| Version 2.0.1 (R12.1) Communications Blockset™ Software Release Notes Release Notes | |
This table summarizes what's new in Version 2.0.1 (R12.1):
| New Features and Changes | Version Compatibility Considerations | Fixed Bugs and Known Problems | Related Documentation at Web Site |
|---|---|---|---|
| Yes Details below | Yes—Details labeled as Compatibility Considerations, below. See also Summary. | Fixed bugs | No |
New features and changes introduced in this version are
The new commstartup.m script sets certain Simulink preferences to values that are most appropriate for the simulation of communication systems. To use this script, type the command commstartup in your startup.m file or in the MATLAB Command Window.
The Utility Functions library contains new blocks that convert between bipolar and unipolar signals. The blocks are Bipolar to Unipolar Converter and Unipolar to Bipolar Converter.
The randseed function is a new function that generates prime numbers for use as Initial seed parameters in blocks that produce random output. Compared to composite seeds, prime seeds yield output that has better statistical properties.
You can now configure the Error Rate Calculation block so that it automatically stops the simulation upon detecting a specified number of errors. You do not need to know in advance how long it will take to accumulate that many errors.
The Discrete Modulo Integrator block now allows you to choose the integration method using a mask parameter. The corresponding mask parameter in the Windowed Integrator block has changed its name from Method to Integration method for consistency with other integration blocks.
The M-FSK Baseband Modulator, M-FSK Baseband Demodulator, M-FSK Passband Modulator, and M-FSK Passband Demodulator blocks now use the correct tone spacing.
The PN Sequence Generator block now generates only binary values, and the numbers in the sequence do not depend on the frame status or size.
The Binary Symmetric Channel block dialog box now omits the Input vector length and Sample time parameters because the block now determines these quantities automatically. However, if you open a model in Release 12.1 that contains the Release 12.0 Binary Symmetric Channel block, then the Command Window might display warnings about block parameters. To suppress these warnings in the future, simply save the model from Release 12.1.
Any model that includes a digital passband modulator block or a digital passband demodulator block must use a variable-step solver rather than a fixed-step solver. To configure a model so that it uses a variable-step solver, select Simulation parameters from the model window's Simulation menu and then set the Type parameter on the Solver panel to Variable-step.
| Version 2.5 (R13) Communications Blockset™ Software Release Notes | Version 2.0 (R12) Communications Blockset™ Software Release Notes | |
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