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1. |
Record Nr. |
UNINA9910455603603321 |
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Autore |
Viterbi Andrew J |
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Titolo |
The foundations of the digital wireless world [[electronic resource] ] : selected works of A.J. Viterbi / / Andrew J. Viterbi |
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Pubbl/distr/stampa |
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Hackensack, N.J., : World Scientific, c2010 |
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ISBN |
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1-282-76153-6 |
9786612761539 |
981-4287-51-2 |
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Descrizione fisica |
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1 online resource (189 p.) |
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Collana |
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IISc centenary lecture series ; ; v. 2 |
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Disciplina |
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Soggetti |
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Wireless communication systems |
Digital communications |
Electronics |
Wireless metropolitan area networks |
Electronic books. |
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Lingua di pubblicazione |
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Formato |
Materiale a stampa |
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Livello bibliografico |
Monografia |
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Note generali |
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Description based upon print version of record. |
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Nota di bibliografia |
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Includes bibliographical references. |
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Nota di contenuto |
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CONTENTS; Preface; Brief Biography of Professor Andrew J. Viterbi ; The Foundations of the Digital Wireless World (A Centenary Lecture by Professor Andrew J. Viterbi); Information Theory, Satellite Communication and Moore's Law; The Two Limits of Shannon; Convolutional Codes, Viterbi Decoding and Digital Satellite Television; The New Wireless Frontier: Personal Communication; Spread Spectrum Technology; Societal Benefits; 1. Phase-Locked Loop Dynamics in the Presence of Noise by Fokker-Planck Techniques Proc. IEEE. 1737 (1963).; PHASE-LOCKED LOOP DYNAMICS |
THE STEADY-STATE PHASE-ERROR PROBABILITY DENSITY FOR THE FIRST-ORDER LOOPMEAN TIME TO LOSS OF LOCK AND FREQUENCY OF SKIPPING CYCLES; STEADY-STATE PROBABILITY DISTRIBUTION FOR THE SECOND-ORDER LOOP; RANDOM MODULATION; OTHER ERROR FUNCTIONS; CONCLUSIONS AND COMPARISONS; ACKNOWLEDGMENT; REFEREICES; 2. Nonlinear Estimation of PSK-Modulated Carrier Phase with Application to Burst Digital Transmission IEEE Trans. Info. Theor. |
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IT-29, 543 (1983).; 1. INTRODUCTION; II. PROBLEM FRAMEWORK AND COMPARISON STANDARD; III. MAJOR RESULTS; IV. INTERPRETATION OF RESULTS AND SOME LIMITING CASES |
V. SIMULATIONS AND PRACTICAL DIGITAL IMPLEMENTATIONSVI. CONCLUSION; APPENDIX A; APPENDIXB; ACKNOWLEDGMENT; REFERENCES; 3. Error Bounds for Convolutional Codes and an Asymptotically Optimum Decoding Algorithm IEEE Trans. Info. Theor. IT-13, 260 (1967).; I. SUMMARY OF RESULTS; II. DESCRIPTION AND PROPERTIES OF THE ENCODER; III. THE LOWER BOUND; IV. A PROBABILISTIC NONSEQUENTIAL DECODING ALGORITHM; V. RANDOM CODING UPPER BOUND; VII. A SEMI-SEQUENTIAL MODIFICATION OF THE DECODING ALGORITHM; ACKNOWLEDGMENT; REFERENCES |
4. Orthogonal Tree Codes for Communication in the Presence of White Gaussian Noise IEEE Trans. Commun. Technol. COM-15, 238 (1967).INTRODUCTION; THE ENCODNR; REFERENCES; 5. Convolutional Codes and Their Performance in Communication Systems IEEE Trans. Commun. Technol. COM-19, 751 (1971).; I. INTRODUCTION; II. CODE REPRESENTATION; Ill. MINIMUM DISTANCE DECODER FOR BINARY SYMMETRIC CHANNEL; IV. DISTANCE PROPERTIES OF CONVOLUTIONAL CODES; V. GENERALIZATION TO ARBITRARY CONVOLUTIONAL CODES; VI. GENERALIZATION OF OPTIMAL DECODER TO ARBITRARY MEMORYLESS CHANNELS |
VII. PERFORMANCE OF CONVOLUTIONAL CODES ON MEMORYLESS CHANNELSVIII. SYSTEMATIC AND NON SYSTEMATIC CONVOLUTIONAL CODES; IX. CATASTROPHIC ERROR PROPAGATION IN CONVOLUTIONAL CODES; X. PERFORMANCE BOUNDS FOR BEST CONVOLUTIONAL CODES FOR GENERAL MEMORYLESS CHANNELS AND COMPARISON WITH BLOCK CODES; XI. PATH MEMORY TRUNCATION METRIC QUANTIZATION AND SYNCHRONIZATION; XII. OTHER DECODING ALGORITHMS FOR CoNVOLUTION AL CODES; APPENDIX I; ACKNOWLEDGMENT; REFERENCES; 6. Trellis Encoding of Memory less Discrete-Time Sources with a Fidelity Criterion IEEE Trans. Info. Theor. IT-20, 325 (1974). |
I. INTRODUCTION |
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Sommario/riassunto |
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Professor Andrew J Viterbi has been extremely influential in the communications field via his invention of the Viterbi Algorithm, and his championing of CDMA technology developed by his company Qualcomm Inc. This book presents a selection of papers personally selected by him to mark his key technical contributions and his thoughts on CDMA technology as it evolved. <i>Sample Chapter(s)</i><br>Chapter 1: The Foundations of the Digital Wireless World (3,852 KB)<br> <br><i>Contents: </i><ul><li>Phase-Locked Loop Dynamics in the Presence of Noise by Fokker-Planck Techniques</li><li>Nonlinear Esti |
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2. |
Record Nr. |
UNINA9910574870203321 |
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Titolo |
Antología del pensamiento Social en Colombia / / edited by Víctor Manuel Moncayo |
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Pubbl/distr/stampa |
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Ciudad de Buenos Aires, Argentina : , : CLACSO, , 2018 |
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Descrizione fisica |
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1 online resource (523 pages) |
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Disciplina |
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Soggetti |
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Anti-globalization movement |
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Lingua di pubblicazione |
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Formato |
Materiale a stampa |
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Livello bibliografico |
Monografia |
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Sommario/riassunto |
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Además de la insoslayable posición personal y de las necesarias consultas con quienes comparto reflexiones y preocupaciones teóricas y políticas, he acudido a múltiples ventanas de aproximación. La primera, casi forzosa, es la consideración del período, sin dejar de lado sus antecedentes que contribuyen a una comprensión coherente e integral, pues la historia es mucho más que la sucesión cronológica. En esta misma dirección de orden temporal, también se ha tenido en cuenta la relativa actualidad del texto seleccionado respecto de las circunstancias del presente que vivimos. Otra dimensión privilegiada tiene que ver con la relación o incidencia de los documentos con las luchas sociales y políticas, así como con los debates y controversias de las ciencias sociales frente a los debates de nuestro tiempo, apreciando el protagonismo y la influencia del respectivo autor. Y, obviamente, se ha tenido la precaución de matizar el conjunto con los aspectos claves de la controversia en nuestra sociedad, empezando por la realidad del conflicto social y armado que por decenios ha caracterizado el acontecer nacional, y los problemas económicosociales que le están asociados. Igualmente, han sido estimadas como referencias pertinentes la plurietnicidad, la perspectiva de género y la cuestión ambiental. Como el lector podrá apreciar, esta ha sido la respuesta ciertamente insuficiente, injusta y excluyente, al desafío de construir una antología de quienes como intelectuales han sido actores centrales, durante el período antológico, de las múltiples expresiones de la |
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controversia y confrontación del orden social vigente. |
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