发明名称 |
System and method for modeling mixed signal RF circuits in a digital signal environment |
摘要 |
A behavioral model for mixed signal RF circuits. The model approximates non-linear filtering effects for base-band (i.e. suppressed carrier) end-to-end systems analysis. The new model, the K-model, is a linear MIMO (multi-input-multi-output) model with output radius corrected by a non-linear SISO (single-input-single output) model and output angle corrected by a non-linear rotation. The SISO model uses a multi-tanh structure to synthesize a non-linear filter. The multi-tanh structure simulates non-linear behavior by gently switching between transfer functions as the base-band input varies. For excursions well into the steady state non-linear region of operation the K-model simulates large-signal base-band transients to within about 10 percent of those simulated with detailed unsuppressed-carrier models.
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申请公布号 |
US6181754(B1) |
申请公布日期 |
2001.01.30 |
申请号 |
US19980096555 |
申请日期 |
1998.06.12 |
申请人 |
CADENCE DESIGN SYSTEMS, INC. |
发明人 |
CHEN JESSE E. |
分类号 |
H04B1/30;H04L27/00;(IPC1-7):H04B1/10 |
主分类号 |
H04B1/30 |
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