时间序列工具箱 ，内含双谱，AR模型参数估计程序
上传时间： 2015-02-08
上传用户：米卡
功率谱估计的应用范围很广，在各学科和应用领域中受到了极大的重视。在《现代信号处理》课程中讲述了经典谱估计和现代谱估计这两大类谱估计方法；经典谱估计是基于傅立叶变换的，虽然具有运算效率高的优点，但是频谱分辨率低同时旁瓣泄漏严重，对长序列有着良好的估计。为了克服经典谱估计的缺点，人们开展了对现代谱估计方法的研究。现代谱估计是以随机过程的参数模型为基础的，有最大似然估计法、最大熵法、AR模型法、预测滤波器法。现代谱估计对短序列的估计精度高，同经典谱估计互为补充。在认真学习了现 代谱估计方法后，我选择了现代谱估计中的AR模型法的仿真作为题目。下面给出AR模型的相关理论和仿真实现。
标签： 功率谱估计
上传时间： 2013-12-25
上传用户：yepeng139
现代谱估计用莱文森-德宾(Levinson-Durbin)算法求解尤利-沃克(Yule-Walker)方程。 形参说明： r:双精度实型一维数组，存放Yule-Walker方程的元素r(0),r(1),...r(p)。 p:AR模型阶数。 a:AR模型系数a(0),a(1),...a(p)。 v:预测误差功率
标签： Levinson-Durbin Yule-Walker 谱估计 算法
上传时间： 2014-01-26
上传用户：ippler8
在线签名鉴定，内含AR实现算法和DTW算法源程序，并拥有应用实例
标签：
上传时间： 2013-12-24
上传用户：风之骄子
使用维纳滤波器对信号进行处理，得到噪声状况下的信号，这个滤波器是数字信号处理中非常经典的一个。代码里还提供了维纳的AR参数估计
上传时间： 2015-06-02
上传用户：royzhangsz
atmel at91sam7s header file extented, some extra register definitions are set and extra functions are dinifined
标签： extra definitions functions extented
上传时间： 2015-07-10
上传用户：gmh1314
模式识别中的在线签名鉴定，包括AR实现算法，DTW算法及应用实例。很好用
标签： 模式识别
上传时间： 2015-07-13
上传用户：kr770906
zemax源码： This DLL models an anamorphic aspheric surface. This surface is essentially an even aspheric surface with different terms for the x and y directions. The sag is given by: Z = ((CX*x*x)+(CY*y*y)) / (1 + sqrt(1-((1+KX)*CX*CX*x*x)-((1+KY)*CY*CY*y*y))) + AR*( (1 - AP)*x*x + (1 + AP)*y*y )^2 + BR*( (1 - BP)*x*x + (1 + BP)*y*y )^3 + CR*( (1 - CP)*x*x + (1 + CP)*y*y )^4 + DR*( (1 - DP)*x*x + (1 + DP)*y*y )^5 Note the terms AR, BR, CR, and DR ... have units of length to the -3, -5, -7, and -9 power. The terms AP, BP, CP, and DP are dimensionless. The surface is rotationally symmetric only if AP = BP = CP = DP == 0 and CX = CY and KX = KY.
标签： surface This essentially anamorphic
上传时间： 2015-07-25
上传用户：lht618
· Develop clear, readable, well-documented and well-designed programs in the C Programming Language. · Develop software in the Unix/Linux using tools such as gcc, gdb, and make. · Locate and interpreting “man pages” applicable to application-level system programming. · Use the POSIX/Unix API to system functions to manage process and sessions as well as use signals and pipes for inter-process communication. · Understanding how synchronization might become problematic in light of concurrency. · Understand how to communicate and cooperate with a project partner.
标签： well-documented well-designed Programming Language
上传时间： 2015-08-16
上传用户：yuchunhai1990
This paper deals with the problem of speech enhancement when a corrupted speech signal with an additive colored noise is the only information available for processing. Kalman filtering is known as an effective speech enhancement technique, in which speech signal is usually modeled as autoregressive (AR) process and represented in the state-space domain.
标签： speech with enhancement corrupted
上传时间： 2015-09-07
上传用户：zhangyi99104144
