ellipse

这本书系统的讲了LTE的发展背景，关键技术，以及发展的趋势。对于初学者来说是不错的一本书。(This book introduced the LTE system development background, key technology and trends. For beginners it is a very good book.)

考虑L的三个不同值：L＝256（3个数据段），L＝128(7个数据段)和L=64（15个数据段）。各自的谱估计图如上图所示。可以明显的看到，加窗明显的减小了频谱上的假谱峰，但也更加进一步平滑了谱峰。所以，对于L＝64的情况，在ω＝0.8π的谱线可以很确定的辨认，但是那两个靠近的谱峰不容易区分。对于L＝128的情况，这种情况提供了在分离和检测间最好的均衡。当然，对于在L＝256时的情况，效果是更好的，能够从谱估计图上明显的分辨出三条谱线的存在以及它们幅度关系的强弱。 除了Welch法外，还可以采用对多个周期图求平均的功率谱估计方法的其他方法如Bartlett法等等，在功率谱估计上也能取得较好的结果。(consider three different values : L = 256 (3 data), L = 128 (7 data) and L = 64 (15 data). Their spectral estimation map as shown in Fig. It is clear to see that increase significantly decreasing window of the spectrum of false peaks, but much more to further smooth the peaks. Therefore, L = 64, in the case = 0.8 spectrum can determine the identification, but that the two peaks around is not easy to distinguish. L = 128 for the situation, which provided the separation and detection among the best balanced. Of course, L = 256 in the case, the effect is better, from the spectral estimation map clearly distinguish between the three lines of the existence and their relationship to the rate of strength. In addition to Welch law, but also can be used to map multiple cycle for the average power)

G-Rilling的emd工具箱,很好的完成hht中的黄变换。(G-Rilling s emd toolbox, well done hht of Huang Transform.)

实现图像的拼接与融合，使用SIFT方法，拼接效果较好，例程为两个图片的拼接，实际可实现多个图片拼接(image mosaic)

这是用于处理信号的matlab语言程序。文件中包含2个程序，均可实现信号的全息谱图。(This is used to process signals in matlab language program. File contains two programs, may realize the holographic signal spectrum.)

Mie散射 数值计算仿真，强度，散射角，散射系数等(Mie scattering numerical simulation, strength, scattering angle, scattering coefficient)

系统详细的介绍了卡尔曼滤波的原理和过程，非常适合那些正在学习和研究卡尔曼滤波的朋友们。(The system described in detail the principles and process of the Kalman filter is ideal for those who are learning and research of the friends of the Kalman filter.)

基于TDOA原理，经过我本人测试过的fang算法，很好用的。(TDOA-based principle, after I tested fang algorithm, very good use.)

matlab与matcom混合编程实现绘图功能，有兴趣的(matlab and Matcom Matlab graphics, interested)

此系统为伺服系统的三环PID控制的MATLAB仿真代码(This system is a three-ring servo system PID control of MATLAB simulation codes)