Raytheon Systems Ltd. is one of the world leaders
in the supply of Monopulse Secondary Surveillance Radars (MSSR) for Air
Traffic Management (ATM). Over 200 of its systems are in use worldwide.
Secondary Surveillance Radar (SSR) differs from Primary
Surveillance Radar in that it relies on the co-operation of the target.
It does not simply register the echo returned by the target in response
to a radio frequency pulse. A Secondary Radar transmits a radio signal
on a certain frequency, to which the aircraft responds on a different
frequency.The reply can contain useful information such as target identification,
height and other flight parameters.
Raytheon Systems is frequently required to model the
performances of MSSR systems for installation worldwide. Customers can
either prepare sites that they wish to use for their radar equipment or
seek guidance on the best site location. HTZ Warfare helps to decide on
the best site according to infrastructure and environmental considerations.
The significant increase in site surveys being undertaken
led Raytheon to automate its coverage prediction processes. The company
purchased the HTZ Warfare (Radar) product to assist in the generation
of coverage diagrams required to support existing and future business.
Before the tool was made publicly available, a user guide and default
parameter files were produced to ensure both ease of use and consistency
of modelling across projects.
Once the system was set up, modelling the radar coverage
became simply a matter of obtaining the relevant digital terrain maps
and then entering the co-ordinates and site parameters.