Signals and Systems - Electrical Engineering

404 C H A P T E R 6: Application to Control and Communications 0 (a) (b) (c) (d) 5 10 0 0.2 0.4 0.6 0.8 1 Ω LP Prototype |H (j Ω ...

6.5 Analog Filtering 405 6.5.5 Filter Design with MATLAB The design of filters, analog and discrete, is simplified by the functi ...

406 C H A P T E R 6: Application to Control and Communications W = 0:0.001:Wmax; % frequency range for plotting H = freqs(b, a, ...

6.5 Analog Filtering 407 %%%%%%%%%%%%%%%%%%% % Example 6.11 -- Filter design using analogfil %%%%%%%%%%%%%%%%%%% clear all; clf ...

408 C H A P T E R 6: Application to Control and Communications n passband frequencies [10, 20] rad/sec n unit gain in the passba ...

Problems 409 6.6 What Have We Accomplished? What Is Next? In this chapter we have illustrated the application of the Laplace and ...

410 C H A P T E R 6: Application to Control and Communications (c) By mistake we input the received signal into the demodulator, ...

Problems 411 (b) If we letG(s)=sin the previous feedback system, determine the overall transfer functionY(s)/X(s) whereX(s)andY( ...

412 C H A P T E R 6: Application to Control and Communications we need to multiply polynomials to getY(s)before we perform parti ...

Problems 413 (d) Consider the situation wheref 0 =2 KHz, but the parameters of the paths are random, trying to simulate real sit ...

414 C H A P T E R 6: Application to Control and Communications n The half-power frequencyhpof the filter. n The passband freque ...

Problems 415 (c) Design a band-pass filter to get rid of the hum. Plot the output of the band-pass filter. (d) Is any of these a ...

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3 PART Theory and Application of Discrete-Time Signals and Systems ...

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CHAPTER 7 Sampling Theory...................................................................................... The pure and sim ...

420 CHAPTER 7: Sampling Theory the bridge between analog and discrete signals and systems and were the starting point for digita ...

7.2 Uniform Sampling 421 and its Fourier transform is XPAM()= ∑ k PkX(−k 0 ) showing that PAM is a modulation of the train of ...

422 CHAPTER 7: Sampling Theory where the Fourier coefficients{Dk}are Dk= 1 Ts T∫s/ 2 −Ts/ 2 δTs(t)e−jkstdt= 1 Ts T∫s/ 2 −Ts/ 2 ...

7.2 Uniform Sampling 423 n Equation (7.7) provides the relation between the continuous frequency(rad/sec) of x(t)and the discre ...