Lax_Friedrichs

lorenz吸引子的画法，及其动态movie的画法。(Lorenz attractor painting method, and its dynamic movie of the painting.)

各种图像融合性能评价参数，包括D,MSE,PSNR,SF,RMSE,NCD,REL,MI,MAE,DREL,EOG,CREF等(Image fusion performance evaluation of various parameters)

用快速独立分量实现盲信号分离的源码程序，已经编译过的，可用(Fast independent component to realize blind signal separation )

the code is related to image retrieval

基于卡尔曼算法的AR模型系数预测，利用卡尔曼滤波算法对AR模型的系数进行实时更新，可以观察到预测准确度有明显提高(Kalman algorithm based on AR model coefficients predicted using the Kalman filter AR model coefficients for real-time updates can be observed significantly improve prediction accuracy)

模拟数字信号进行matlab的FFT运算。对频谱进行对数谱和功率谱的转换。(Analog and digital signal matlab the FFT operation. The number of the spectrum of the spectrum and power spectrum of the conversion.)

求解非线性系统的李雅普诺夫指数的MATLAB程序(Lyapunov index of the nonlinear system of MATLAB)

已知语音文件求出其LPC系数后，调用a_lsf_conversion.m函数求其对应的LSF(Known find their voice files LPC coefficients, call a_lsf_conversion.m corresponding LSF function evaluation)

正交频分复用(OFDM)技术是一种可以有效对抗符号间干扰(ISI)的高速数据传输技术。OFDM是一种特殊的多载波调制方式，它的基本思想是将高速传输的数据流通过串/并转换，变成在若干个正交的窄带子信道上并行传输的低速数据流。OFDM接收机有三个关键技术：信道估计技术，降低峰均比(PAPR)技术和同步技术。OFDM技术能有效的对抗多径衰落等，有着诸多的优点，但是OFDM有一个发展瓶颈，即OFDM信号的峰均功率比很大，很容易导致OFDM信号的交调失真和系统性能的下降。因而如何降低OFDM信号的峰均功率比一直是OFDM技术的一个研究热点问题。论文针对上述问题，重点研究了降低OFDM信号的峰均功率比的SLM与PTS算法，并利用Matlab对算法进行了仿真研究，并对仿真结果进行了分析。(Orthogonal frequency division multiplexing (OFDM) is a high-speed data transmission technology that can effectively combat inter-symbol interference (ISI). OFDM is a special multi-carrier modulation method, its basic idea is to high-speed transmission of data stream through the serial/parallel conversion, in a number of orthogonal narrowband sub-channel parallel transmission of low-speed data stream. OFDM receivers have three key technologies: channel estimation techniques, reduced peak-to-average ratio (PAPR) techniques and synchronization techniques. OFDM technology can effectively combat multipath fading, etc., there are many advantages, but OFDM has a bottleneck in development, that is, OFDM signal peak power ratio is large, it is easy to lead to OFDM signal intermodulation distortion and system performance degradation. Therefore, how to reduce the peak-to-average power ratio of OFDM signal has been a hot topic in OFDM technology. In this paper, the SLM and PTS algorithms for reduc)

error correction code