Wireless data technologies reference handbook phần 6 pot

... Enterprise 450 Solaris 2 .6 Sun Enterprise 450 Solaris 2 .6 Sun Enterprise 450 Solaris 2 .6 Sun Enterprise 450 Solaris 2 .6 Sun Netra t1 Solaris 2 .6 QIP Remote Standby Processor POWER FAULT DATA ALARM Figure ... configurations on Cajun Switches. This 132 WIRELESS DATA NETWORKS 25 23 21 19 17 15 11 9 7 5 3 1 2 468 101214 161 820 22 24 SNR 10−15 dB, datarate > = 5.5 Mb SNR >15...

Ngày tải lên: 09/08/2014, 19:22

... Models 56 3.4.3 Multi-channel Models 58 3.4.4 Specialized Metrics 63 3.5 Metric Evaluation 64 3.5.1 Performance Attributes 64 3.5.2 Metric Comparisons 66 3.5.3 Video Quality Experts Group 66 3.5.4 ... Title. TK 668 0.5.W55 2005 0 06. 6 0 96 dc22 2004 061 588 British Library Cataloguing in Publication Data A catalogue record for this book is available from the British Library ISB...

Ngày tải lên: 09/08/2014, 19:21

... back 2 3 4 5 6 7 8 5 10 15 20 25 30 D/H Visual angle [deg] 2 3 4 5 6 7 8 5 10 15 20 25 30 35 40 D/H Resolution [cpd] HDTV (1080 lines) HDTV (720 lines) PAL (5 76 lines) NTSC (4 86 lines) CIF ... above-mentioned image 62 VIDEO QUALITY Table 3.1 Overview of visual quality metrics Color Trans- Local Reference Appl. (1) Space (2) Lightness (3) form (4) Contrast CSF (5) Masking (6)...

Ngày tải lên: 09/08/2014, 19:21

... 0 1 2 3 4 W-B, LP 5.0 19.2 139.5 478 .6 4 96. 5 W-B, BP 112.8 141.0 179.4 205.7 120.0 R-G, LP 154.2 354.0 404.0 184 .6 27.0 B-Y, LP 125 .6 332.7 381.4 131.5 28 .6 PERCEPTUAL DISTORTION METRIC 97 nonrecursive ... 8-bit Y 0 C 0 B C 0 R as follows (Poynton, 19 96) : R 0 G 0 B 0 2 4 3 5 ¼ 1 219 10 1:371 1 À0:3 36 À0 :69 8 11:732 0 2 4 3 5 Á Y 0 C 0 B C 0 R 2 4 3 5 À 16 128 128 2 4 3 5 0 @...

Ngày tải lên: 09/08/2014, 19:21

... System BInformation units 7 6 5 3 2 Header 2 Header 3 Header 4 Data Data Data Data Network 1 4 7 6 5 3 2 1 4 • • • Figure 8.2 Headers and data can be encapsulated during information exchange size ... 3 header and data. At the data link layer, however, all the information passed down by the network layer (the Layer 3 header and the data) is treated as data. This means that the...

Ngày tải lên: 09/08/2014, 19:22

... global drive to realizing Wireless Data Technologies. Vern A. Dubendorf  2003 John Wiley & Sons, Ltd ISBN: 0-470-84949-5 188 WIRELESS INFORMATION SECURITY (W-INFOSEC) the potential of the information ... on the market. 11 .6 Wireless Transport Layer Security (WTLS) 11 .6. 1 WTLS A huge growth of the wireless mobile services poses demand for the end-to-end secure connections....

Ngày tải lên: 09/08/2014, 19:22

... 188, 190, 192, 194, 1 96, 198, 200, 202, 204 Wired Equivalent Privacy, see WEP Wireless Application Protocol, see WAP Wireless Guru xix Wireless Local Area Networks, see WLAN Wireless Personal Area ... Networks, see WLAN Wireless Personal Area Network, see WPAN wireless technologies xix Wireless Transport Layer Security, see WTLS WLAN, see Wireless Local Area Networks WPAN 1...

Ngày tải lên: 09/08/2014, 19:21

... channel discriminates between short and medium wavelengths. 400 450 500 550 60 0 65 0 700 –1 –0.8 –0 .6 –0.4 –0.2 0 0.2 0.4 0 .6 0.8 1 Wavelength [nm] Sensitivity W–B R–G B–Y Figure 2.14 Normalized spectral ... to facilitate handling such data rates. Compression is the reduction of redundancy in data. Generic lossless compression algorithms, which assure the perfect reconstruction of t...

Ngày tải lên: 09/08/2014, 19:21

... conditions were defined, and a { This is the PDM described in section 4.2. METRIC EVALUATION 67 produced by passing the reference through a temporal low-pass filter. A report of the DVQ metric’s performance ... video sequences. While it still requires the reference as input, the cognitive emulator was shown to improve the predictions of subjective SSCQE MOS data. 3.5 METRIC EVALUATION 3...

Ngày tải lên: 09/08/2014, 19:21

... of 0.2 0.3 0.4 0.5 0 .6 0.7 0.8 0.9 1 All Low Q High Q 50 Hz 60 Hz Pearson non-linear correlation 0.2 0.3 0.4 0.5 0 .6 0.7 0.8 0.9 1 All Low Q High Q 50 Hz 60 Hz Spearman rank-order correlation 0.5 0.55 0 .6 0 .65 0.7 0.75 0.8 0.85 0.9 All ... and Farrell, 19 96) . The responses for two test conditions are shown in Figure 5.2. 0 0.2 0.4 0 .6 0.8 1 0.5 0 .6 0.7 0.8 0.9 1 Noise amplitud...

Ngày tải lên: 09/08/2014, 19:21