System Modeling Techniques And Engineering Research

The airplane sensors which come from traditional separation equipment is developed into incompact conjunction system,then farther evolve into the new highly integrated avionic device which are compact coupling and integration。as a result of information in the new avionic system are rapidly increaseing, requirement for the data processing ability and the high bus bandwith with low transmission latency are growth quickly。all of these result in the increment rate of the system complicacy as geometric series,designing of the system are become more and more difficult。one the other hand, increasingly violent competition of the market desire the product design periods shorten to the best。Traditionally design method which are based on document and manual calculation are can't satisfy the requirement of the integration system designing。Then many company in the world are hammer at system design method dang desing flow which based on module driving,to improve desing quality and efficiency。The dissertation describes the background and the application of the subject; expatiates system desing actuality;introduces the theory of Actor Oriented modeling method,PtolemyII is the representative tool of this method;introduction the composing and characteristic of the model in VisualSim,the methodology constituent and the flow of the modeling which based on VvisualSim are introduced too。Besides this,the signal processing modeling design of the UV communication and Radar integration are presented as an example,to explain the advantage of the modeling design method to traditional design method。During the subject researching,together with the processing flow of the UV communication and radar,two of hardware structure are presented too。depend upon using VisualSim,showing how to use modeling tools to build software model and hardware model of the integrated signal processing systems separately,then make use of virtual mapping method to deploy software on the hardware。Using these method,designer can analyse software deposit,execute flow and bottleneck of the system performance before hardware be implemented,can validate and analyse the comprehensive of the hardware,thereby allowing the hardware design and software design of the system optimized concurrently。...