bianyuanjiance

source code for calculating DFT by overlap save mathod

四阶龙格库塔法的一个实例 希望能够帮助大家(Fourth-order Runge-Kutta method)

说明：  谱估计的非参数DOA(Dorection of Arrive)方法----MUSIC(Multi Signal Classification，多重信号分类)算法(spectrum estimation of parameters DOA (Dorection of Arrive) method-M USIC (Multi Signal Classification, multiple signal classification) algorithm)

说明：  广义互相关函数，包含所有互相关的权函数，可以方便的使用它，其中PHAT加权效果最好！(Generalized cross-correlation function, contains all of the right to cross-correlation function, can easily use it, in which the weighted best PHAT!)

将波纹钢板桥涵结构简化为单位宽度的固支圆弧梁,同时考虑波纹钢板桥涵结构和土的共同作用,首次建立了该结构的计算模型,推导了该结构位移、应力的解析解.实例计算结果表明:理论计算结果和现场实测结果相当吻合.在此基础上,编制MATLAB程序,进一步分析波纹板厚、波峰高度、波长、结构半径,土体自重、侧压力系数,以及弹性模量对结构位移、应力的影响,为该结构优化设计和施工提供了理论依据.(The simplified structure of corrugated steel culvert unit width clamped circular beam, taking into account the corrugated steel culvert structure and interaction of soil for the first time to establish a computational model of the structure, the structural displacement derived analytical solution of stress. Example calculation the results show that: the theoretical calculations and field measurement results are quite consistent on this basis, the preparation of the MATLAB program, further analysis of corrugated sheet thickness, wave height, wavelength, structure radius, the weight of soil, lateral pressure coefficient, and elastic modulus of the structure. displacement, the impact of stress for the structural optimization design and construction provides a theoretical basis.)

说明：  描述了基于瑞利信道下的频谱感知的问题，使用的蒙特卡罗法进行仿真。(Based on Rayleigh Road, described under the issue of spectrum sensing, the use of Monte Carlo simulation.)

在加入高斯白噪声的情况下,假设信噪比为10dB，形成传统波束形成法、Bartlett波束形成法、Capon波束形成法的空间谱图(Prior to joining the case of white Gaussian noise, assuming the SNR is 10dB, the formation of conventional beamforming method, Bartlett beamforming method, Capon Beamforming spectrum of space law)

用matlab对wav文件采用不同的方式读取（wavread和fopen），并对其进行低通滤波处理。滤波用的fir直接型低通滤波器(to read the wav file in different ways with Matlab (wavread, and fopen), and then low-pass filtering. the low-pass filter is direct_type FIR filter )

用malab编译的、利用二次插值求解的优化算法(Malab compiled with the use of quadratic interpolation to solve the optimization algorithm)

标准程序源代码标准程序源代码标准程序源代码(biao zhun cheng xu yuan daima)