks
		Linear System Solvers
		Matrix Factorizations
		Matrix Inverses
Bibliography
	References — Advanced Filters
	References — Frequency Transformations
Audio I/O User Guide
	Run Audio I/O Features Outside MATLAB and Simulink
Block Example Repository
	Decrease Underrun
                        
Document Text Contents
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DSP System Toolbox™ User's Guide
© COPYRIGHT 2011–2020 by The MathWorks, Inc.
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Revision History
April 2011 First printing Revised for Version 8.0 (R2011a)
September 2011 Online only Revised for Version 8.1 (R2011b)
March 2012 Online only Revised for Version 8.2 (R2012a)
September 2012 Online only Revised for Version 8.3 (R2012b)
March 2013 Online only Revised for Version 8.4 (R2013a)
September 2013 Online only Revised for Version 8.5 (R2013b)
March 2014 Online only Revised for Version 8.6 (R2014a)
October 2014 Online only Revised for Version 8.7 (R2014b)
March 2015 Online only Revised for Version 9.0 (R2015a)
September 2015 Online only Revised for Version 9.1 (R2015b)
March 2016 Online only Revised for Version 9.2 (R2016a)
September 2016 Online only Revised for Version 9.3 (R2016b)
March 2017 Online only Revised for Version 9.4 (R2017a)
September 2017 Online only Revised for Version 9.5 (R2017b)
March 2018 Online only Revised for Version 9.6 (R2018a)
September 2018 Online only Revised for Version 9.7 (R2018b)
March 2019 Online only Revised for Version 9.8 (R2019a)
September 2019 Online only Revised for Version 9.9 (R2019b)
March 2020 Online only Revised for Version 9.10 (R2020a)

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