Signal flow graph Introduction to Digital Signal Processing--Digital Filter Realization x(n) z1 ◆x(n-1) x(n) x(n-1) x(n) ar(n） a x(n) 。ax(n) x (n) x(n)+x2(n) x (n) xn）+z(m） x2(n) x2(n) 上游充通大
Introduction to Digital Signal Processing—— Digital Filter Realization Signal flow graph x n( ) ax n( ) a x n( ) x n( 1) 1 z x n( ) x n( 1) 1 z x n( ) ax n( ) a 1 2 x n 1( ) x n x n ( ) ( ) 2 x n( ) 1 2 x n 1( ) x n x n ( ) ( ) 2 x n( )
Signal flow graph Introduction to Digital Signal Processing--Digital Filter Realization A signal flow graph provides an alternative,but equivalent, graphical representation to a block diagram structure that we have been using to illustrate various system realizations.The basic elements of a flow graph are directed branches and nodes. A signal flow graph is basically a set of directed branches that connect at nodes. 大 By definition,the signal out of a branch is equal to the branch gain times the signal into the branch.Furthermore, the signal at a node of a flow graph is equal to the sum of the signals from all branches connecting to the node. When the branch transmittance is unity,it is left unlabeled. The input to the system originates at a source node and the output signal is extracted at a sink node. 上降充通大
Introduction to Digital Signal Processing—— Digital Filter Realization Signal flow graph A signal flow graph provides an alternative, but equivalent, graphical representation to a block diagram structure that we have been using to illustrate various system realizations. The basic elements of a flow graph are directed branches and nodes. A signal flow graph is basically a set of directed branches that connect at nodes. By definition, the signal out of a branch is equal to the branch gain times the signal into the branch. Furthermore, the signal at a node of a flow graph is equal to the sum of the signals from all branches connecting to the node. When the branch transmittance is unity, it is left unlabeled. The input to the system originates at a source node and the output signal is extracted at a sink node