nonlinear-PAPR

绘制了24课GPS卫星围绕地球旋转的动态图(A dynamic map of the rotation of GPS satellites around the Earth in lesson 24 has been drawn.)

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。并请描述：自己用计算机产生的经典谱是正确的依据。(2. Regarding the doppler spectrum of the wireless channel, please answer the following questions: (1) in some wireless channels, doppler frequency shift will cause aliasing of the output signals of the wireless channel.Describe the various causes of aliasing; (2) there is a classic spectrum in the doppler spectrum in the wireless channel, please explain the mechanism of producing this spectrum shape; (3) please use Simulink tool to write code (s-function mode) to generate a single-path Rayleigh channel, whose doppler spectrum is the classical spectrum, in which the moving rate is 120km/h.And please describe: your own computer generated classical spectrum is the correct basis.)

说明：  一种基于独立分量分析的改进算法． 可用于瞬时混合的盲分离．(based on independent component analysis algorithm improvements. For transient mixed Blind separation.)

单片机发送报文控制手机模块GR47进行gprs连接登陆，发送接收数据(SCM reportedly sent mobile phone text control module for EDGE connectivity GR47 landing, send and receive data)

说明：  这是SCMA和polar编码的matlab源文件(This file is the matlab source of the SCMA and polar coded)

大规模MIMO信道容量分析，主要分析了BS和MS天线数不断增大时，对信道容量的影响。(The analysis to Massive MIMO channel capacity as the antennas of BS and MS grow up. )

Prime number program. Written in C

正交频分复用系统中信号的调制与解调，我们用傅里叶反变换和变换来实现(Orthogonal frequency division multiplexing system signal modulation and demodulation, and we use the inverse Fourier transform to achieve transform)

说明：  语音处理 改变声速变速不变调 改变声调不变速(Speech Processing Variable Speed Modification)

Cbuild操作西门子tc35模块的源码,可以控制短信芯片,进行收发操作和端口操作,()