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Wavelet
传统的信号理论,是建立在Fourier分析基础上的,而Fourier变换作为一种全局性的变化,其有一定的局限性。在实际应用中人们开始对Fourier变换进行各种改进,小波分析由此产生了。小波分析是一种新兴的数学分支,它是泛函数、Fourier分析、调和分析、数值分析的最完美的结晶;在应用领域,特别是在信号处理、图像处理、语音处理以及众多非线性科学领域,它被认为是继Fourier分析之后的又一有效的时频分析方法。 小波变换与Fourier变换相比,是一个时间和频域的局域变换因而能有效地从信号中提取信息,通过伸缩和平移等运算功能对函数或信号进行多尺度细化分析(Multiscale Analysis),解决了Fourier变换不能解决的许多困难问题。(The traditional signal theory, is based on Fourier analysis based on Fourier transform, and as a kind of global change, it has some limitations. In the actual application of Fourier transform people began to various improved, wavelet analysis produced. Wavelet analysis is a new branch of mathematics, it is functional, Fourier analysis, harmonic analysis, numerical analysis of the crystallization of the most perfect In the fields of application, especially in signal processing, image processing, audio processing as well as many nonlinear scientific fields, it is considered to be the Fourier analysis after another effective time-frequency analysis method. Wavelet transformation and Fourier transform, compared is a time and frequency domain and the local transform can effectively extract information from signal, through the telescopic peace shift etc operation function of the function ?
)
- 2011-06-26 20:07:10下载
- 积分:1
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BPSK调制解调
说明: 简要阐述BPSK调制解调原理
用MATLAB进行仿真,附上仿真源程序和仿真结果,对结果进行分析。(The principle of BPSK modulation and demodulation is briefly described
Matlab is used for simulation. The simulation source program and simulation results are attached to analyze the results.)
- 2020-12-29 09:49:00下载
- 积分:1
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tensor_toolbox_2.3
tensor_toolbox_2.3 tensor操作 HOSVD分解 (tensor_toolbox_2.3 tensor operator, HOSVD)
- 2010-01-12 12:11:51下载
- 积分:1
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dtzxec
递推最小二乘程序,是进行系统辨识很好的程序(Recursive least-squares procedure, is a good program for system identification)
- 2011-10-12 17:06:14下载
- 积分:1
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kx768
GPS和INS组合导航程序,基于混沌的模拟退火算法,进行逐步线性回归。( GPS and INS navigation program, Chaos-based simulated annealing algorithm, Stepwise linear regression.)
- 2017-04-07 23:01:55下载
- 积分:1
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Exercise2
程序的内容包括信号的DFT及IDFT处理以及数字滤波器的设计。相关的参考资料也包含在其中。(Contents of the program including the signal DFT and IDFT processing and digital filter design. Related reference information is also included.)
- 2013-09-06 08:27:18下载
- 积分:1
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reconize
简单验证码识别
很简单,主要利用了
二值化和编码的方法(Simple identification verification code is very simple, the main advantage of binary coding method and)
- 2010-11-04 21:25:09下载
- 积分:1
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segy
地震数据读取程序,matlab编写,可以实现segy格式的读取(to read Seismic data of segy format ,Matlab。)
- 2012-04-14 09:47:01下载
- 积分:1
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AWGN
AWGN信道的设计与仿真加性高斯白噪声在通信领域中指的是一种各频谱分量服从均匀分布(即白噪声),且幅度服从高斯分布的噪声信号。因其可加性、幅度服从高斯分布且为白噪声的一种而得名。(Design and Simulation of additive white Gaussian noise AWGN channel in the middle of the field of communication is a uniform distribution of each spectral component (ie, white noise), and the amplitude of the noise signal to obey a Gaussian distribution. Because it can increase resistance, the magnitude of Gaussian distribution and is named after a white noise.)
- 2015-02-05 14:52:14下载
- 积分:1
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jintui
说明: 进退法,也成成功--失败法,是最优化方法的一种,用于确定区间(Advance and retreat method, have become a success- failure of law is a kind of optimization method used to determine the range)
- 2010-03-22 12:17:22下载
- 积分:1