timing_recovery

电力电子技术与Matlab仿真,很经典的书籍啊，推荐！(Power Electronics Technology And Matlab Simulation)

用matlab实现IFIR滤波器，其中，有关滤波器的各种相关参数可以自行设定，便于分析比较各种参数下的滤波器效果(Implementation of IFIR with matlab. The parameters of filter can be verified by user. This code is helpful for analyzing the influence of different variables.)

本程序是雷达波形匹配滤波器的gui图形界面程序。(This program is the radar waveform matched filter gui graphical interface program.)

用于将层速度转化为动校正速度，使用在地震勘探研究中。(Computing the Vnmo from Vstrata for horizontal strata in seismic research.)

根据设定的m,n的值，可以产生不同的衍射散斑图。(In accordance with the set m, the value of n, can produce different diffraction speckle pattern.)

改进的维纳滤波的matlab代码 .m文件 直接运行(Improved Wiener filter matlab code. M files directly run)

基于光正交码构造了一类新的不规则00c—LDPc码．新的LDPC码是准循环码，其编码复杂度与码长成 线性关系，具有编码复杂度低的特点，它所对应的双向图中没有四线循环．用和积译码算法对新的码字进行了仿 真，结果表明，与具有类似参数的随机码和规则OOc—LDPc码相比，当信道误码率为10。5时，译码增益分别为 0．3和0．15 dB．(Construct a new class of irregular the 00c-LDPc code based on optical orthogonal codes. LDPC codes are quasi-cyclic code, its complex coding with code length linear relationship, with low encoding complexity, the corresponding bidirectional Figure it in four-wire loop. Simulation with integrated decoding algorithm of the new code word, the results show that when the channel bit error rate, compared with the random codes with similar parameters and rules OOc-LDPc code decoding gain were 10.5 0.3 and 0.15 dB.)

LDPC码的完整的编译码，music高阶谱分析算法，最小均方误差（MMSE）的算法，基于欧几里得距离的聚类分析，BP神经网络用于函数拟合与模式识别，单径或多径瑞利衰落信道仿真，外文资料里面的源代码，MIMO OFDM matlab仿真。( Complete codec LDPC code, music higher order spectral analysis algorithm, Minimum mean square error (MMSE) algorithm, Clustering analysis based on Euclidean distance, BP neural network function fitting and pattern recognition, Single path or multipath Rayleigh fading channel simulation, Foreign materials inside the source code, MIMO OFDM matlab simulation.)

In this simulink model , QPSK modulation and demodulation is simulated .A square root raised cosine pulse shaped signal is modulated and given as input to the demodulator.The received signal is demodulated and given to the detector where it is matched filtered and down-sampled .The effects of symbol timing offset can be seen by varying the phase of down-sampling operation.The signal transmitted is recovered at the detector output.

iir滤波器，无限冲激响应滤波器。功能强大(IIR filters, infinite impulse response filter. Powerful)