GSM-cell

说明：  2. 关于无线信道的多普勒谱，请回答以下问题： (1) 在某些无线信道中，多普勒频移会引起无线信道输出信号的混叠。请描述产生混叠的各种原因； (2) 无线信道中的多普勒谱有一种经典谱(classic spectrum)，请解释产生这种谱形状的机理； (3) 请用Simulink工具编写代码(S-Function方式)，产生一单径瑞利信道，其多普勒谱为经典谱，其中移动速率为120km/h。并请回答：证明自己用计算机产生的经典谱是正确的可能方法。 (On the wireless channel of the Doppler spectrum, please answer the following questions: (1) In some radio channels, the Doppler frequency shift will cause the output signal of the wireless channel aliasing. Please describe the aliasing produced a variety of reasons (2) wireless channel in the Doppler spectrum has a classical spectrum (classic spectrum), please explain the mechanism of produce such spectral shape (3), please use the Simulink tool to write code ( S-Function mode), resulting in a single-path Rayleigh channel, the Doppler spectrum for the classical spectrum, including mobile rate of 120km/h. And requested the answer: that they used computer-generated classical spectrum is the right possible way.)

这是在uwb系统中，用TOA定位法的的整个系统的仿真程序源码 (This is a simulation program source code for the entire system in uwb systems, TOA positioning method)

虚拟串口工具，可以在普通电脑上虚拟成对串口，方便进行串口编程的本地调试(Virtual Serial Port Tool, which can be virtual paired serial ports on ordinary computers, facilitates the local debugging of serial port programming.)

说明：  本程序为回波抵消程序，程序中附有解释，很明了，并能到达到消除回波的效果(This procedure for the echo cancellation process, accompanied by explanation of procedures, it is clear, and able to achieve the elimination of echo effect)

数组可以存放5个人的姓名，每个姓名包括first name，middle name和last name，输出姓名时，其中middle name只取大写的首字母，利用索引编写程序，使得用户输入last name后，输出姓名的全称。(array can store the names of five individuals, including the names of each first name, middle name and last name, the name of the output, which only middle name from the first uppercase letter, the use of indexing programming, enabling users to import last name, the name of the generic output.)

基于压缩感知的MASSIVE MIMO信道估计，采用OMP算法解决稀疏信道估计问题。MASSIVE MIMO多小区多用户模型，合成稀疏信道（有效解决导频污染）。(Based on compressed sensing for MASSIVE MIMO channel estimation, OMP algorithm is used to solve the sparse channel estimation problem. MASSIVE MIMO multi cell and multi-user model, to synthesize sparse channel (effectively solve pilot pollution).)

wireless_location_korean_cdma for thanhstore

无线通信中，设备到设备技术的控制可控制，提高抗干扰能力，频谱利用率(In wireless communications, control of equipment-to-equipment technology can be controlled to improve anti-interference ability, spectrum utilization)

QAM高阶调制 恒模盲均衡算法 CMA Equalization Algorithm(QAM CMA Equalization Algorithm)

说明：  多径信道的生成函数 ，瑞利多径衰落信道生成。(Multipath channel generate. This function generates a uncorrelated multipath Rayleigh fading matrix.)