Untitled1

说明：  常用的两种信道估计算法，基于matlab，可以正常运行(Channel estimation algorithm, based on MATLAB)

瑞利衰落信道，是一种无线电信号传播环境的统计模型。这种模型假设信号通过无线信道之后，其信号幅度是随机的，即“衰落”，并且其包络服从瑞利分布。这一信道模型能够描述由电离层和对流层反射的短波信道，以及建筑物密集的城市环境。(Rayleigh fading channels, the statistical model of a radio signal propagation environment. This model assumes that after the signal through the radio channel, the signal amplitude is random, ie, the " fading" and the envelope of the Rayleigh distribution. This channel model is able to describe the HF channel reflected by the ionosphere and troposphere, as well as building a dense urban environment.)

The whole reuse mode of LTE is simulated systematically, which is a good learning program.

说明：  简单的时延波束形成算法，实现简单，并画出指向性图(Simple delay beamforming algorithm)

实现windows和linux之间的通信 或者 window间通信 linux间通信(Communication between windows and Linux or communication between Linux communication between window)

说明：  利用通信系统中调制信号的循环平稳特性,对频谱空洞进行检测,提升频谱感知技术在低信噪比下的性能。实验结果表明:与传统能量检测方法相比,采用循环特征检测方法改善了认知无线电中频谱空洞的检测能力。(Based on the cyclostationarity of modulation signals, spectrum hole is detected, aiming at the improve- ment of the performance of spectrum sensing in low SNR situation. The results show that comparing with the tra- ditional energy detection technique, cyclostationarity-based spectrum sensing technique has greatly improved the detective ability in cognitive radio.)

西門子CNC系統編程代碼表,對初學者幫助很大(Siemens CNC system control code )

说明：  GPS信号模拟软件，模拟GPS设备向串口输出0183格式标准语句，配合串口虚拟工具使用，可以在普通电脑上调试(GPS signal simulation software, which simulates GPS equipment to output 0183 standard statements to serial port, can be debugged on ordinary computer with serial virtual tools.)

ofdm 仿真 ofdm 仿真 ofdm 仿真 ofdm 仿真(ofdm simulation ofdm simulation ofdm simulation ofdm simulation of)

是学习socket编程难得的pdf，udp，tcp编程必看(It is rare to learn socket programming pdf, udp, tcp programming see)