geodas-ng_setup

QPSK的调制和解调，解调部分包括时钟和载波的同步等(QPSK modulation and demodulation, the demodulation section includes a clock and carrier synchronization)

OFDM(正交频率调制)实现多载波调制基本思想是将带宽信道分解成许多并行的窄子信道，是每个子信道的想干带宽，从而实现平稳衰落。搭建了完整的OFDM信道链路系统，运用三种不同的信道估计方法(LS信道估计、DFT信道估计、Improved-DFT信道估计)，并对AWGN理想信道和衰落信道误码情况进行了仿真和比较。(OFDM (Orthogonal Frequency Modulation) multicarrier modulation basic idea bandwidth channel is decomposed into a number of parallel narrow subchannels, each subchannel wanted bandwidth, in order to achieve a smooth fading. Build a complete OFDM channel link system, the use of three kinds of different channel estimated method (LS channel estimated, to the DFT letter Tao estimates, Improved-the DFT letter Road estimated), and AWGN ideal letter Road and fading channel bit error situation conducted a simulation and comparison .)

该文介绍了时间序列经典方法，ARMA,ARIMA,AR模型用于解决各种平稳预测问题，并且附上了相应的程序，方便读者运用(This paper introduces the classical time series methods, ARMA, ARIMA, AR model is used to solve a variety of stationary prediction problem, and attach the appropriate procedures to facilitate the use of the reader)

jpeg matlab toolbox jpeg 编解码matlab实现,做试验用,很好的 不错(Jpeg matlab toolbox jpeg decoding matlab, making a test to use, good good)

QPSK调制matlab程序 包括基带成型滤波器 （升余弦滤波器）(QPSK modulation Matlab procedures including baseband shaping filter (or cosine filter))

说明：  多输入多输出系统的MATALAB仿真全部代码，可以运行。(Multiple-input multiple-output system simulation MATALAB all code can run.)

说明：  SAR雷达的BP后向投影成像，可运行出结果(The BP back projection imaging of SAR radar can run the result)

该程序能解决均匀面阵的二维DOA估计问题(The code can solve the problem of 2-D DOA estimation for uniform array.)

基于matlab平台的LDPC编码译码仿真，很实用(LDPC coding and decoding simulation based on MATLAB platform which is really usefull.)

POTDR模拟主程序（输入参数，输出偏振态和fft结果）(POTDR simulation main program (input parameters, output polarization and FFT results))