Communications Blockset Getting Started Preface What Is the Communications Blockset? Related Products Using This Guide Expected Background Organization of the Document Configuration Information Using the Blockset Technical Conventions Scalars, Vectors, and Matrices Frame-Based and Sample-Based Signals Typographical Conventions Getting Started with the Communications Blockset The Example Model Overview of the Simulation Building the Model Exploring the Model Components of the Example Creating Random Binary Data Encoding Using a Convolutional Code Unbuffering to Convert Vectors to Scalars Modulating the Encoded Messages Transmitting Along a Noisy Channel Mapping the Received Data Buffering to Convert Scalars to Vectors Decoding the Convolutional Code Computing the Error Rate Displaying the Error Rate Other Blocks Learning More About the Example Modifying the Model For Further Study Using the Communications Blockset Signal Support Processing Vectors and Matrices Processing Frame-Based and Sample-Based Signals Communications Sources Source Features of the Blockset Random or Pseudorandom Signals Nonrandom Signals Communications Sinks Sink Features of the Blockset Writing to a File Error Statistics Eye Diagrams Scatter Diagrams Example: Using Eye and Scatter Diagrams Source Coding Source Coding Features of the Blockset Representing Quantization Parameters Quantizing a Signal Implementing Differential Pulse Code Modulation Companding a Signal Selected Bibliography for Source Coding Block Coding Organization of This Section Accessing Block Coding Blocks Block Coding Features of the Blockset Communications Toolbox Support Functions Channel Coding Terminology Data Formats for Block Coding Using Block Encoders and Decoders Within a Model Examples of Block Coding Notes on Specific Block Coding Techniques Selected Bibliography for Block Coding Convolutional Coding Organization of This Section Accessing Convolutional Coding Blocks Convolutional Coding Features of the Blockset Parameters for Convolutional Coding Examples of Convolutional Coding Selected Bibliography for Convolutional Coding Interleaving Interleaving Features of the Blockset Block Interleavers Convolutional Interleavers Selected Bibliography for Interleaving Analog Modulation Accessing Analog Modulation Blocks Analog Modulation Features of the Blockset Baseband Modulated Signals Defined Representing Signals for Analog Modulation Timing Issues in Analog Modulation Filter Design Issues Digital Modulation Accessing Digital Modulation Blocks Digital Modulation Features of the Blockset Representing Signals for Digital Modulation Delays in Digital Modulation Upsampled Signals and Rate Changes Examples of Digital Modulation Selected Bibliography for Digital Modulation Channels Channel Features of the Blockset AWGN Channel Fading Channels Binary Symmetric Channel Selected Bibliography for Channels Synchronization Synchronization Features of the Blockset Overview of PLL Simulation Implementing an Analog Baseband PLL Implementing a Digital PLL Selected Bibliography for Synchronization Index of Examples Reference Function Reference Alphabetical List of Functions comm_links commlib Block Reference Communications Sources Communications Sinks Source Coding Channel Coding Block Coding Convolutional Coding Interleaving Block Interleaving Convolutional Interleaving Modulation Digital Baseband Modulation Analog Baseband Modulation Digital Passband Modulation Analog Passband Modulation Channels Synchronization Basic Communications Functions Integrators Sequence Operations Utility Functions Alphabetical List of Blocks A-Law Compressor A-Law Expander Algebraic Deinterleaver Algebraic Interleaver APP Decoder AWGN Channel Baseband PLL BCH Decoder BCH Encoder Bernoulli Random Binary Generator Binary Cyclic Decoder Binary Cyclic Encoder Binary-Input RS Encoder Binary Linear Decoder Binary Linear Encoder Binary-Output RS Decoder Binary Symmetric Channel Binary Vector Noise Generator Bit to Integer Converter BPSK Demodulator Baseband BPSK Modulator Baseband Charge Pump PLL Complex Phase Difference Complex Phase Shift Continuous-Time Eye and Scatter Diagrams Convolutional Deinterleaver Convolutional Encoder Convolutional Interleaver CPFSK Demodulator Baseband CPFSK Demodulator Passband CPFSK Modulator Baseband CPFSK Modulator Passband CPM Demodulator Baseband CPM Demodulator Passband CPM Modulator Baseband CPM Modulator Passband Data Mapper DBPSK Demodulator Baseband DBPSK Modulator Baseband Deinterlacer Derepeat Descrambler Differential Decoder Differential Encoder Discrete Modulo Integrator Discrete-Time Eye and Scatter Diagrams Discrete-Time VCO DPCM Decoder DPCM Encoder DQPSK Demodulator Baseband DQPSK Modulator Baseband DSB AM Demodulator Baseband DSB AM Demodulator Passband DSB AM Modulator Baseband DSB AM Modulator Passband DSBSC AM Demodulator Baseband DSBSC AM Demodulator Passband DSBSC AM Modulator Baseband DSBSC AM Modulator Passband Enabled Quantizer Encode Error Rate Calculation FM Demodulator Baseband FM Demodulator Passband FM Modulator Baseband FM Modulator Passband Gaussian Noise Generator General Block Deinterleaver General Block Interleaver General Multiplexed Deinterleaver General Multiplexed Interleaver General QAM Demodulator Baseband General QAM Demodulator Passband General QAM Modulator Baseband General QAM Modulator Passband GMSK Demodulator Baseband GMSK Demodulator Passband GMSK Modulator Baseband GMSK Modulator Passband Hamming Decoder Hamming Encoder Helical Deinterleaver Helical Interleaver Insert Zero Integer-Input RS Encoder Integer-Output RS Decoder Integer to Bit Converter Integrate and Dump Interlacer Linearized Baseband PLL Matrix Deinterleaver Matrix Helical Scan Deinterleaver Matrix Helical Scan Interleaver Matrix Interleaver M-DPSK Demodulator Baseband M-DPSK Demodulator Passband M-DPSK Modulator Baseband M-DPSK Modulator Passband M-FSK Demodulator Baseband M-FSK Demodulator Passband M-FSK Modulator Baseband M-FSK Modulator Passband Modulo Integrator M-PAM Demodulator Baseband M-PAM Demodulator Passband M-PAM Modulator Baseband M-PAM Modulator Passband M-PSK Demodulator Baseband M-PSK Demodulator Passband M-PSK Modulator Baseband M-PSK Modulator Passband MSK Demodulator Baseband MSK Demodulator Passband MSK Modulator Baseband MSK Modulator Passband Mu-Law Compressor Mu-Law Expander Multipath Rayleigh Fading Channel OQPSK Demodulator Baseband OQPSK Demodulator Passband OQPSK Modulator Baseband OQPSK Modulator Passband Phase-Locked Loop PM Demodulator Baseband PM Demodulator Passband PM Modulator Baseband PM Modulator Passband PN Sequence Generator Poisson Int Generator Puncture QPSK Demodulator Baseband QPSK Modulator Baseband Quantizer Decode Random Deinterleaver Random-Integer Generator Random Interleaver Rayleigh Noise Generator Rectangular QAM Demodulator Baseband Rectangular QAM Demodulator Passband Rectangular QAM Modulator Baseband Rectangular QAM Modulator Passband Rician Fading Channel Rician Noise Generator Sampled Quantizer Encode Scrambler SSB AM Demodulator Baseband SSB AM Demodulator Passband SSB AM Modulator Baseband SSB AM Modulator Passband Triggered Read From File Triggered Write to File Uniform Noise Generator Viterbi Decoder Voltage-Controlled Oscillator Windowed Integrator Printable Documentation (PDF) Product Page (Web)