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Description: 简单的用相位相关法来粗估计图像间的平移参数-simple phase correlation method used to estimate the image of rough translation parameters
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Size: 66995 |
Author: 千森 |
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Description: 简单的用相位相关法来粗估计图像间的平移参数-simple phase correlation method used to estimate the image of rough translation parameters
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Size: 66560 |
Author: 千森 |
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Description: 用c语言实现下列的数字信号处理算法
1．离散傅里叶级数合成连续周期信号
2．DIF FFT 测试程序
3．将输入数据的幅度画出图形
4．使用FFT实现快速卷积
5．使用FFT实现快速相关
6．取样混迭演示程序
-language used to achieve the following digital signal processing algorithms 1. Discrete Fourier series synthetic signal two consecutive cycles. DIF FFT three test procedures. The input data rate of 4 paint graphics. Use FFT fast convolution 5. Use FFT fast correlation 6. Aliasing sampling Demonstration Program
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Size: 19456 |
Author: 胡叶 |
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Description: another of my homework......thanks! it is about a correlation in space domain-another of my homework ... thanks! It is about a correlation in space domain
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Size: 1024 |
Author: ling li |
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Description: 仿真程序模拟产生理想点目标的回波，并采用频域相关方法（以便利用FFT）实现脉冲压缩。-Simulation program simulated the ideal point target echo, and the use of frequency-domain correlation method (to take advantage of FFT) to achieve pulse compression.
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Size: 1024 |
Author: 刘博 |
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Description: 针对SHARC系列DSP的卷积、自相关函数、FFT、FIR源代码-SHARC series against the convolution DSP, auto-correlation function, FFT, FIR source code
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Size: 2937856 |
Author: 李帆 |
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Description: 这本书从零开始，详细从数学方面讲解和推导了FFT，DFT，卷积，相关等信号处理原理，有兴趣的朋友-This book from scratch, from mathematics to explain in detail and derived FFT, DFT, convolution, correlation and other signal processing theory, are interested in friends
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Size: 8683520 |
Author: xurongjun |
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Description: sndpeek is just what it sounds (and looks) like:
real-time 3D animated display/playback
can use mic-input or wav/aiff/snd/raw/mat file (with playback)
time-domain waveform
FFT magnitude spectrum
3D waterfall plot
lissajous! (interchannel correlation)
rotatable and scalable display
freeze frame! (for didactic purposes)
real-time spectral feature extraction (centroid, rms, flux, rolloff)
available on MacOS X, Linux, and Windows under GPL
part of the sndtools distribution. -sndpeek is just what it sounds (and looks) like: real-time 3D animated display/playback can use mic-input or wav/aiff/snd/raw/mat file (with playback) time-domain waveform FFT magnitude spectrum 3D waterfall plot lissajous! (interchannel correlation) rotatable and scalable display freeze frame! (for didactic purposes) real-time spectral feature extraction (centroid, rms, flux, rolloff) available on MacOS X, Linux, and Windows under GPL part of the sndtools distribution.
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Size: 282624 |
Author: 尉迟雪凝 |
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Description: 是一些 数字相关法的论文
1.FFT法与数字相关法在相位测量上的比较.pdf
2.采用数字相关法测量相位差.pdf
3.基于FFT谱分析算法的高精度相位差测量方法.pdf
4.基于Hilbert变换的相位测量法与数字相关测相法的比较.pdf
5.基于虚拟仪器技术和互相关原理的相位测量仪.pdf
6.数字化相位差测量算法的研究.pdf
7.相位差的数字化测量研究.pdf
8.虚拟仪器测量周期信号相位的仿真设计.pdf-Are some figures related to law 1.FFT law and the number of papers related to phase measurement in comparison. Pdf2. Using digital correlation method phase. Pdf3. Algorithm based on FFT spectral analysis phase of high-precision measurement method. Pdf4. Based on Hilbert transform phase measurement method and the number of relevant comparison test phase. pdf5. Based on Virtual Instrument Technology and inter-related principles of the phase measurement. pdf6. digitized phase measurement algorithm. pdf7. phase of digital measurement. pdf8 . virtual instrument measurement of periodic signal design phase of the simulation. pdf
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Size: 2929664 |
Author: 杨志杰 |
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Description: 本文件包含三个小程序，分别为用fft实现功率谱估计、实现快速卷积和快速相关。对了解fft在c中的编程很有帮助-This document contains three procedures were used to achieve power spectrum estimation fft, fast convolution and fast correlation. Fft to know programming in c in the helpful
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Size: 13312 |
Author: 魏玮 |
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Description: 很全的数字信号C语言资料，包括：数字信号的产生，数字信号处理（FFT计算等），快速离散正交变换，快速卷积与相关，数字滤波器的时域和频域相应，IIR数字滤波器的设计，FIR数字滤波器的设计，以及谱估计，数字图像处理，人工神经网络方面的内容-The digital signal is full C language, including: the emergence of digital signal, digital signal processing (FFT calculation, etc.), fast discrete orthogonal transform, fast convolution and correlation, digital filter in time domain and corresponding frequency domain, IIR digital filter design, FIR digital filter design, as well as the spectral estimation, digital image processing, artificial neural network aspects
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Size: 6790144 |
Author: 李元柳 |
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Description: CONVOLUTION AND INTER CORRELATION AND FFT OF SOME SIGNIALS : port, tri, sinc -CONVOLUTION AND INTER CORRELATION AND FFT OF SOME SIGNIALS : port, tri, sinc ...
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Size: 362496 |
Author: wajdi |
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Description: Presently FFT usage in GPS receivers has been a
topic of extensive study and many improved FFT-based
acquisition methods with averaging correlation
technique also have emerged. Although averaging
arithmetic can reduce the instant processing points of
FFT/IFFT, their noise performance is not promising. In
this paper a novel compress-sampling algorithm for
FFT-base GPS signal acquisition method is proposed.
It not only diminishes the size of FFT/IFFT core but
also enhances the noise immunity of receiver with its
“redundancy” structure. Simulation results of Matlab
testify that the computational complexity of the novel
algorithm has been efficiently suppressed to only
0.93 over the 2D search method in time domain. At
the same time the lower amplitude threshold obtained
from the novel method gets a lower false alarm
probability comparing with the direct DFT algorithm
with no compression. The noise immunity is enhanced-Presently FFT usage in GPS receivers has been a
topic of extensive study and many improved FFT-based
acquisition methods with averaging correlation
technique also have emerged. Although averaging
arithmetic can reduce the instant processing points of
FFT/IFFT, their noise performance is not promising. In
this paper a novel compress-sampling algorithm for
FFT-base GPS signal acquisition method is proposed.
It not only diminishes the size of FFT/IFFT core but
also enhances the noise immunity of receiver with its
“redundancy” structure. Simulation results of Matlab
testify that the computational complexity of the novel
algorithm has been efficiently suppressed to only
0.93 over the 2D search method in time domain. At
the same time the lower amplitude threshold obtained
from the novel method gets a lower false alarm
probability comparing with the direct DFT algorithm
with no compression. The noise immunity is enhanced
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Size: 254976 |
Author: zohreh |
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Description: Presently FFT usage in GPS receivers has been a
topic of extensive study and many improved FFT-based
acquisition methods with averaging correlation
technique also have emerged. Although averaging
arithmetic can reduce the instant processing points of
FFT/IFFT, their noise performance is not promising. In
this paper a novel compress-sampling algorithm for
FFT-base GPS signal acquisition method is proposed.
It not only diminishes the size of FFT/IFFT core but
also enhances the noise immunity of receiver with its
“redundancy” structure. Simulation results of Matlab
testify that the computational complexity of the novel
algorithm has been efficiently suppressed to only
0.93 over the 2D search method in time domain. At
the same time the lower amplitude threshold obtained
from the novel method gets a lower false alarm
probability comparing with the direct DFT algorithm
with no compression. The noise immunity is enhanced-Presently FFT usage in GPS receivers has been a
topic of extensive study and many improved FFT-based
acquisition methods with averaging correlation
technique also have emerged. Although averaging
arithmetic can reduce the instant processing points of
FFT/IFFT, their noise performance is not promising. In
this paper a novel compress-sampling algorithm for
FFT-base GPS signal acquisition method is proposed.
It not only diminishes the size of FFT/IFFT core but
also enhances the noise immunity of receiver with its
“redundancy” structure. Simulation results of Matlab
testify that the computational complexity of the novel
algorithm has been efficiently suppressed to only
0.93 over the 2D search method in time domain. At
the same time the lower amplitude threshold obtained
from the novel method gets a lower false alarm
probability comparing with the direct DFT algorithm
with no compression. The noise immunity is enhanced
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Size: 87040 |
Author: zohreh |
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Description: 基于OpenCV和FFTW实现的相位相关图像匹配程序，需要OpenCV和FFTW库文件的支持。本程序并没有用到OpenCV中的DFT，而是用了FFTW中的FFT，所以速度要快很多。-Based on OpenCV and the FFTW implementation phase correlation image matching procedures, require OpenCV and FFTW library files. This procedure does not use OpenCV in the DFT, but with the FFTW in the FFT, so much faster.
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Size: 1560576 |
Author: 瘦猪呆兔 |
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Description: 在CCS环境下，调用TI的DSPLIB FFT、IFFT函数的例子。
定义了正弦信号和方波信号，可以帮助DSP初学者理解DSPLIB FFT相关函数的调用。-In the CCS environment, calling TI DSPLIB FFT, IFFT function example. Defines a sinusoidal signal and the square wave signal that can help beginners understand DSPLIB FFT DSP correlation function call.
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Size: 48128 |
Author: shaunna |
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Description: Efficient subpixel image registration by crosscorrelation. This code gives the same precision as the FFT upsampled cross correlation in a small fraction of the computation time and with reduced memory requirements
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Size: 3072 |
Author: hamraz |
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Description: 对脑电信号进行滤波、快速傅里叶变换（FFT）及自相关、互相关计算，以观察每一通道脑电的相关性-On EEG filtering, fast Fourier transform (FFT) and autocorrelation, cross correlation calculation, in order to observe the correlation of each channel EEG
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Size: 2048 |
Author: 王荣 |
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Description: 由已知表达式画出原始波形和它的功率谱，并编制一个互相关函数程序，要求提取特定频率的成分，画出变换过程中的波形和功率谱。-Drawn from the known expression of the original waveform and its power spectrum, and the preparation of a cross-correlation function procedure that requires the extraction of specific frequency components, draw in the process of transformation and power spectrum waveforms.
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Size: 2048 |
Author: 亲爱的米娅 |
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Description: 结合积分图及快速傅里叶计算归一化互相关，减少计算时间(Combining Integral Graph and Fast Fourier Method to Calculate Cross-correlation)
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Size: 1024 |
Author: 齐清 |
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