## INTRODUCTION TO SIGNALS AND SYSTEMS AND DIGITAL SIGNAL PROCESSINGWith an interesting approach to educate the students in signals and systems, and digital signal processing simultaneously, this book not only provides a comprehensive introduction to the basic concepts of the subject but also offers a practical treatment of the modern concepts of digital signal processing. Written in a cogent and lucid manner, the book is addressed to the needs of undergraduate engineering students of electrical, electronics, and computer disciplines, for a first course in signals and digital signal processing. |

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analog signal aperiodic signal application Appoint DFT arbitrary number band pass signal cascade form causal cepstrum circuit circular convolution complex multiplications computation data sequence decimation described developed DFT of x(k difference equation digital signal processing direct form structure discrete Fourier transform discrete signal discrete time signal discrete time system equal Example exponential signal expressed factor FFT algorithm final value theorem FIR filter FIR system Fourier coefficient Fourier series frequency response Hence IDFT impulse function impulse response input signal integral interpolation invariant system inverse Laplace transform lattice structure Limit ncot dt number of multiplications one-sided Z-transform parameters processors quantization Radix-4 recorder recursive system region of convergence representation sampling frequency sampling rate conversion sequence x(k shifting shown in Figure signal x(n Solution Suppose symmetry T-section termed unit circle unit impulse voltage waveform X(co Z-parameter Z-transform Z-transform of x(K zero