theory and applications of colloidal processing

Multi-Carrier Digital Communications - Theory and Applications of OFDM

... Multi-Carrier Digital Communications Theory and Applications of OFDM Information Technology: Transmission, Processing, and Storage Series Editor: Jack Keil Wolf University of California at San Diego La ... Polytechnic Institute and State University Blacksburg, Virginia Multi-Carrier Digital Communications: Theory and Applications of OFDM Ahmad R S Bahai and Burton R Saltzberg Principles of Digital Transmission: ... concise summary of the present state of the art of the theory and practice of OFDM technology The authors believe that the time is ripe for such a treatment Particularly based on one of the author's...

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THEORY AND APPLICATIONS OF MONTE CARLO SIMULATIONS ppt

Danh mục: Điện - Điện tử

... determination of the measurand These variables are 29 30 Theory and Applications of Monte Carlo Simulations known as the input sources For example, Equation shows a measurand y as a function of four ... x2 and x3 are input quanti‐ ties, u ( x1), u ( x2) and u ( x3) are their respective uncertainties and y and u ( y ) are the measurand and its uncertainty, re‐ spectively; and b) propagation of ... stating an expanded un‐ certainty for this range of mass of 0.1 g, with a coverage factor k = and a level of confidence of 95% The uncertainty of the mass due to the calibration of the balance...

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Multi-Carrier Digital Communications Theory and Applications of OFDM pdf

Danh mục: Điện - Điện tử

... Multi-Carrier Digital Communications Theory and Applications of OFDM Information Technology: Transmission, Processing, and Storage Series Editor: Jack Keil Wolf University of California at San Diego La ... Polytechnic Institute and State University Blacksburg, Virginia Multi-Carrier Digital Communications: Theory and Applications of OFDM Ahmad R S Bahai and Burton R Saltzberg Principles of Digital Transmission: ... concise summary of the present state of the art of the theory and practice of OFDM technology The authors believe that the time is ripe for such a treatment Particularly based on one of the author's...

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THEORY AND APPLICATIONS OF CT IMAGING AND ANALYSIS pdf

Danh mục: Sức khỏe giới tính

... size of the circles by ﬁnding the central point, mass center, of each nodule and then, calculated the distance of this central point to the most distant point of each 28 Theory and Applications of ... areas 12 Theory and Applications of CT Imaging and Analysis of the series, and so on The masking problem with the initial slice including non-isolated nodules connected to the walls of the chest ... screening of lung cancer, the measurement of texture and density of the nodule, the dynamical evaluation by the volumetry and contrast impregnation and the fusion of the images obtained by CT and positron...

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Theory and applications of ofdm and cdma wideband wireless communications phần 1 ppsx

Danh mục: Hóa học - Dầu khí

... Theory and Applications of OFDM and CDMA Theory and Applications of OFDM and CDMA Wideband Wireless Communications Henrik Schulze and Christian Luders ¨ Both of Fachhochschule ... bandwidth of the two components (real and imaginary part) of the baseband signal, 20 BASICS OF DIGITAL COMMUNICATIONS resulting in one signal of bandwidth B instead of two (real) signals of bandwidth ... by ak = Theory and Applications of OFDM and CDMA  2005 John Wiley & Sons, Ltd T T cos 2π k t x(t) dt T Henrik Schulze and Christian L¨ ders u (1.2) BASICS OF DIGITAL COMMUNICATIONS and T k (1.3)...

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Theory and applications of ofdm and cdma wideband wireless communications phần 2 ppt

Danh mục: Hóa học - Dầu khí

... amplitude fluctuations of the received time signal for νmax = 50 Hz, corresponding for example, to a transmit signal at 900 MHz for a vehicle Theory and Applications of OFDM and CDMA  2005 John ... are random variables that are statistically independent and identically distributed for different values of k To be more specific, the random phase θk is assumed to be independent of νk and τk and ... digitally modulated symbol The amplitude and the phase fluctuate randomly The typical frequency of the variation is of the order of νmax corresponding to a timescale of the variations given by −1 tcorr...

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Theory and applications of ofdm and cdma wideband wireless communications phần 3 ppt

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... convolutional codes, it is often convenient to work with code words of ﬁnite length, but it is not necessary, and the length is not determined by the code Theory and Applications of OFDM and CDMA  2005 ... L-value of the random bit S We note that L(S = s) = sL (3.10) The L-value of a random bit S (written as a sign) has a very natural interpretation as a soft bit The sign of L says which of the ... Deep space communication was one of the ﬁrst applications of such a scheme with a convolutional code and an RS code (see (McEliece and Swanson 2001)) Because of the power limitation, the physical...

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Theory and applications of ofdm and cdma wideband wireless communications phần 4 ppt

Danh mục: Hóa học - Dầu khí

... channel and parallelize the given data stream in an appropriate way Theory and Applications of OFDM and CDMA  2005 John Wiley & Sons, Ltd Henrik Schulze and Christian L¨ ders u 146 OFDM Frequency ... baseband and to the center frequency fc in the passband, with negative k for the lower sideband and positive k for the upper sideband For reasons of symmetry, we may then choose the number of carriers ... mathematical concept of a ﬁeld stands for a system of numbers, where addition and multiplication and the corresponding inverses are deﬁned and which is commutative The existence of an (multiplicative)...

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Theory and applications of ofdm and cdma wideband wireless communications phần 5 ppsx

Danh mục: Hóa học - Dầu khí

... I (t) of an OFDM signal 168 OFDM Number of samples 15,000 10,000 5000 0 0.5 1.5 Amplitude 2.5 3.5 Figure 4.22 Histogram for the amplitude of an OFDM signal a Gaussian random variable and the ... intuitively clear and it can easily be visualized by ∗ means of the vector space structure of random variables Then E el xm is the scalar product of the random variables (vectors) el and xm , and E{|el ... those OFDM systems • Preferably one should separate the problem of nonlinearities and the OFDM signal processing This can be done by a predistortion of the signal before ampliﬁcation OFDM 175...

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Theory and applications of ofdm and cdma wideband wireless communications phần 6 pot

Danh mục: Hóa học - Dầu khí

... function of Eb /N0 for such a channel and 16-QAM transmission with code rate Rc = 1/2 and a huge time and frequency interleaving over the bandwidth of K = 768 carriers and the time of I /K = 360 OFDM ... in frequency and time direction that permutes pseudorandomly the QAM symbols of K carriers and L OFDM symbols Thus, the interleaving is over a bandwidth B = K/T and a time frame of length TF ... SNR [dB] 15 20 Figure 4.72 Simulation of a wideband OFDM system with 64-QAM for a very fast and frequency-selective channel 234 OFDM OFDM with 16- QAM and Rc = 0.5 10 n T = 0.01 t /∆ = 0.0417...

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Theory and applications of ofdm and cdma wideband wireless communications phần 7 ppsx

Danh mục: Hóa học - Dầu khí

... very serious candidate and, at the end of the project, an OFDM system was standardized in 1993 (see (EN300401 2001a) for a recent update of the standard) An exhaustive treatment of the DAB system ... of pseudorandom signs These sequences are called pseudonoise (PN) sequences or code signals We Theory and Applications of OFDM and CDMA  2005 John Wiley & Sons, Ltd Henrik Schulze and Christian ... m, run of zeros of length m − 1, and 2m−r−2 runs of zeros and 2m−r−2 , r = 1, 2, , m − runs of ones, each of length r + a5 = X5 + a4 (0) X4 + a3 (1) X3 + a2 (0) X2 a1 (0) a0 = X1 Run of length:...

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Theory and applications of ofdm and cdma wideband wireless communications phần 8 pot

Danh mục: Hóa học - Dầu khí

... in a soft handover should be kept small To illustrate this soft handover effort, Figure 5.23 shows the fraction of connections involved in a soft (or softer) handover and the mean number of active ... signals has been set to 0, and dB In Figure 5.22, the corresponding probability functions of the signal levels with and without soft handover are compared; the case of no soft handover is represented ... the multipath proﬁle and the difference of the local mean values of the signal levels, whether a multipath or a soft handover combining is preferable Since the gain of soft handover depends on...

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Theory and applications of ofdm and cdma wideband wireless communications phần 9 pot

Danh mục: Hóa học - Dầu khí

... phase (random access) and the transmission of short packets, an openloop PC has been deﬁned Furthermore, special rules are speciﬁed for the slotted mode and the soft handover For a soft handover, ... Correspondingly, GPS offers two kinds of services: a precise positioning service (PPS) – primarily for military and other authorized applications – and a less precise standard positioning service ... of the signals of at least four satellites Satellite signals are transmitted on two frequency bands, namely, on the so-called L1 band with a carrier frequency of f1 = 154 · f0 = 1575.42 MHz and...

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Theory and applications of ofdm and cdma wideband wireless communications phần 10 docx

Danh mục: Hóa học - Dầu khí

... Publishers, New York Theory and Applications of OFDM and CDMA  2005 John Wiley & Sons, Ltd Henrik Schulze and Christian L¨ ders u 398 BIBLIOGRAPHY Berrou C, Glavieux A and Thitimajshima P 1993 ... Acoustics, Speech, and Signal Processing ICASSP-97, Munich (Germany) 3, pp 1845–1848 Hofmann-Wellenhof B, Lichtenegger H and Collins J 2001 GPS: Theory and Practice, Springer Holma H and Toskala A ... distinguish cells by a PN sequence offset and to accomplish an easy cell search and soft handover mechanism Data transmission, channel coding and multiplexing All of the channels deﬁned for cdmaOne...

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Advances in Theory and Applications of Stereo Vision Part 1 docx

Danh mục: Kĩ thuật Viễn thông

... feature detection and/ or in matching Finally the evolution of the 2 Stereo Vision Advances in Theory and Applications of Stereo Vision solution is granted through a reproduction and mutation scheme ... in Theory and Applications of Stereo Vision see Figure The sixth chromosome is then itself updated through a similar mutation with a random extraction of normal distribution with zero mean and ... diverse range of current research ideas and applications, providing an insight into the current research trends and advances in the ﬁeld of stereo vision The book presents wide range of innovative...

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Advances in Theory and Applications of Stereo Vision Part 2 pdf

Danh mục: Kĩ thuật Viễn thông

... forward in the context of stereo vision and applications of wavelet More to the wavelet theory, multi-wavelet theory evolved Shi et al (2001) in early 1990s from wavelet theory and enhanced for more ... desired outcome Let Ξnr and Ξnr be ´ the reference corresponding coefﬁcients and Ξnc and Ξnc be the corresponding candidate 12 28 Stereo Vision Advances in Theory and Applications of Stereo Vision coefﬁcients ... Advances in Theory and Applications of Stereo Vision Left image Right image Cyclopean image Bl Bc Br y S Al Ac x Ar x’ Fig Projections of the points A and B on the left and right image planes of a stereo...

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Advances in Theory and Applications of Stereo Vision Part 3 ppt

Danh mục: Kĩ thuật Viễn thông

... center of coordinates of the real world at the optical center and the following axes: Z orthogonal to the image plane and the axes X and Y orthogonal and, also orthogonal to Z The origin of coordinates ... Epipolar lines and planes 9 43 Markov Random Fields inin the Context of Stereo Vision Markov Random Fields the Context of Stereo Vision (a) (b) Fig Left a) and right b) images of a stereo pair ... the set of possible labels, and Δp = {δi , δj , }, the set of possible labels for node λp The matching of a node to a label will be λi = δj , and the probability of the assignation of a label...

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Advances in Theory and Applications of Stereo Vision Part 4 ppt

Danh mục: Kĩ thuật Viễn thông

... of fuzziness instead of ultrafuzziness and without initialization of α Fig.4 shows an example of the main segmentation process using type-2 fuzzy sets and fuzzy information theory The begin and ... filters and down-samplers with separable two dimensional scaling and wavelet functions, which are one dimensional DWT of the rows and columns 78 Advances in Theory and Applications of Stereo ... e prediction and veriﬁcation of hypotheses, Proc ISSPA 92, Signal Processing and Its Applications, pp 167 – 170 Besag, J (1974) Spatial interaction and the statistical analysis of lattice systems,...

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Advances in Theory and Applications of Stereo Vision Part 5 docx

Danh mục: Kĩ thuật Viễn thông

... Y1, Z1) and (X2, Y2, Z2) is imaged as (xi1, yi1) and (xi2, yi2) in image-1 (left) and image-2 (right) respectively in coordinates of the image system; a1 and a2 are the angles of incidence of the ... relative average position of edge segments “i” and “h” in the left image with respect to “j” and “k” in the right image, it ranges from to 106 Advances in Theory and Applications of Stereo Vision O(ij)(hk) ... class of true matches, w1, and the class of false matches, w2 Given a set of samples from both classes, we compute the similarities of the matches belonging to each class according to (8) and build...

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Advances in Theory and Applications of Stereo Vision Part 6 ppsx

Danh mục: Kĩ thuật Viễn thông

... calibration images of left camera Fig Chessboard and cameras configration 122 Advances in Theory and Applications of Stereo Vision M(Y), M(Z), and variance σ x ,σ y ,σ z From these figures and table, ... Advances in Theory and Applications of Stereo Vision (a) (d) (b) (e) (c) (f) (g) Fig Shape context computation and matching, (a) and (b) are the sampled edge points of two ”A” shapes (c) Diagram of log-polar ... Advances in Theory and Applications of Stereo Vision The subscript q=1,2 denotes left and right camera respectively If the number of pixels per unit distance in the image coordinates are mx and my...

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