76 y lian ee3101 digital signal processing lecture notes jun 2010

... to any industry standard, or are suitable for any application The author, publisher, and distributors disclaim all liability and responsibility to any person or entity with respect to any loss ... technical world is changing very rapidly In only 15 years, the power of personal computers has increased by a factor of nearly one-thousand By all accounts, it will increase by another factor of one-thousand ... Engineer's Guide to Digital Signal Processing Second Edition by Steven W Smith California Technical Publishing San Diego, California The Scientist and Engineer's Guide to Digital Signal Processing Second...

Ngày tải lên: 13/09/2012, 10:21

... computational power, they were heavily used by the oil industry for geologic signal processing and by the telecommunications industry for speech processing The theory of digital filters matured, ... INTRODUCTION TO DIGITAL SIGNAL PROCESSING AND FILTER DESIGN INTRODUCTION TO DIGITAL SIGNAL PROCESSING AND FILTER DESIGN B A Shenoi A JOHN WILEY & SONS, INC., PUBLICATION Copyright © 2006 by John Wiley & ... technology, the theory and applications of digital signal processing has explosively advanced in the last few decades The two revolutionary results that have formed the foundations of digital signal processing...

Ngày tải lên: 13/09/2012, 10:21

... computational power, they were heavily used by the oil industry for geologic signal processing and by the telecommunications industry for speech processing The theory of digital filters matured, ... technology, the theory and applications of digital signal processing has explosively advanced in the last few decades The two revolutionary results that have formed the foundations of digital signal processing ... Filter y( t) Figure 1.17 Example of a digital signal processing system 1.5 ANALOG AND DIGITAL SIGNAL PROCESSING The basic elements in digital filters are the multipliers, adders, and delay elements,...

Ngày tải lên: 29/09/2013, 21:20

... open_out(out_fn) ; y: =0 ; for k:=1 to nsamples begin output(scale *y) ; y: =r *y+ (1-r)*input ; if (k mod 2000)=0 then write(‘.’) ; end ; stop ; end Bild Pascal-Quell- kode des digitalen Filters LP1 ... werden wir dann ein paar echte Signale mit dem Spektrumanalyser analysieren und mit dem Thema Filterung fortfahren Bild 10 Fensterung heißt Multiplikation des Signals mit einer Fensterfunktion ... Bild Ein Sweep -Signal wird durch den Tiefpaß geleitet aber nicht stark ab Wie kommt die DFT zu diesem Ergebnis, daß alle Frequenzen im Signal ein wenig vorkommen? Bild zeigt, daß beim Signal tmp1.wav...

Ngày tải lên: 16/10/2013, 01:15

... Unitary vs nonunitary systems — A unitary filter bank has the same analysis and synthesis filters (except for a reversal of the unit sample responses in the synthesis filters with respect to the analysis ... information necessary in the decoder to identify the correct entropy decoder and the gain by using more entropy coders Depending on the bit-rate, the number of entropy coders is typically to In the presented ... density of the input signal In both subband coding and differential coding, the complexity of the systems must approach infinity to reach the coding gain limit To be able to apply bit allocation dynamically...

Ngày tải lên: 17/10/2013, 11:15

... 2)} = E{[2r cos(θ )y( n − 2) − r y( n − 3) + x(n − 1) ]y( n − 2)} = 2r cos(θ)E {y (n − 2)} − r E {y( n − 2 )y( n − 3)} = 2r cos(θ)E {y (n − 2)} − r E {y( n − 1 )y( n − 2)} 2r cos(θ) σ = + r2 y so 2 E{e2 (n)} ... Qr − =− R 8 79 49 = Qr = R − 64 64 y( 0) = Qr y( 2) = Qr y( 3) 1999 by CRC Press LLC Qr R − y( 1) c = = Qr (3.73) y( 4) = Qr R y( 5) = Qr R y( 6) = Qr R y( 7) = Qr R y( 8) = Qr R 77 51 = Qr − =− 64 64 ... conditions (y( −1) = y( −2) = 0), and an input sequence x(n) = δ(n), where δ(n) is the unit impulse or unit sample The following sequence is obtained; y( 0) = y( 1) = Qr y( 2) = Qr Qr y( 3) = Qr y( 4) = Qr y( 5)...

Ngày tải lên: 17/10/2013, 11:15

... Property provides the basis for many signal processing algorithms because many systems can be specified directly by their impulse or frequency response Property is particularly useful in analyzing ... particularly useful c 1999 by CRC Press LLC as a basis for digital signal processing (DSP) because it extends the theory of classical Fourier analysis to DT signals and leads to many effective ... Dorward, and Schuyler R Quackenbush Sony Systems Kenzo Akagiri, M.Katakura, H Yamauchi, E Saito, M Kohut, Masayuki Nishiguchi, and K Tsutsui PART X 44 Time Frequency and Multirate Signal Processing...

Ngày tải lên: 17/10/2013, 12:15

... DIGITAL SIGNAL PROCESSING Reproducibility The performance of a DSP system can be repeated precisely from one unit to another This is because the signal processing of DSP systems work directly ... computer memory for later use, or it may be displayed graphically In other applications, the DSP system may be required to generate signals digitally, such as speech synthesis used for cellular phones ... convert the digital signal y n† back to the analog signal y t† before it is passed to an appropriate device This process is called the digital- to-analog (D/A) conversion, typically performed by a D/A...

Ngày tải lên: 17/10/2013, 14:15

... display only if the eye is stationary with respect to this display Particularly with the eye tracking objects moving on the screen, this assumption is no longer valid For a tracking observer very ... Actually the picture update frequency may be even as low as 16 Hz, to guarantee smooth perceived motion (see, e.g., [3]) The higher display rates are merely necessary to prevent the annoying large ... vectors only In the PPC algorithm a two-level hierarchy is proposed In the first hierarchical level, on fairly large blocks (typically 64 by 64), a limited number of candidate vectors, usually less...

Ngày tải lên: 19/10/2013, 18:15

... widespread interest in the signal processing community over the past 20 or 30 years Because image restoration is essentially an ill-posed inverse problem which is also frequently encountered in various ... methods can be found in the book Digital Video Processing by Tekalp [8] This chapter summarizes key results in digital image and video restoration 53.2 Modeling Every image restoration/superresolution ... general vary by spatial coordinates, the discrete sensor PSF is space-varying The support of the space-varying PSF is indicated by the shaded area in Fig 53.1, where the rectangle depicted by solid...

Ngày tải lên: 19/10/2013, 18:15

... analog-to -digital converter (A/D) circuit where the sampled analog signal is converted to a digitally coded signal The digital signal is then applied to c 1999 by CRC Press LLC the digital signal processing ... employ more digital signal processing in the later stages High resolution conversions are achieved by trading off speed and digital signal processing complexity, both of which can be easily realized ... A digital filtering application may produce an analog signal as its output, whereas a speech recognition system may pass the digital output of the DSP system to a computer system for further processing...

Ngày tải lên: 19/10/2013, 18:15

... many (in essence) continuous signals in a digital fashion This means that we not deal with these signals directly, but only with sampled versions of it: we only retain the values of these signals ... at present only be viewed by a minority of people Most people can only view SDTV broadcast As broadcasters like their programs to be viewed by as many customers as possible, they are interested ... Multidimensional Digital Signal Processing Signal Processing Series, Prentice-Hall, Englewood Cliffs, NJ, 1984 [5] Dubois, E., The sampling and reconstruction of time-varying imagery with application...

Ngày tải lên: 19/10/2013, 18:15

... (t) = Q(D )y2 (t) = ······ ··· ······ Q(D)yn (t) = Multiplying these equations by c1 , c2 , , cn , respectively, and adding them together yields Q(D) c1 y1 (t) + c2 y2 (t) + · · · + cn yn (t) ... equations yields Q(D) yc (t) + yp (t) = P (D)f (t) Thus, yc (t) + yp (t) satisfies Eq 2.4a and therefore is the general solution of Eq 2.4a We call yc (t) the complementary solution and yp (t) the ... that only an exponential function eλt has this property So let us assume that yc (t) = ceλt is a solution to Eq 2.5ab Now dyc = cλeλt dt d yc D yc (t) = = cλ2 eλt dt ······ ··· ······ d n yc = cλn...

Ngày tải lên: 19/10/2013, 20:15

... C55x instruction set supports both 50 INTRODUCTION TO TMS320C55X DIGITAL SIGNAL PROCESSOR my_symbol set ; my_symbol = start mov #my_symbol,AR1 ; Load AR1 with label start at column Figure 2.9 mnemonic ... twice the cycle efficiency computing vector products ± the fundamental operation of digital signal processing, and its scaleable instruction length significantly improves the code density In addition, ... data space memory map as MATLAB and C are used in early development stages to verify and analyze the functionality of the algorithms Due to real-time constraints and/or memory limitations, part...

Ngày tải lên: 19/10/2013, 23:15

... f Y † ˆ where my ˆ €N 1 p eÀ y my † =2sy ˆ p e sy 2p sy 2p iˆ1 mi and sy ˆ  5 y À my À sy , …3:3:18† q €N iˆ1 si A graphical representation of the probability density ... power (Taylor) series expansion cos y ˆ À y ‡ y À y ‡ ÁÁÁ, 2! 4! 6! …3:8:1a† 118 DSP FUNDAMENTALS AND IMPLEMENTATION CONSIDERATIONS sin y ˆ y À y ‡ y À y ‡ ÁÁÁ, 3! 5! 7! …3:8:1b† where y is in ... 0:26489 2y3 ‡ 5:0454 1y4 ‡ 1:80029 3y5 , …3:8:2a† sin y ˆ 3:14062 5y ‡ 0:0202636 7y2 À 5:32519 6y3 ‡ 0:544678 8y4 ‡ 1:80029 3y5 , …3:8:2b† where the value y is defined in the first quadrant That is, y

Ngày tải lên: 19/10/2013, 23:15

... efficiency Such systems belong to the category of hybrid analog /digital system A generic system structure for the hybrid analog /digital approach is shown in Fig 56.2 Due to the interlacing processing ... Furthermore, the system complexity of the hybrid approach is likely to be higher than that of the fully digital approach because it requires both analog and digital types of processing 56.4 Error ... Intl HDTV Signal Processing Workshop, Torino, Italy, 1986 [4] Nonomiya, Y et al., HDTV broadcasting and transmission system—MUSE, Proc 2nd Intl HDTV Signal Processing Workshop, Torino, Italy, 1986...

Ngày tải lên: 23/10/2013, 16:15

... backward Half pixel No Yes Yes Yes No Yes Yes Yes Yes Weighted uniform Motion Compensation Scalability 55.4.1 Yes No No No H.261 Recommendation H.261 of the CCITT Study Group XV was adopted in ... Virtually all video compression systems identify and reduce four basic types of video data redundancy: inter-frame (temporal) redundancy, interpixel redundancy, psychovisual redundancy, and coding ... the coding redundancy in the symbols Coding redundancy is eliminated by minimizing the average number of bits per symbol This is achieved by giving fewer bits to more frequent symbols and more bits...

Ngày tải lên: 23/10/2013, 16:15

... Signal Processing, Prentice-Hall, Englewood Cliffs, NJ, 1988 [6] Digital Signal Processing Committee, Ed., Selected Papers in Digital Signal Processing, II, IEEE Press, New York, 1975 [7] Digital Signal ... of the Cooley-Tukey fast Fourier transform (FFT) algorithm in 1965 has opened a new area in digital signal processing by reducing the order of complexity of Reprinted from Signal Processing 19:259-299, ... pre-Cooley-Tukey area, recalling that algorithms can get lost by lack of use, or, more precisely, when they come too early to be of immediate practical use The developments following the Cooley-Tukey...

Ngày tải lên: 23/10/2013, 16:15

... and y = [y1 y2 y3 · · · yp ]T ∈ Rp where the superscript T denotes transposition is symbolically given by d(x, y) Most distortion measures satisfy three properties given by: Positivity: d(x, y) ... equality if and only if x = y Symmetry: d(x, y) = d (y, x) Triangle inequality: d(x, z) ≤ d(x, y) + d (y, z) To qualify as a valid measure for quantizer design, only the property of positivity needs ... given by: d(x, y) = (x − y) T W(x − y) (6.3) where W is the matrix of weights For positivity, W must be positive-definite If W is a constant matrix, the three properties of positivity, symmetry, and...

Ngày tải lên: 23/10/2013, 16:15