源文件习题答案第9章函数例

1、【例 9-8】用Level-2 M 文件型 S-函数(MySFunction8.m)【例 9-8】用Level-2 M 文件型 S-函数(MySFunction8.m)描述()，其内容如下X0(n101)0AX(n)10AX0(0)1,B00,C010,E(e1e2function setup(block) block.NumInputPorts =block.NumOutputPorts=block.InputPort(1).Da ypeID = 0; block.InputPort(1).Complexity = Real; = 1; block.OutputPort(1).Da ypeI

2、D = 0; % double block.OutputPort(1).Complexity = Real;s2;一个输出端口包含两个输出 block.NumDialogPrms = 2; %外部传入两个参数E、q block.DialogPrmsTunable = Tunable, Tunable;leTimes = 0.1 0; %采样周期为 0.1，偏置量为 0 tPropagationSetup,Doblock.RegBlockMethod(InitializeConditions,InitializeConditions); block.RegBlockMethod(Outputs,

3、 Outputs); block.RegBlockMethod(Update, Update);function Dox1;1= 1; block.Dwork(1).Da ypeID= 0;%double = Real; % real block.Dwork(1).UsedAsDiscS e = true;= x2; %2 个离散状= 1; block.Dwork(2).Da ypeID= 0;%double=Real;%在 在 block.Dwork(2).UsedAsDiscS e = true; = 1; block.Dwork(3).Da ypeID= 0;%double = Real

4、; % real block.Dwork(3).UsedAsDiscS e = true; function InitializeConditions(block) block.Dwork(1).Data = 0; %为第1 个离散状态赋block.Dwork(2).Data = 0; %为第2 个离散状态赋block.Dwork(3).Data = 0; %为第3 个离散状态赋functionfunction block.Dwork(3).Data = block.DialogPrm(1).Data(1)* block.Dwork(1).Data+ block.DialogPrm(1).Data(2)* block.Dwork(2).Data+ . block.DialogPrm(1).Data(3)* block.Dwork(3).Data+ block.