The Art of Error Correcting Coding phần 8 pptx

The book of qt 4 the art of building qt applications - phần 3 pptx

The book of qt 4 the art of building qt applications - phần 3 pptx

... usingthe Designer,which allowsthe basicgraphical frameworkofmostapplications to be puttogether “bymouseclick” in Qt versions 4. 1and later .The basisofthisisthe QMainWindowQt class. 4. 1The Anatomy of ... key. Alternatively,while in thenormaldesignmode,you can setthe name of thede- siredBuddywidgetinthe PropertyEditor, usingthe Buddyproperty. 3 Using this ap- proach,wewould setthe...

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The book of qt 4 the art of building qt applications - phần 5 pptx

The book of qt 4 the art of building qt applications - phần 5 pptx

... query.Thisisfollowed bythelistofstrings to be displayed.Then comesthe indexof thelistele ment that thedrop-downwidgetdisplaysatthe be- ginning .The next-to-lastparameter specifies whether theusercan add ... Extensions andisdescribedinRFCs2 0 45 , 2 046 , and2 047 . 1 94 6 .5 Ready-made DialogsinQt 6 .5. 4Input Dialogs Forsimplequeries,Qtprovides various template inputdialogs,consistingofasu...

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The book of qt 4 the art of building qt applications - phần 8 doc

The book of qt 4 the art of building qt applications - phần 8 doc

... QStringobjects, making useofthe toLocal8Bit()method internally. 11.4Startingand ControllingProcesses Nowandagainyou maywanttomake useofthe services of command-linebased programs, particularlyon Unix-based operating ... LOGGERTHREAD_H In theconstructor wespecifythefilename for the le butdonot openit. In run() weonlystartthe eventloop of thethreadvia exec(). append()opens the le for each i...

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The book of qt 4 the art of building qt applications - phần 10 pptx

The book of qt 4 the art of building qt applications - phần 10 pptx

... format 1 14 undo se e QTextDocument QtGlobal 386 QtGui 42 , 44 45 QThread see threads QThreadStorage 345 – 347 QTime 188 QTimer3 34, 350 singleshot timer3 04 QTimerEvent 188, 189 QtNetwork 42 , 45 , 332 QtOpenGL42, ... 381 QTableView 211 QTableWidget251, 253 QtCore42, 44 , 332 debugvariations28 QTcpServer 333, 338 QTcpSocket40, 318, 333, 3 34, 340 QtDBus43, 47 QtDebug 387 QTempora...

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The Art of Error Correcting Coding phần 1 ppsx

The Art of Error Correcting Coding phần 1 ppsx

... standard array of the binary linear (4, 2, 2) code is the following: ¯s 00 01 10 11 00 0000 011 0 10 11 110 1 11 10 00 11 10 0 011 010 1 10 010 0 0 010 11 11 10 01 01 00 01 011 1 10 10 11 00 Decoding with the standard ... =  11 1  and parity-check matrix H =  11 0 10 1  . Accordingly, its standard array is the following: ¯s 01 00 000 11 1 11 10 0 011 10 0...

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The Art of Error Correcting Coding phần 2 pps

The Art of Error Correcting Coding phần 2 pps

... the binary representation of integers, then the value of the syndrome directly gives the position of the error. This is the idea in the algorithms for encoding and decoding presented below. The ... EG(m, 2) . The columns of the matrix ( ¯x  1 ¯x  2 ¯x  m )  are taken as the coordinates of points of the geometry EG(m ,2) . Then, there is a one-to-one...

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The Art of Error Correcting Coding phần 3 doc

The Art of Error Correcting Coding phần 3 doc

... 1. (3. 17) ã Find the coefcients of the error- locator polynomial (x). ã Find the inverses of the roots of σ(x), that is, the locations of the errors, j 1 , , j . ã Find the values of the errors ... knowledge of the WDS of a code C, the error performance can be estimated, as discussed in Chapter 1. The WDS and the union bound (1 .36 ) give good estim...

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The Art of Error Correcting Coding phần 4 docx

The Art of Error Correcting Coding phần 4 docx

... (4. 23) where P s denotes the probability of a symbol error at the input of the RS decoder, P S = 1 − (1 − p) m , and p denotes the probability of a bit error at the input of the RS decoder. The ... vectors of length 3, code C becomes a binary (21, 9, 5) code that is capable of correcting up to 2 random errors, as well as any single burst of up to 4 bits....

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The Art of Error Correcting Coding phần 5 docx

The Art of Error Correcting Coding phần 5 docx

... received (one error in the second position). The operation of the VD is illustrated in Figures 5. 12 to 5. 17. The evolution of the metric values with respect to the decoding stages is shown in the following ... with Example 5. 5.1, using the traceback technique, at the end of the i = 6 received pair of bits from the channel, the traceback memory would hav...

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The Art of Error Correcting Coding phần 6 pot

The Art of Error Correcting Coding phần 6 pot

... that the syndrome of a binary SPC (n, n − 1, 2) code is simply the sum of the n bits. The second row and the first column will have nonzero syndromes, indicating the presence of an odd number of errors. ... Dd) code. The purpose of the interleaver between the outer and the inner code is twofold. First, it serves to convert the bytes of size k into vectors of...

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The Art of Error Correcting Coding phần 7 ppt

The Art of Error Correcting Coding phần 7 ppt

... e −|δ 1 −δ 2 |  , (7. 30) SOFT-DECISION DECODING 165 where ¯e(j) is the set of all length-K vectors of Hamming weight one. The vector ¯e(j) is the coset representative of the partition of code C 1 (equivalent ... =+0.2 − 1. 57 =−1. 37   (u 4 ) =  c 4 +  e 1 (u 4 ) =+0.3 + 0. 87 =+1. 17 SOFT-DECISION DECODING 159 The operation of a SOVA decoder can be divided into...

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The Art of Error Correcting Coding phần 8 pptx

The Art of Error Correcting Coding phần 8 pptx

... has the advantage that the number of bits per symbol is increased by a factor of ν, thus increasing the spectral efficiency of the system. On the other hand, the required average energy of the ... iterative BF decoding on the basis of the extended matrix H ext . Analyze the performance on the basis of the structure of the Tanner graph, by considering sin...

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The Art of Error Correcting Coding phần 9 potx

The Art of Error Correcting Coding phần 9 potx

... 2000) P (NS) b1 ≤ n  w=d 1 w n A (1) w 2 −w w  i=0  w i  Q   2RE b N 0 d 2 P (i)  , (9. 9) where d 2 P (i) = 1 w [ i 1 + (w − i) 2 ] 2 . The probability of a bit error in the second decoding stage upper is also bound by (9. 9) using the same arguments above. The bound (9. 9) ... (correlations) from the subsets selected at the second partitioning stage – given the de...

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The Art of Error Correcting Coding phần 10 potx

The Art of Error Correcting Coding phần 10 potx

... 1990. E. L. Blokh and V. V. Zyablov, Coding of Generalized Concatenated Codes,” Probl. Pered. Inform., vol. 10, no. 1, pp. 45–50, 1974. The Art of Error Correcting Coding, Second Edition Robert H. ... ed., Key Papers in the Development of Coding Theory, pp. 109 –120, IEEE Press, 1974. W. W. Peterson and E. J. Weldon, Jr., Error Correcting Codes, 2nd ed., MIT Press, 1...

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