Behavioural modelling and simulation for heterogeneous design applied to aerospace inertial microinstrumentation development

摘要

The extended use of microelectromechanical systemsrn(MEMS) in the development of new microinstrumentationrnfor aerospatial applications, which combine extremernsensitivity, accuracy and compactness, introduced thernneed to simplify their design process in order to reduce therndesign time and cost. The recent apparition of analoguernand mixed signal extensions of hardware descriptionsrnlanguages (VHDL-AMS, Verilog-AMS & SystemC-AMS)rnpermits to co-simulate the HDL (VHDL and Verilog)rndesign models for the digital signal processing andrncommunication circuitry with behavioral models for thernnon digital parts (analog and mixed signal processing, RFrncircuitry and MEMS components). Since the beginning ofrnthe microinstrumentation design process the modeling andrnsimulation could help to define better the specificationsrnand in the architecture selection and in the SoC designrnprocess in a more realistic environment. We will presentrnour experience in the application of these languages in therndesign of microinstruments by using behavioral modelingrnof MEMS.