Interpolation Procedure for Cascading S-Parameters to Prevent Aliasing
This paper describes a methodology for re-sampling S-parameters in a manner that prevents aliasing when combining multiple S-parameter sets.In high speed serial data link systems, S-parameters are often used to describe the characteristic behavior 1,2.A complex system may be composed of multiple subsystems.Each subsystem can be represented by one S-parameter set.There is a need to combine these S-parameter sets to obtain the model for the complete system.It is required that S-parameter data covers a specific bandwidth of interest.It is also required that the S parameter data has frequency resolution that is fine enough to prevent aliasing 3.This means that the frequency resolution needs to be fine enough to provide a time interval long enough to cover the impulse response duration plus the reflections duration.Even though all the S-parameter data for an individual block may have appropriate frequency resolution, the same frequency resolution may become inadequate when combining them together in a cascade.
cascade S-parameters aliasing resampling zero fill frequency spacing time interval measurement serial data link analysis
Kan Tan John Pickerd
Tektronix Beaverton,Oregon,USA
国际会议
哈尔滨
英文
37-42
2013-08-16（万方平台首次上网日期，不代表论文的发表时间）