digital filters and signal processing

... Filters and Applications in Biomedical Image Processing 275 Radu Matei and Daniela Matei Preface Digital filters, together with signal processing, are being employed in the new technologies and ... systems, and implemented in different areas and applications Digital filters and signal processing are used with no costs and they can be adapted to different cases with great flexibility and reliability ... fault (red) and pattern condition (blue), (c) ski-slope fault (blue) and pattern condition (red) and (d) rotating looseness (blue); and external noise (red) 15 Digital Filters and Signal Processing...

Ngày tải lên: 15/03/2014, 23:20

... classical signal processing a rich set of tools has evolved for processing signals that are deterministic and predictable such as transient and periodic signals, and for processing signals that are ... detecting and characterizing physical phenomena and in synthesizing new classes of signals for communications, remote sensing, and a variety of other signal processing applications In classical signal ... Chaotic Signals in Communications Chaotic systems provide a rich mechanism for signal design and generation, with potential applications to communications and signal processing Because chaotic signals...

Ngày tải lên: 16/12/2013, 04:15

... Real-time Signal Processing and Control M.O Tokhi, M.A Hossain and M.H Shaheed Multivariable Control Systems P Albertos and A Sala Control Systems with Input and Output Constraints A.H Glattfelder and ... structured and systematic presentation of some of the newer emerging control and signal processing technologies in the textbook series One of our aims for the Advanced Textbooks in Control and Signal Processing ... thorough and comprehensive in its presentation and is an excellent addition to the series of advanced course textbooks in control and signal processing M.J Grimble and M.A Johnson Glasgow, Scotland,...

Ngày tải lên: 05/03/2014, 15:20

... examples After that, we look into the digital signal processing basics including the sampling technique and the digital filters which are the ultimate (signal) processing tools Similar to the intelligent ... students, researchers and engineers, trying to solve power engineering problems using intelligent systems and signal processing, or seeking applications of intelligent systems and signal processing in ... Intelligent Systems and Signal Processing in Power Engineering With 239 Figures and 36 Tables Author Dr Abhisek Ukil ABB Corporate Research Segelhofstrasse 1K CH-5405 Baden-Daetwill Switzerland abhisek.ukil@ch.abb.com...

Ngày tải lên: 17/03/2014, 18:21

... Decompositions and Transformations as Peaks and Wells 31 Fig Columns and : Binary sets Z and Y and their decomposition Column : Z Y and its decomposition Column : Z Y and its decomposition 4.1 “Supremum” and ... right if and only if ε and δ defined by Equations 12 and 13 are algebraic erosion and dilation, respectively Proposition 11 Let δ and ε be a dilation and an erosion defined by Equations 13 and 12 ... Mathematical Morphology and General Form of Fuzzy Erosions and Dilations Fuzzy Sets and Systems 160, 1858–1867 (2009) Image Decompositions and Transformations as Peaks and Wells Fernand Meyer Mines ParisTech,...

Ngày tải lên: 05/06/2014, 11:54

... 2008), ridgelets (Candes and ` ` Donoho 1999), curvelets (Candes and Donoho 2002; Candes et al 2006a; Starck et al 2002), bandlets (Le Pennec and Mallat 2005), and contourlets (Do and Vetterli 2005), ... Professor of Signal and Image Processing at ENSI He has held visiting appointments at Queensland University of Technology, Stanford University, Caltech, and EPFL SPARSE IMAGE AND SIGNAL PROCESSING ... incredibly wide, including imaging and signal processing in biology, medicine, and the life sciences generally; astronomy, physics, and the natural sciences; seismology and land use studies, as indicative...

Ngày tải lên: 05/06/2014, 11:54

... of 2D digital filters 2D digital filters find applications in versatile areas such as digital processing of aerial and satellite photographs, enhancement of X-rays, computer tomography, digital ... than the FIR filters However, the 2D FIR filters are widely used in the field of digital signal processing and are often preferred to the 2D IIR filters [9] The problem of designing a digital filter ... Comparisons between FGA-designed filter and standard method designed filters are implemented Testing of filters is done using different noisy artificial ECG signals and selected images We used Hermite...

Ngày tải lên: 05/06/2014, 12:06

... Discrete-Time Random Process Signal Modeling Wiener Filters Spectrum Estimation Adaptive Filters Applications in Communications and Signal Processing Textbook: M H Hayes, Statistical Digital Signal Processing ... with MATLAB To learn the techniques of applied probability and statistical signal processing and apply to communication and signal processing Credits: Grading: hw (20%); lab (20%); midterm (20%); ... Signal Processing and Modeling, John Wiley, 1996 ¨  John A Gubner, Probability and Random Processes for Electrical and Computer Engineering, Cambridge Uni Press, 2006 ¨  Peter Vary, Digital Speech...

Ngày tải lên: 10/06/2014, 09:29

... magnitudes A and A , the level would be A A T , and for pulses centered at t and t , the convolved response would be centered at t + t 20 Fourier Transforms in Radar and Signal Processing Figure ... have been adopted more widely to some extent, but rep 11 12 Fourier Transforms in Radar and Signal Processing and comb are less well known We include a short discussion on convolution, as this operation ... T Any Figure 2.4 Step functions: (a) the unit step; (b) a scaled and shifted step 18 Fourier Transforms in Radar and Signal Processing Figure 2.5 The rep operator repetitive waveform can be...

Ngày tải lên: 18/06/2014, 10:05

... in Radar and Signal Processing Figure 3.8 Asymmetric trapezoidal pulse spectra: (a) edges 0.2T and 0.3T ; and (b) edges 0.6T and 0.8T Pulse Spectra 47 the half amplitude pulse width, and, for ... shapes and relative levels of the waveforms and spectra The rise and fall times of the edges are ␶ and the pulse is of width T at the half amplitude points The spectrum (from R7b, P3a, and R5) ... Transforms in Radar and Signal Processing tri (x ) = Ά 1+x for −1 < x ≤ 1−x for ≤ x < otherwise (3.6) and then we have tri (x ) = rect (x ) ⊗ rect (x ) (3.7) tri (x ) ⇔ sinc2 (x ) (3.8) and the transform...

Ngày tải lên: 18/06/2014, 10:05

... in Radar and Signal Processing Figure 3.21 Spectrum of pulse Doppler radar waveform (Figure 3.21 is diagrammatic; the filter bank may be at baseband or a low IF, and may be realized digitally ... wideband (or baseband) sampling theorem and the Hilbert sampling theorem for narrowband (or RF and IF) waveforms are obtained here following the derivations of Woodward [1] Two other narrowband ... (3.20), P2a, R7b, and R6a, ͫ ␦( f ) + 2␲ if ͬ ͭͫ ␦( f ) + 2␲ if ͬ ͮ [exp (−2␲ if T1 ) − exp (−2␲ if T2 )] (3.24) 56 Fourier Transforms in Radar and Signal Processing Using T and ⌬T as given in...

Ngày tải lên: 18/06/2014, 10:05

... (t ), and what is required for digital signal processing is a digital form of the analytic signal a (t ) exp i␾ (t ) This is what is given by Hilbert sampling and quadrature sampling, discussed ... (t )], and hence the complex form u (t ) + iu (t ) = a (t ) exp i [2␲ f t + ␾ (t )] The information in this signal is contained in the amplitude and phase functions a (t ) and ␾ (t ), and what ... f + 80 Fourier Transforms in Radar and Signal Processing W /2 and f l = f − W /2; a central rate (very close to the mean of these two) is r c = 2f /nW With k and ␣ defined by 2f = k + ␣ , these...

Ngày tải lên: 18/06/2014, 10:05

... in Radar and Signal Processing Comparing this with (5.5), we see that the weight values now fall very much faster, and this is illustrated in Figure 5.10 for comparison with Figures 5.4 and 5.8 ... 5.12 Filter weights with oversampling and trapezoidal rounded gate 103 104 Fourier Transforms in Radar and Signal Processing Figure 5.13 Raised cosine rounding and ͭ ͫ g (t ) = qF sinc qFt sinc ( ... in Radar and Signal Processing ∞ p= ͵| ∞ E ( f ) | df = −∞ ͵| X ( f ) | | G ( f ) | df 2 (5.28) −∞ (Here the limits of the second integral could be −F /2 and F /2, as x is taken to be band-limited,...

Ngày tải lên: 18/06/2014, 10:05

... and Signal Processing Figure 6.6 Array response with narrowband weights bandwidth was taken to be 500 MHz, so the frequencies of the responses at ±200 MHz are towards the edges of the band, and ... of the signal, and G, the complex channel response, and then we perform the Fourier transforms defined in (6.6) and (6.7) to give the components of a and B, followed by some simple matrix processing ... for radio and radar waveforms, and this is down-converted to complex baseband (often in more than one mixing process) and, we assume, digitized for processing, including equalization and detection...

Ngày tải lên: 18/06/2014, 10:05

... Transforms in Radar and Signal Processing Figure 6.8 Sum beam frequency response; effect of bandwidth: (a) 10% bandwidth; and (b) 200% bandwidth Equalization 143 equalization, and the dotted response ... fractional signal bandwidth (the ratio of the bandwidth to the center frequency), and bandwidths up to 200% (from zero to twice the carrier frequency) can be handled, though of course wider signal bandwidths ... position, and we have expressed the function S in terms of ␾ , the fractional bandwidth F /f Before putting this expression for S into (6.6) and (6.7), we note that for the band-limited signal...

Ngày tải lên: 18/06/2014, 10:05

... nominally at −55 dB 174 Fourier Transforms in Radar and Signal Processing lobes are seen to be very close to this level—the pattern levels at ±2.5, ±3.5, and ±4.5 are precisely −50 dB by construction, ... beam so that its center is at ␪ and its width is still ␪ , then its edges are at ␪ a = ␪ − ␪ /2 and ␪ b = ␪ + ␪ /2, and the corresponding u values are u a = sin ␪ a and u b = sin ␪ b In this case, ... Transforms in Radar and Signal Processing g (u ) = repU [rect (u − u )/u ] (7.25) This has the (forward) transform (using R6a) a (x ) = (u /U ) comb1/U [sinc (u x ) exp (−2␲ ixu )] (7.26) and we see that...

Ngày tải lên: 18/06/2014, 10:05

... Fourier Transforms in Radar and Signal Processing time processing, and more comprehensive simulations Cost could also be a significant factor, particular for real-time signal processing it may well ... 197 198 Fourier Transforms in Radar and Signal Processing Rules and pairs method (continued) regular linear arrays and, 187 uses, Wiener-Khinchine relation and, 26–27 See also Pairs; Rules Sampling ... array, 182 rect function, 163 193 194 Fourier Transforms in Radar and Signal Processing Autocorrelation functions power spectra and, 111–13 of waveforms, 26, 110 by Wiener-Khinchine theorem, 111...

Ngày tải lên: 18/06/2014, 10:05

... in Radar and Signal Processing Figure 3.8 Asymmetric trapezoidal pulse spectra: (a) edges 0.2T and 0.3T ; and (b) edges 0.6T and 0.8T Pulse Spectra 47 the half amplitude pulse width, and, for ... shapes and relative levels of the waveforms and spectra The rise and fall times of the edges are ␶ and the pulse is of width T at the half amplitude points The spectrum (from R7b, P3a, and R5) ... Transforms in Radar and Signal Processing tri (x ) = Ά 1+x for −1 < x ≤ 1−x for ≤ x < otherwise (3.6) and then we have tri (x ) = rect (x ) ⊗ rect (x ) (3.7) tri (x ) ⇔ sinc2 (x ) (3.8) and the transform...

Ngày tải lên: 18/06/2014, 15:20

... in Radar and Signal Processing Figure 3.21 Spectrum of pulse Doppler radar waveform (Figure 3.21 is diagrammatic; the filter bank may be at baseband or a low IF, and may be realized digitally ... wideband (or baseband) sampling theorem and the Hilbert sampling theorem for narrowband (or RF and IF) waveforms are obtained here following the derivations of Woodward [1] Two other narrowband ... (3.20), P2a, R7b, and R6a, ͫ ␦( f ) + 2␲ if ͬ ͭͫ ␦( f ) + 2␲ if ͬ ͮ [exp (−2␲ if T1 ) − exp (−2␲ if T2 )] (3.24) 56 Fourier Transforms in Radar and Signal Processing Using T and ⌬T as given in...

Ngày tải lên: 18/06/2014, 15:20

... (t ), and what is required for digital signal processing is a digital form of the analytic signal a (t ) exp i␾ (t ) This is what is given by Hilbert sampling and quadrature sampling, discussed ... (t )], and hence the complex form u (t ) + iu (t ) = a (t ) exp i [2␲ f t + ␾ (t )] The information in this signal is contained in the amplitude and phase functions a (t ) and ␾ (t ), and what ... f + 80 Fourier Transforms in Radar and Signal Processing W /2 and f l = f − W /2; a central rate (very close to the mean of these two) is r c = 2f /nW With k and ␣ defined by 2f = k + ␣ , these...

Ngày tải lên: 18/06/2014, 15:20