analysis_vr

说明：  通过非线性动力学中混沌研究的poincare图可以很方便的识别出周期，拟周期或者混沌运动，该程序实现了poincare图的绘制(Through the study of nonlinear dynamics in the chaotic poincare map can easily identify periodic, quasi-periodic or chaotic motion, the program achieved poincare mapping)

mobility and that can readily coexist with HSPA and earlier networks. OFDM/OFDMA technology is introduced for the LTE downlink, supporting very high data rates of up to 300Mbps while Single-Carrier FDMA (SC-FDMA) is used in the uplink with data rates of 80Mbps possible. Additionally, LTE supports operation both in paired and unpaired spectrum (FDD and TDD) using channel bandwidths of approximately 1.4MHz up to 20MHz. The frequency domain scheduling can be done in OFDMA. One of the main challenges in OFDMA is the high peak-to-average radio of the transmitted signal, which requires linearity in the transmitter. The linear amplifiers have low efficiency therefore, OFDMA is not an optimized solution for a mobile uplink where the

计算PSNR。可直接调用，两个输入参数im1,im2为两个图象序列，返回值为PSNR的值。(Calculation of PSNR. Can be called directly, two input parameters im1, im2 two image sequences, the return value is the PSNR.)

用matlab实现ARQ 有具体代码和注释 已验证 可运行(Realization of ARQ Verification with MATLAB)

时间序列分析的matlab程序，包括AR和AEMA模型(err)

polyfft processing for channalizer filter

通过运用13折线法实现信号的压缩，使压缩更为的简单(13 fold line achieved through the use of signal compression, so compression is more simple)

使用k均值法对一组数据进行聚类，画出结果图像(Use the k-means clustering, a set of data to draw the resulting image)

matlab仿真线性雷达天线方向图。仿真矩形天线的方向图。(The matlab simulation linear radar antenna pattern. The simulation of rectangular antenna pattern. )

说明：  通过引力搜索算法，进行支持向量机参数优化。实现模式识别和趋势预测。(The parameters of support vector machine are optimized by gravitational search algorithm. Realize pattern recognition and trend prediction.)