Linear Electrical Discrete Time Simulation with Convolution — Ansoft Designer 7.0 在线帮助文档，Ansys Designer 教程

淘宝官方店推荐课程在线工具联系方式关于我们

	微波射频仿真设计 Ansoft Designer 中文培训教程 \| HFSS视频培训教程套装
	Agilent ADS 视频培训教程 \| CST微波工作室视频教程 \| AWR Microwave Office

Linear Electrical Discrete Time Simulation with Convolution

During signal analysis, all electrical components and sub-designs are converted to time domain behavioral models (i.e., unidirectional models). This time domain model is extracted from the corresponding frequency response evaluated during the course of the simulation. For example, the linear electrical sub-design for the PLL example project shown previously is identified on the schematics in Figure 4.

The extracted time domain behavioral models will typically contain the transient, steady state, and noise responses of the electrical sub-design (all in accordance with the frequency-domain signal and noise response of the electrical sub-design as well as impedance mismatches within the sub-design). Therefore, the processing of modulated signals through electrical components/sub-designs will include the transient, steady state, group delay, and noise effects.

There are two techniques available for discrete time simulation of linear electrical components and sub-designs: Convolution and Impulse Invariance. Convolution analysis, which will be discussed in detail in this section, is a general technique for simulating mixed mode systems. Impulse Invariance analysis, discussed in the following section, is at least an order of magnitude faster than convolution, but it is limited to solving systems that can be represented with a finite number of poles.

Consider a multi-port linear electrical sub-design with the functional component connections shown in Figure 5 below. Note that the assumptions discussed above regarding a functional-electrical connection are reflected on the figure. In addition, assume that the system has N input ports and M output ports as shown below.

The topics for this section include:


Copyright © 2006 - 2013 微波EDA网, All Rights Reserved 业务联系：mweda@163.com