| Version 4.0 (R2007b) Communications Toolbox™ Software Release Notes Release Notes | |
This table summarizes what's new in Version 4.0 (R2007b):
| New Features and Changes | Version Compatibility Considerations | Fixed Bugs and Known Problems | Related Documentation at Web Site |
|---|---|---|---|
| Yes Details below | No | Bug Reports Includes fixes. | Printable Release Notes: PDF Current product documentation |
New features and changes introduced in this version are
The doppler.bigaussian function creates a bivariate Gaussian Doppler spectrum object, which is used in the DopplerSpectrum property of a channel object.
Channel objects and channel visualization tool are enhanced to support different Doppler spectra per path.
All paths now have the option of being Rician-faded (previously only the first path of a Rician multipath fading channel could be Rician-faded).
Each path can be assigned different values for the K and fdLOS parameters.
See the ricianchan reference page for details.
New demos modeling COST 207, GSM/EDGE, and HF are added.
These can be accessed through the demos pane of the Help browser, or by typing chandemo_cost207 and chandemo_hf at the command line.
New eye diagram object is added, that uses color to convey how often a trace traverses a point.
New PAM, OQPSK, DPSK, MSK, and General QAM modem objects are added.
Theoretical BERs added to BERTool for hard-decision and soft-decision decoding with AWGN. Existing results in bercoding are made more precise.
The new stdchan object constructs channel objects according to standardized channel models, including COST 207, GSM/EDGE, 3GPP, and ITU-R.
The bchenc function now runs faster, especially for longer codeword lengths.
| Version 4.1 (R2008a) Communications Toolbox™ Software Release Notes | Version 3.5 (R2007a) Communications Toolbox™ Software Release Notes | |
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