ConstellGNSSToolkit

关于polar codes的源码，简单的仿真。(An Brief Introduction to Polar Codes)

信道估计的大量参考文献，尤其是对于水声信道的估计，便于下载(Channel estimation of a large number of references, especially for the estimate of the underwater acoustic channel, easy to download)

多GPS天线姿态确定程序，包括文件读取、单点定位、双差定位、坐标转换以及姿态确定等。(a MATLAB toolbox for determining the attitude of a rigid platform by means of multiple non-dedicated antennas using global positioning system is presented. The programs embedded in this toolbox cover the RINEX data analysis, single point positioning, differential positioning, coordinate conversion, attitude determination, and other auxiliary functions.)

ofdm system 1. applyOFDMChannel 2. calculateOFDMBER 3. generateOFDMSignal 4. getOFDMPreambleAndPilot 5. OFDMReceiver 6. OFDMSynchronizationExample 7. OFDMTransmitter 8. processOFDMScopes 9. receiveOFDMSignal

2 1stbc coding 2 1stbc调制程序(2 1stbc coding 2 1stbc modulation program)

说明：  一种快速仿射投影算法仿真,用于自适应降噪的DSP控制(The simulation of a fast affine projection algorithm)

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：  P-M非线性各向同性扩散滤波，用于去除图像或者地震数据上的噪声(Used to remove noise from images or seismic data.)

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)

说明：  SC-FDE相位噪声比较(SC-FDE phase noise comparison)