gps2ins

Functions to test the power of Fractional Fourier transform with LFM signals

针对MIMO-OFDM系统中期望最大化(EM)信道估计算法在高信噪比(SNR)下带来的误差地板(EF)现象,且OFDM符号的数据传输效率随发射天线数的增加而明显降低,提出一种改进的高效EM信道估计算法。该算法首先引入一种准确的等效信号模型并推导出一种修正的EM算法,改善了EM算法在高SNR下的性能 在多个OFDM间利用相位正交导频序列来提高数据传输效率,同时进行联合信道估计以提高估计性能。仿真实验验证了所提算法具有更高的信道估计性能和更高的数据传输效率。(For multiple-input multiple-output with orthogonal frequency division multiplexing(MIMO-OFDM) systems,the error floor(EF) phenomenon at high signal noise rate(SNR) was induced by the expectation maximum(EM) channel estimation algorithm.In addition,the data transmission efficiency was declined obviously with the increasing number of transmit antennas.According to these problems,an improved and efficient EM channel estimation algorithm was pro-posed.Firstly,an accurate and equivalent signal model was introduc...)

卡尔曼滤波的标准工具包 包含各种卡尔曼滤波器(standard toolbox for kalman Filters)

说明：  这是最新的卫星通信基础理论的Matlab仿真实现，pcma以及信号衰减和延迟的仿真。尽管不是我本人原创，但比较都经典。文件为*.m格式 (This is the latest in satellite communications theoretical basis Matlab Simulation, pcma and signal attenuation and delay in the simulation. Although it was not my original, but more are classics. M*. document format)

不同数据处理中心GPS掩星数据产品的比较，例如折射率，温度，气压等等(Comparative data of different products occultation data processing center GPS, e.g. refractive index, temperature, pressure, etc.)

说明：  MIMO雷达信号处理 李荐 第7章 MATLAB程序(MIMO Radar Signal Processing Jian Li chapter 7 matlab program)

DECISION DIRECTED AND CONSTANT MODULUS ALGORITHMS DERIVED AND EVALUATED FOR MULTICARRIER SYSTEMS

说明：  整个仿真系统是从发射端、瑞利信道、接收端大致的过程(The entire simulation system is a rough process from the transmitter, the Rayleigh channel, and the receiver)

多径参数干扰下的ofdm系统的matlab仿真代码，可供学习(Matlab simulation code of OFDM system under multipath parameter interference can be learned)

雷达功能仿真程序,有需要的可以看一看,有什么问题及时联系(Function of radar simulation program, can be in need to have a look, what s the problem timely contact)