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Visualyse Professional News What's New? We aim to keep Visualyse Professional relevant to the needs of our users through a program of maintenance and development that is based on your feedback.
Each time we release a new version the maintenance history of the software is updated and distributed to all users.
This newsletter will give you highlights of the last few updates and point you to sources of more detailed information.
The complete maintenance history can be found here
Google Earth Visualyse Professional Release 2.7 includes a new feature allowing you to overlay Area Analyses on Google Earth maps.
We have been playing around with this for a while and found that it adds great value to area analysis.
Google Earth adds GIS type information to the detailed technical analysis that Visualyse Professional allows you to do, greatly improving the impact and presentation of the data.
Download Google Earth for free here
You can download a white paper on the whole subject here
Examples 3D Google Earth map showing exclusion zones around a radar site, within which wind farms should not be deployed.
Google Earth map overlaid with a Visualyse colour coded coverage prediction. In this case green areas indicate good coverage from the cellular base station.
We like the examples above because they show clearly the effect of the terrain. Note how the exclusion zone and coverage areas are reduced by terrain shadowing effects.
Appendix 7 Path loss contours around an earth station – use this view to bring your coordination contours to life.
Keeping UP with the ITU Keeping up with developments in the ITU context is a major part of our strategy.
GIMS Visualyse Professional now supports GIMS release 6.4 as found on the SRS 2007-1 DVD, and is updated each time the GIMS data format changes.
SRS Visualyse Professional now supports the latest version of the SRS as found on the SRS 2007-1 DVD.
Propagation In addition we have recently updated the following propagation models:
ITU-R P.452-12 – this is the currently favoured model for calculating interference along terrestrial paths. Visualyse Professional implements this with a Monte-Carlo option to generate fading and enhancement statistics.
ITU-R P.526-9 – this is the diffraction over irregular terrain part of the terrestrial path. We implement the `3 knife edge modified Deygout construction, and the smooth earth models.
ITU-R P.676-6 – this model was updated to be compatible with the latest version of the Recommendation.
ITU-R P.1546-2 – revision 2 of this popular terrestrial propagation model has been implemented. The latest version of this point to area model allows you to enter the ‘percentage of locations’ to use in the calculation.
ITU-R P.530 – this recommendation, used, among other things, in the design of terrestrial fixed links where multipath fading is important has gone through many revisions.
Hata / COST 231 Model – though not specific to ITU-R recommendations, the Hata model is well known point to area model that has been subject to empirical validation. Visualyse Professional now contains an implementation of the Modified Hata Model as per ERC Report 68 page 21.
ITU-R P. [UWB.PROP] – soon to be a recommendation this model is applicable to ultra-wideband systems & urban environments. It features dual slope, log normal fading and indoor-outdoor loss components.
ITU-R SF.1395 – modeling minimum propagation attenuation due to atmospheric gases, for use in frequency sharing studies between the fixed-satellite service and the fixed service, this is a new model added to Visualyse Professional.
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us for more information about Visualyse Professional.
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