MODELING AND SIMULATION FOR RF SYSTEM DESIGN

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276 References
subsequent signal values is high. This problem can be reduced by decreasing
the time between successive sampling points. However this will also slow
down the simulation speed in the discrete domain. Another way is the use of
functions, which reduce the gradient of the signals. Such functions are often
available in mixed-signal simulators. For example Verilog-AMS provides
the operators transition and slew.
Figure 12-4. Conversion from continuous to time discrete signals
Figure 12-5. Conversion from time discrete signals to continuous signals
Cosimulation example (SPW and AMS Designer)
The usage of cosimulation is illustrated by means of the commercial
cosimulation solution for the system level simulator SPW (Coware) and the
mixed-signal simulator AMS Designer (Cadence). The digital baseband
processing of a wireless LAN system is modeled and analyzed in SPW. A
detailed analog behavioral model of the RF subsystem is included by
cosimulation with AMS designer. The modeling flow is outlined below.

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Summary :

Conversion from time discrete signals to continuous signals Cosimulation example (SPW and AMS Designer) The usage of cosimulation is illustrated by means of the commercial cosimulation solution for the system level simulator SPW (Coware) and the mixed-signal simulator AMS Designer (Cadence).

Tags : signals,cosimulation,spw,time,discrete,designer,ams,simulator,example,system,figure,functions,mixedsignal
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