By Steve White
ISBN-10: 0766815315
ISBN-13: 9780766815315
This new source introduces the strategies, equations, and terminology of electronic sign Processing, and likewise presents the instruments had to learn and layout electronic filters. With emphasis on electronic filtering, this booklet applies the reader's wisdom of AC circuits, trigonometry, algebra, calculus and analog filter out layout to electronic sign processing. This booklet additionally assists clients within the realizing and use of obtainable electronic filtering software program to satisfy layout standards. (Keywords: electronic Electronics)
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Additional resources for Digital Signal Processing: A Filtering Approach
Sample text
Determine the z-transform of the following sampled signal. 2)u(n) 9. 05 s. x(t) = 7tu(t) 10. Determine the z-transform of the following sampled signal. 37nu(n) 11. 005 s. −15 X (s) = s 52 z-Transforms 12. 025 s. X(x) = 5 s + 10 13. Determine the z-transform for the following sampled signal. 4u(n − 1) + 4δ(n) 14. Determine the equation of the following sampled pulse x(n), using the sampled unit step function. x(n) is –3 for n = –1 through and including n = 4 and zero for all other n’s. 15. Determine the equation of the following sampled pulse signal.
Determine the equation of the following sampled pulse signal. x(n) = –3u(n) + 3u(n – 7) 16. Given the only nonzero sample values of the following signal, determine the z-transform of the signal. x(–1) = 2, x(0) = –1, x(2) = 1, x(3) = –4 17. 05 s. x(t) = 3e−7t cos(25t)u(t) Problems 1. Determine the z-transform of the following sampled signal. x(n) = −6u(n) 2. Determine the z-transform of the following sampled signal. 7e−5nu(n) 51 Digital Signal Processing 3. 02 s. x(n) = −7sin(124t)u(t) 4. Determine the z-transform of the following sampled signal.
Earlier we said we would develop this shifting property in another way, which is actually more intuitive. All we need to do is to look at a few simple sampled signals and compare their z-transforms with and without delays in the sampled-time domain. First let’s look at a signal f 1(n) that consists of a single sample at nT of 5, and then at a signal, f 2(n) of two samples of 2 at nT and 3 at (n + 1)T . Let g1(n) be the signal f 1(n) delayed by 2T or g 1(n) = f 1(n – 2), and g2(n) be the signal f 2(n) delayed by 5T or g2(n) = f 2(n – 5).
Digital Signal Processing: A Filtering Approach by Steve White
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