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将地震波转换成反应谱的程序。。。。。。。。。。。(seismic wave to spectrum..........)

　研究了基于滤波器组的单载波频域均衡技术的基本原理和实现方法,通过系统对比基于滤波器组的方法与基于FFT方法的异同之处,从其产生的机理上阐明了基于滤波器组的单载波频域均衡技术能够克服FFT 方式的主要缺点的原因(Of filter-based single-carrier frequency domain equalization technology, the basic principle and method, through the system, filter-based approach compared with the FFT method based on the similarities and differences between, from production to clarify the mechanism of the filter-based single-carrier frequency domain equalization techniques to overcome the main drawback of FFT method because)

使用多种方法预测股市的变化率 Estimate Volatility using different methods(Estimate Volatility using different methods)

src 算法中的迭代算法,通过该算法可以计算SRC的参数，通过使用线性表示来求。(src algorithm iterative algorithm, the algorithm can be calculated by the SRC parameter, by using a linear representation requirements.)

EMD经验模态分解,用于信号处理，也常和hilbert变换一起用于信号特征提取、信号消噪等领域(EMD empirical mode decomposition for signal processing, and is often used in conjunction with hilbert transform signal feature extraction, signal de-noising and other fields)

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说明：  为了提高认知无线电中感知用户对授权用户(主用户) 的检测概率,提出一种新的基于循环 谱统计量的主用户信号检测算法. 该算法利用循环谱离散频域平滑方法,对信号的循环谱在循环频 率处建立合理的检测统计量,然后求解得到对应不同虚警概率的判决门限,以使感知用户能检测信 噪比更低的授权用户信号.(To increase the detection probability of sensing users for licenced users (primary signals) in the cognitive radio , it put s forward a new primary users signal method based on cyclic spect rum statis2 tics. By using discrete f requency smoothing of cyclic spect rum , this algorithm establishes the reason2 able detection statistics on the cyclic f requency of signal cyclic spect rum , then solves and obtains the decision threshold correspond to different false alarm probability , as a result , making the sensing users can detect licenced users signal under lower signal in noise ratio (SNR) .)

FFT编程实例 进行FFT变换，显示频谱图 (FFT transform FFT programming examples show that the spectrum graph)

说明：  matlab实现光伏阵列的仿真和最大功率点跟踪(matlab simulation and realization of photovoltaic array maximum power point tracking)

对构件进行优化分析时，需要将其剖分成四面体网格单元，本源码可以用来求每一个小四面体的刚度矩阵(Optimization analysis of the components need to be partitioned into tetrahedral grid cell, the source can be used to seek the stiffness matrix of each small tetrahedron)