| 摘要 |
#CMT# #/CMT# The method involves providing a model and an interpolated model with a memory and supplying an input signal to the input of the electrical network. The output signal of the electrical network is sampled at a frequency derived from the input signal bandwidth and is less than a value equal to twice the output signal bandwidth. A digital baseband signal is supplied to the model and the resulting digital output signal is compared with the sampled output signal to determine parameters for the model. The parameters are then transmitted to the interpolated model to approximate its transmission response to the transmission response of the electrical network. #CMT# : #/CMT# An independent claim is also included for a use of a method for producing a memory afflicted system to represent a model of an electrical network. #CMT#USE : #/CMT# Used in representing an electrical network exhibiting a memory effect, e.g. for predistortion purposes in an RF power amplifier of a W-CDMA base station, using a model such as a Wiener or parallel Wiener model, a Hammerstein model, and models with purely steady-state non-linearities, for example AM/AM or AM/PM distortion. #CMT#ADVANTAGE : #/CMT# The method enables the modeling of the electrical network exhibiting a memory effect in a simple manner with reduced scanning rates, including rates below the Nyquist criterion, and produces good results. #CMT#DESCRIPTION OF DRAWINGS : #/CMT# The drawing is a system-theoretical representation for determining a model for description of an electrical network. 4` : Electrical network. |
