LEADER 00867cam2 22002531 450 001 SOBE00038476 005 20131213115445.0 100 $a20131213d1964 |||||ita|0103 ba 101 $aita 102 $aIT 200 1 $a<<3: Il >>Medioevo$fArmando Saitta 210 $a[Firenze]$cSansoni$d1964 215 $a274 p.$d22 cm 461 1$1001SOBE00038470$12001 $aStoria e tradizione : panorama critico di testimonianze / Armando Saitta$v3 700 1$aSaitta$b, Armando$3AF00008133$4070$050346 801 0$aIT$bUNISOB$c20131213$gRICA 850 $aUNISOB 852 $aUNISOB$jFondo|Cosenza$m161664 912 $aSOBE00038476 940 $aM 102 Monografia moderna SBN 941 $aM 957 $aFondo|Cosenza$b000843$i-3$gSI$d161664$hCosenza$rdono$tN$1menle$2UNISOB$3UNISOB$420131213115034.0$520131213115101.0$6menle 996 $aMedioevo$91712883 997 $aUNISOB LEADER 05541nam 2200709Ia 450 001 9911020256503321 005 20200520144314.0 010 $a9786610838752 010 $a9781280838750 010 $a1280838752 010 $a9780470060490 010 $a0470060492 010 $a9780470060506 010 $a0470060506 035 $a(CKB)1000000000357114 035 $a(EBL)291033 035 $a(OCoLC)319546537 035 $a(SSID)ssj0000263623 035 $a(PQKBManifestationID)11207837 035 $a(PQKBTitleCode)TC0000263623 035 $a(PQKBWorkID)10274556 035 $a(PQKB)10295145 035 $a(MiAaPQ)EBC291033 035 $a(Perlego)2787902 035 $a(EXLCZ)991000000000357114 100 $a20060526d2007 uy 0 101 0 $aeng 135 $aur|n|---||||| 181 $ctxt 182 $cc 183 $acr 200 10$aUltra wideband signals and systems in communication engineering /$fM. Ghavami, L. B. Michael, R. Kohno 205 $a2nd ed. 210 $aChichester, England ;$aHoboken, NJ $cJohn Wiley$dc2007 215 $a1 online resource (336 p.) 300 $aPrevious ed.: 2004. 311 08$a9780470027639 311 08$a0470027630 320 $aIncludes bibliographical references (p. [287]-296) and index. 327 $aUltra Wideband Signals and Systems in Communication Engineering; Contents; Preface; Acknowledgments; List of Figures; List of Tables; Introduction; I.1 Ultra wideband overview; I.2 A note on terminology; I.3 Historical development of UWB; I.4 UWB regulation overview; I.4.1 Basic definitions and rules; I.5 Key benefits of UWB; I.6 UWB and Shannon's theory; I.7 Challenges for UWB; I.8 Summary; 1 Basic properties of UWB signals and systems; 1.1 Introduction; 1.2 Power spectral density; 1.3 Pulse shape; 1.4 Pulse trains; 1.5 Spectral masks; 1.6 Multipath; 1.7 Penetration characteristics 327 $a1.8 Spatial and spectral capacities1.9 Speed of data transmission; 1.10 Cost; 1.11 Size; 1.12 Power consumption; 1.13 Summary; 2 Generation of UWB waveforms; 2.1 Introduction; 2.1.1 Damped sine waves; 2.2 Gaussian waveforms; 2.3 Designing waveforms for specific spectral masks; 2.3.1 Introduction; 2.3.2 Multiband modulation; 2.4 Practical constraints and effects of imperfections; 2.5 Summary; 3 Signal-processing techniques for UWB systems; 3.1 The effects of a lossy medium on a UWB transmitted signal; 3.2 Time domain analysis; 3.2.1 Classification of signals; 3.2.2 Some useful functions 327 $a3.2.3 Some useful operations3.2.4 Classification of systems; 3.2.5 Impulse response; 3.2.6 Distortionless transmission; 3.3 Frequency domain techniques; 3.3.1 Fourier transforms; 3.3.2 Frequency response approaches; 3.3.3 Transfer function; 3.3.4 Laplace transform; 3.3.5 z-transform; 3.3.6 The relationship between the Laplace transform, the Fourier transform, and the z-transform; 3.4 UWB signal-processing issues and algorithms; 3.5 Detection and amplification; 3.6 Summary; 4 UWB channel modeling; 4.1 A simplified UWB multipath channel model; 4.1.1 Number of resolvable multipath components 327 $a4.1.2 Multipath delay spread4.1.3 Multipath intensity profile; 4.1.4 Multipath amplitude-fading distribution; 4.1.5 Multipath arrival times; 4.2 Path loss model; 4.2.1 Free space loss; 4.2.2 Refraction; 4.2.3 Reflection; 4.2.4 Diffraction; 4.2.5 Wave clutter; 4.2.6 Aperture-medium coupling loss; 4.2.7 Absorption; 4.2.8 Example of free space path loss model; 4.3 Two-ray UWB propagation model; 4.3.1 Two-ray path loss; 4.3.2 Two-ray path loss model; 4.3.3 Impact of path loss frequency selectivity on UWB transmission; 4.4 Frequency domain autoregressive model; 4.4.1 Poles of the AR model 327 $a4.5 IEEE proposals for UWB channel models4.5.1 An analytical description of the IEEE UWB indoor channel model; 4.6 Summary; 5 UWB communications; 5.1 Introduction; 5.2 UWB modulation methods; 5.2.1 PPM; 5.2.2 BPM; 5.3 Other modulation methods; 5.3.1 OPM; 5.3.2 PAM; 5.3.3 OOK; 5.3.4 Summary of UWB modulation methods; 5.4 Pulse trains; 5.4.1 Gaussian pulse train; 5.4.2 PN channel coding; 5.4.3 Time-hopping PPM UWB system; 5.5 UWB transmitter; 5.6 UWB receiver; 5.6.1 Detection; 5.6.2 Pulse integration; 5.6.3 Tracking; 5.6.4 Rake receivers; 5.7 Multiple access techniques in UWB 327 $a5.7.1 Frequency division multiple access UWB 330 $aThe thoroughly revised and updated second edition of Ultra Wideband Signals and Systems in Communication Engineering features new standards, developments and applications. It addresses not only recent developments in UWB communication systems, but also related IEEE standards such as IEEE 802.15 wireless personal area network (WPAN). Examples and problems are included in each chapter to aid understanding. Enhanced with new chapters and several sections including Standardization, advanced topics in UWB Communications and more applications, this book is essential reading for senior unde 606 $aBroadband communication systems 606 $aUltra-wideband devices 615 0$aBroadband communication systems. 615 0$aUltra-wideband devices. 676 $a621.382 676 $a621.3821 700 $aGhavami$b M$0892233 701 $aMichael$b L. B$01841885 701 $aKohno$b R$0892235 801 0$bMiAaPQ 801 1$bMiAaPQ 801 2$bMiAaPQ 906 $aBOOK 912 $a9911020256503321 996 $aUltra wideband signals and systems in communication engineering$94421775 997 $aUNINA