Description: S60-programming-a-tutorial-guide-symbian.
1 Introduction to Mobile-Phone Systems 1
1.1 Wireless Technologies 1
1.2 Cellular Systems 2
1.3 Elements of a Mobile-Phone System 4
1.4 Keeping Users’ Calls Separate 5
1.5 Multipath Propagation 7
1.6 2G Mobile-Phone Systems 9
1.7 GPRS Systems 10
1.8 3G Mobile-Phone Systems 13
1.9 IP Multimedia Subsystem 16
1.10 Mobile-Phone Hardware 17
2 Introduction to Symbian OS 19
Introduction 19
2.1 The Development of Symbian OS 20
2.2 Symbian OS User Interfaces 21
2.3 Coding Idioms 23
2.4 Tool Chains 28
3 The Console Application 33
Introduction 33
3.1 Creating a Console Application 33
3.2 CBase Classes 38
3.3 Protecting Memory 38
3.4 Putting It Into Practice: An Engine for a Simple
Card Game 46
Summary 56 Platform: |
Size: 1741421 |
Author:wanqiu |
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Description: S60-programming-a-tutorial-guide-symbian.
1 Introduction to Mobile-Phone Systems 1
1.1 Wireless Technologies 1
1.2 Cellular Systems 2
1.3 Elements of a Mobile-Phone System 4
1.4 Keeping Users’ Calls Separate 5
1.5 Multipath Propagation 7
1.6 2G Mobile-Phone Systems 9
1.7 GPRS Systems 10
1.8 3G Mobile-Phone Systems 13
1.9 IP Multimedia Subsystem 16
1.10 Mobile-Phone Hardware 17
2 Introduction to Symbian OS 19
Introduction 19
2.1 The Development of Symbian OS 20
2.2 Symbian OS User Interfaces 21
2.3 Coding Idioms 23
2.4 Tool Chains 28
3 The Console Application 33
Introduction 33
3.1 Creating a Console Application 33
3.2 CBase Classes 38
3.3 Protecting Memory 38
3.4 Putting It Into Practice: An Engine for a Simple
Card Game 46
Summary 56-S60-programming-a-tutorial-guide-symbian.1 Introduction to Mobile-Phone Systems 11.1 Wireless Technologies 11.2 Cellular Systems 21.3 Elements of a Mobile-Phone System 41.4 Keeping Users Calls Separate 51.5 Multipath Propagation 71.6 2G Mobile-Phone Systems 91.7 GPRS Systems 101.8 3G Mobile-Phone Systems 131.9 IP Multimedia Subsystem 161.10 Mobile-Phone Hardware 172 Introduction to Symbian OS 19Introduction 192.1 The Development of Symbian OS 202.2 Symbian OS User Interfaces 212.3 Coding Idioms 232.4 Tool Chains 283 The Console Application 33Introduction 333.1 Creating a Console Application 333.2 CBase Classes 383.3 Protecting Memory 383.4 Putting It Into Practice: An Engine for a SimpleCard Game 46Summary 56 Platform: |
Size: 1740800 |
Author:wanqiu |
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Description: 由于信号进行多径传播达到接收点处的场强来自不同传播的路径，各条路径延时时间是不同的，而各个方向分量波的叠加，又产生了驻波场强，从而形成信号快衰落称为瑞利衰落。-Because the signal carries on the multipath propagation to achieve the point of reception place field intensity from the different dissemination way, each way delay time is different, but each direction component wave superimposition, also has had the standing wave field intensity, thus forms the signal quick decline to be called Rayleigh to decline. Platform: |
Size: 1024 |
Author:卡其米奇 |
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Description: matlab中多径传播对误码率性能的影响的仿真代码验证-matlab in the multipath propagation on the BER performance of the simulation code verification Platform: |
Size: 2048 |
Author:王伟 |
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Description: MATLAB的瑞利衰落信道仿真，针对服从瑞利分布的多径信道进行模拟仿真，加深对多径信道特性了解。-Channel Emulation of Rayleigh fading by using MatLab,which is aimed at the Multipath Propagation channel that obey Rayleigh distribution, so it could be furthered comprehension of characteristic on the Multipath Propagation channel. Platform: |
Size: 226304 |
Author:林俊 |
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Description: Radio Propagation
• Large scale fades
– Attenuation: in free space, power degrades by 1/d2
– Shadows: signals blocked by obstructing structures
• Small scale fades
– Multipath effects:
» Rapid changes in signal strength over a small area or
time interval
» Random frequency modulation due to varying
Doppler shifts on different multipath signals
» Time dispersion (echoes) caused by multipath
propagation delays
– Even when mobile is stationary, the received signals may
fade due to movement of surrounding objects-Radio Propagation
• Large scale fades
– Attenuation: in free space, power degrades by 1/d2
– Shadows: signals blocked by obstructing structures
• Small scale fades
– Multipath effects:
» Rapid changes in signal strength over a small area or
time interval
» Random frequency modulation due to varying
Doppler shifts on different multipath signals
» Time dispersion (echoes) caused by multipath
propagation delays
– Even when mobile is stationary, the received signals may
fade due to movement of surrounding objects Platform: |
Size: 270336 |
Author:vidhyarthi |
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Description: In wireless communications, fading is deviation of the attenuation that a carrier-modulated telecommunication signal experiences over certain propagation media. The fading may vary with time, geographical position and/or radio frequency, and is often modelled as a random process. A fading channel is a communication channel that experiences fading. In wireless systems, fading may either be due to multipath propagation, referred to as multipath induced fading, or due to shadowing from obstacles affecting the wave propagation, sometimes referred to as shadow fading.
Platform: |
Size: 14336 |
Author:kanniyappan/AIHT |
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Description: 用jake模型分析通信中多径传播的影响，内容包括所有源程序和文档报告-Communication with jake model the impact of multipath propagation, including all source code and documentation reports Platform: |
Size: 1525760 |
Author:zhangbo |
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Description: 在MATLAB中对超宽带波形设计中产生其前十五阶导数的仿真程序及多径传播的仿真程序-In MATLAB, the design of ultra-wideband waveform generation derivative of its first fifteen simulation program and multi-path propagation of the simulation program Platform: |
Size: 3072 |
Author:yalinlee |
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Description: 多径传播的部分代码，包括傅里叶变换，傅里叶反变换，幅频和相频特性-Multipath propagation part of the code, including Fourier transform Platform: |
Size: 3072 |
Author:login |
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Description: 衰落是由于发射机与接收机之间空间位置的微小变化引起的，描述小范围内接收信号场强中瞬时值的快速变化特性，是由多径传播和多普勒频移两者共同作用的结果，包括由多径效应引起的衰落和信道时变性引起的衰落，具有信号的多径时延扩展特性和信道的时变特性-Fading is caused due to a slight change of the position of the space between the transmitter and the receiver, the characteristics of the receiving signal field strength, the instantaneous value of the rapid changes in the description within, by multipath propagation and Doppler frequency shift of the joint action of botha result, time-varying fading caused by multipath effects and channel fading due to multipath delay spread characteristics and channel time-varying characteristics of the signal Platform: |
Size: 70656 |
Author:maimuyu |
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Description: This file is the programs of (chapter 4) of book (Modeling the Wireless Propagation Channel a Simulation Approach with MATLAB) which is related to introduction to multipath. It helps you to simulate multipath wireless channel. Platform: |
Size: 16384 |
Author:mostafap |
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Description: This file is the programs of (chapter 6) of book (Modeling the Wireless Propagation Channel a Simulation Approach with MATLAB) which is related to shadowing and multupath. It helps you to simulate wireless channel. Platform: |
Size: 13312 |
Author:mostafap |
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Description: Using the impulse response modeling of the
indoor radio channel, the results of extensive multipath propagation measurements at two office buildings are reported Platform: |
Size: 390144 |
Author:KIKI |
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Description: 有关于海洋环境噪声以及信道多径传播的程序-About the program of the marine environment and channel noise multipath propagation Platform: |
Size: 1024 |
Author:于朝阳 |
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Search - multipath propagation