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无线通信 智能天线技术在基站中的应用
为了能够满足基站易于选址、优质快速的建站要求和易维护、低成本、高可靠的运行要求，本文对以方舱来实现一体化结构基站做出一番探讨。从系统设计的观点阐述了移动通信高性能基站天线设计的几个关键问题，介绍了智能天线技术在基站中的应用，并且用HFSS软件仿真了一种新型的对称阵子天线，该天线驻波比小于2的带宽可以达到6 ...
通讯/手机编程 This m-file displays the time waveform for the Gaussian pulse function and the first and second deri
This m-file displays the time waveform for the Gaussian pulse function and the first and second derivatives of the Gaussian pulse function for a 0.5 nanosecond pulse width. Other values of pulse widths may be used by changing fs,t,t1. The program uses the actual first and second derivative equations ...
行业发展研究 本文介绍了一种基于复合右/左手（composite right/left-handed
本文介绍了一种基于复合右/左手（composite right/left-handed，CRLH）超材料的新型高增益的有源漏波天线(leaky-wave antenna，LWA)。这种天线工作在边射，由无源CRLH漏波部分与放大器相互连接,重新组成一种在辐射过程中逐步增大功率泄漏的结构,从而提高天线的有效口径进而提高其增益。通过放大器的准单向特性而导致的匹配 ...
文件格式 This project aim was to build wireless software modem for data communication between two computers
This project aim was to build wireless software modem for data communication
between two computers using an acoustic interface in the voice frequency range (20Hz–
20,000Hz). The transmitting antenna is a speaker (frequency response of: 90Hz –
20,000Hz) and the receiving antenna is a microphone (fr ...
单片机开发 Bubble Oscillation Algorithm. It is used to implement balancing load traffic, which is similar to wh
Bubble Oscillation Algorithm. It is used to implement balancing load traffic, which is similar to what a semi-smart antenna can do. This algorithm was figured out by Lin Du who obtained PHD in Queen Mary, University of London.
数学计算 Coaxial feed structures are widely used in ultra-wide band antennas . This paper modeled the charact
Coaxial feed structures are widely used in ultra-wide band antennas . This paper modeled the characteristic of the monopole antenna feeded by coaxial line by FDTD in the time-domiain,which showes that . Firstly, it introduced the theory of the arithmetic and the particularly realization in the calcu ...
其他 ofdm信道特性 Channel transmission simulator Channel transmission simulator ％ ％ inputs: ％ sig2 - noi
ofdm信道特性
Channel transmission simulator
Channel transmission simulator
％
％ inputs:
％ sig2 - noise variance
％ Mt - number of Tx antennas
％ Mr - number of Rx antennas
％ x - vector of complex input symbols (for MIMO, this is a matrix, where each column
％ is the value of the antenna outputs a ...
matlab例程 IN highly scattered enviroment
IN highly scattered enviroment，the Capacity of a MIMO channel with nt transmit antenna and nr recieve antenna is analyzed. The power in parallel channel (after decomposition) is distributed as water-filling algorithm
matlab例程 The following is a list of MATLAB codes which includes the radar absorbing material design, the ant
The following is a list of MATLAB codes which includes the radar
absorbing material design, the antenna pattern, the observation points generation, and the amplitude
error and phase error calculations.
通讯编程文档 contains pdf documents for MIMO in wirless communications, MI_NLMS adaptive beamforming algorithm fo
contains pdf documents for MIMO in wirless communications, MI_NLMS adaptive beamforming algorithm for OFDM system, narrowband beamforming algorithm for smart antenna