Giao trinh bai tap dsp chapter1 student 21062015

... edges {x0 , x1 }, {x1 , x2 }, , {xn−1 , xn }, where x0 = u and xn = v • A path is a circuit (chu trình) if it begins and ends at the same vertex, u = v Contents Connectivity Paths and Circuits ... Connectivity Paths and Circuits Euler and Hamilton Paths Euler Paths and Circuits • Euler Circuit (chu trình Euler ) is a path in the graph that passes each edge only once and return back to its original ... and Hamilton Paths Euler Paths and Circuits Hamilton Paths and Circuits Rule No subcircuit (chu trình con) can be formed Shortest Path Problem Dijkstra’s Algorithm Rule Once two edges at a vertex...

...

... x(nT)≡x(n) Quantizer xQ(n) Coder A/D converter x(n) t Digital Signal Processing 1 10 1 0 n 11 1 xQ(n) 1 10 10 1 10 0 01 1 01 0 00 1 00 0 n Sampling and Reconstruction Sampling  Sampling is to convert a continuous ... 2cos (2 n)  2cos(  n) Fs 81   2cos( (2  ) n)  2cos( n) 4 11 x2 (n)  x2 (nT )  x2 (n )  2cos (2 n)  2cos(  n) Fs 81 x1 (n)  x1 (nT )  x1 (n  Observation: x1(n)=x2(n)  based on the discrete-time ... signals x1 (t )  2cos (2 t ), x2 (t )  2cos (2 t ); t ( s) 8 These signals are sampled at the sampling frequency Fs =1 Hz Find the discrete-time signals ? Solution: 71 )  2cos (2 n)  2cos( ...