Lecture 2 - RF Fundamentals
... http://www.fab-corp.com February 20 05 Copyright 20 05 All Rights Reserved 22 External Antenna Contd 2. 4 Gz dB Log Periodic Antenna 2. 4 Gz dB Magnetic Mount Omni Antenna February 20 05 Copyright 20 05 All ... ARSINIDE February 20 05 LIGHT VELOCITY (km/s) 1.0 1.00003 1.33 1.46 1.5 2. 0 3.4 3.6 Copyright 20 05 All Rights Reserved 300,000 300,000 22 5,000 20 5,000 20 0,000 150,000...
Ngày tải lên: 13/09/2012, 11:16
Lecture 2 ArithCode
... (0.10110111101100000101 )2 20 bits 0.71753375 < 0.71753407… < 0.71753500 b) Codelength m: m=-log2(r) = -log2(0.0000 125 ) = 19.6 =20 bits c) Bitrate: R =20 bits/10 chars = 2. 0 bits/char • Huffman coder: (1+3 +2+ 1+1+4+4 +2+ 1+1)/10 =2. 2 ... 2/ 10=0 .2 1/10=0.1 1/10=0.1 [C(si), C(si+1)) [0.5, 1.0) [0.4, 0.5) [0 .2, 0.4) [0.1, 0 .2) [0.0, 0.1) Example 1: Encoding S W I M 0.5 0.1 0...
Ngày tải lên: 26/10/2012, 11:57
... GHz Wireless Environment and Wireless LANs Wireless Spectrum (3) Wireless LAN (IEEE 8 02. 11b/g) • 2. 4 GHz 30 MHz 300 MHz Wireless LAN (IEEE 8 02. 11a) • GHz GHz Bluetooth • 2. 45 GHz Wireless Environment ... Spectrum Wireless Environment and Wireless LANs Agenda (2) ● Wireless networks ■ Mobile wireless WANs ■ Fixed wireless WANs ■ WLANs: the 8 02. 11 f...
Ngày tải lên: 29/10/2013, 06:15
... while in the second case, this applies to the nonequilibrium evolution of a vibrated granular bed 102 Shaking a box of sand I – a simple lattice model Table 7.1 Two different nonequilibrium regimes ... 100 Shaking a box of sand I – a simple lattice model ageing, and many other glassy phenomena, is still somewhat mysterious, although ongoing...
Ngày tải lên: 01/11/2013, 08:20
Modulation and coding course- lecture 2
... quantization levels and Lecture 10 Quantization example amplitude x(t) 111 3.1867 Quant levels 110 2. 27 62 101 1.3657 100 0.45 52 boundaries 011 -0.45 52 010 -1.3657 001 -2. 27 62 xq(nTs): quantized ... Quantization noise variance: ∞ 2 σ = E{[ x − q( x)] } = ∫ e ( x) p( x)dx = σ Lin + σ Sat q σ −∞ L / −1 Lin =2 l =0 ql2 p ( xl )ql Uniform q 12 Lecture σ Lin q2 = 12 13 Uniform...
Ngày tải lên: 08/11/2013, 18:15
Tài liệu lecture 2: Communication Concepts ppt
... transmission It is the mode of communication used on a PC’s serial port as well as on local area networks lecture 2.doc Page (3) CSN200 Introduction to Telecommunications, Fall 1999 Lecture_ 02 Point-to-point ... predominant method of transferring information in data communications Data bits are sent serially or sequentially bit-by-bit over a single wire or communications circuit Sending...
Ngày tải lên: 10/12/2013, 08:15
Tài liệu Lecture 2: HỆ ĐẾM-CƠ SỐ ppt
... Chuyển từ số hệ số B sang thập phân HỆ CƠ SỐ Binary: hệ nhị phân (dùng kí số 0,1) Decimal: Hệ thập phân(dùng kí số 0,1…,9) Octave: Hệ bát phân (Dùng kí số 0,1, 7) Hexadecimal: Hệ thập lục ... SỐ NHỊ PHÂN, MỨC LOGIC Hệ thống số thường dùng hệ thập phân dùng 10 kí số: 0,1,2,3,4,5,6,7,8,9 Hệ nhị phân sử dụng kí số Trong hệ thống số, logic gọi HIGH...
Ngày tải lên: 13/12/2013, 04:15
Tài liệu MULTIPLE LINEAR REGRESSION MODEL Introduction and Estimation ppt
... of the multiple linear regression model PRF consists of two components : a controlled part and a stochastic part (stochastic disturbance - random disturbance) εi is a random variable and follows ... the multiple regression model 10.1 BLUE – “Best Linear Unbiased Estimator.” This property is the same as for the simple regression model We should understand three properti...
Ngày tải lên: 20/12/2013, 18:15
Tài liệu Kinh tế ứng dụng_ Lecture 2: Simple Regression Model ppt
... Written by Nguyen Hoang Bao May 20, 2004 Applied Econometrics 10 Simple Linear Regression Model Workshop 2: Simple Regression Models 1) Retrieve data file AIDSAV.WK1, which contains the data ... -60.0 -80.0 Foreign Aid as per cent of GDP Figure 7 .2: Written by Nguyen Hoang Bao May 20, 2004 Applied Econometrics Simple Linear Regression Model Residual Plot (S/Y-S/Yfit) versu...
Ngày tải lên: 27/01/2014, 11:20