tongxinxitong

说明：  利用wifi信号进行精准的定位，mit代码(locolizing using wifi)

一个详细讲述卡尔曼滤波的ppt，通过它可以学习有关卡尔曼滤博，和机器人自主定位的知识( Kalman filter detailed ppt, through which you can learn more about Bo Kalman filter, and knowledge of robot autonomous localization )

说明：  实现LTE系统级仿真，MIMO系统仿真，16QAM仿真(Implementare la simulazione a livello di sistema LTE)

In recent years, the number of portable mobile terminal users is increasing with improvement of the wireless communication environment. In addition, mobile multimedia services also bring the increase of wireless traffic and lack of spectrum resources. As a technique for efficient spectrum use, spectrum sharing receives much attention. It dynamically assigns a spectrum channel from a larger area network such as WiMAX to smaller area networks such as WiFi-based wireless LANs and achieves to increase the total wireless communication capacity of this area. In a case where all providers are cooperative, the spectrum sharing can be realized easily and improve user throughput in average. In another case where providers are not cooperative, some spectrum trading methods based on auction theory had been proposed.

说明：  MIMO线性预编码的ZF,MMSE算法，程序可以直接运行并且注释齐全，大胆放心下载吧(ZF, MMSE algorithm of MIMO Linear Precoding)

OFDM系统包括OFDM系统的调制解调，IFFT及FFT变换，保护间隔的加入对系统性能的改善，以及多径干扰、高速移动对系统误码率的影响。(The OFDM system includes modulation and demodulation of the OFDM system, IFFT and FFT transformation, the improvement of the protection interval to the system performance, and the influence of multipath interference and high-speed mobile on the system BER.)

AM调制系统的设计及仿真，包括载波信号，载波信号频谱，调制信号，调制信号频谱等图像(Design and Simulation of AM modulation and demodulation)

这是自由空间光通信实现OOK、PPM、DPPM调制解调并计算在高斯信道中的误码率的Matlab程序。(This is a free-space optical communications to achieve OOK, PPM, DPPM modulation and demodulation in the Gaussian channel and calculate the bit error rate in Matlab.)

通过两个例子，将Optisystem和matlab这两个软件结合进行光学仿真，两个例子分别为光波频率右移和光波幅度调制。通过这两个例子，能很好的理解这两个软件的协同仿真。上传的文件包括文献和源码，还有optisystem的osd文件，文件很全。(Two examples are used to combine the two software Optisystem and MATLAB for optical simulation. The two examples are the right shift of the light frequency and the modulation of the amplitude of the light wave. Through these two examples, we can well understand the collaborative simulation of these two software. Upload files, including documents and source code, as well as the optisystem OSD file, the document is very complete)

FBMC的各个模块的代码实现，适合FBMC入门参考。(Code Implementation of Each Module of FBMC)