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ao

  • Two scripts are included here. 1. convsys.m - combines the state space representation of two syst

    Two scripts are included here. 1. convsys.m - combines the state space representation of two systems connected in series. [ao,Bo,Co,Do]=convsys(A1,B1,C1,D1,A2,B2,C2,D2) This algorithm gives the convolution of two state space representations | A1 B1 | | A2 B2 | u ==> | | ==> | | ==> y | C1 D1 | | C2 D2 | The algorithm also accepts state space objects as inputs and gives out a state space object as output. 2. sysfeedbk.m [ao,Bo,Co,Do]=convsys(A1,B1,C1,D1,A2,B2,C2,D2) Gives the closed loop state space representation for two systems connected with negative feedback in the following manner. | A1 B1 | u ==> | | ==> y + o | C1 D1 | | - | | | | A2 B2 | | |= | |= | | C2 D2 | The zip file also contains checkcompatibility.m , which checks the compatibility of matrix dimensions in the system and cleanss.m which can be used to clean a state space representation.

    标签: representation included combines scripts

    上传时间: 2017-07-25

    上传用户:semi1981

  • 射频锁相环基础理论

    一.基础理论锁相环路(Phase Locked Loop)是一个闭环的相位控制系统,它的输出信号的相位能自动跟踪输入信号相位。系统框图如下:当0,(1)与0:(1)相等时,两矢量以相同的角速度旋转,相对位置,即夹角维持不变,通常数值又较小,这就是环路的锁定状态。从输入信号加到锁相环路的输入端开始,一直到环路达到锁定的全过程,称为捕获过程。设系统最初进入同步状态[2nrtto,e,.]的时间为1。。那么从1=1,的起始状态到达进入同步状态的全部过程就称为锁相环路的捕获过程。捕获过程所需的时间T,=1,-1,称为捕获时间。显然,捕获时间T,的大小不但与环路的参数有关,而且与起始状态有关。对一定的环路来说,是否能通过捕获而进入同步完全取决于起始频差8.(4)-ao。。若ao,超过某一范围,环路就不能捕获了。这个范围的大小是锁相环路的一个重要性能指标,称为环路的捕获带ao,。

    标签: 射频锁相环

    上传时间: 2022-06-21

    上传用户: