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信号的FFT分析
利用FFT实现两序列的线性卷积。,FFT implementation using the linear convolution of two sequences
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基于MATLAB平台实现利用FFT计算线性卷积-MATLAB-based platform for the realization of the linear convolution calculation using FFT
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印度GURUNANAK ENGINEERING COLLEGE数字信号处理实验室的DSP+c+Matlab联合编程手册-DIGITAL SIGNAL PROCESSING LAB (IV-I SEM)
INDEX
1. Architecture of DSP chips-TMS 320C 6713 DSP Processor
2. Linear convolution
3. Circular convolution
4. FIR Filter (LP/HP) Using Wi
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利用matlab进行FFT和IFFT计算线性卷积,并得到其曲线-Using matlab FFT and IFFT calculations for linear convolution, and get the curve
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ifft和fft实现线性卷积,并与matlab中默认内置的conv()函数的结果对照,验证其正确性-using ifft and fft to accomplish linear conviction
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用matlab编写的线性卷积和FFT,与matlab自带函数功能一样。每行代码都有注释,便于拓扑和扩展-Linear convolution and FFT using matlab matlab own function function. Each line of code is well commented, easy topology and extended
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给定两个序列 x(n)=[2,1,1,2],h(n)=[1,-1,-1,1,], 。首先直接在时域计算两者的线性卷积;然后用FFT快速计算二者的线性卷积,验证结果。-Given two sequences, a.First directly evaluated both linear convolution in time domain Then using FFT fast calculation of the two linear convolution, the verification
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1.对于两个序列:x(n)=n R16(n),h(n)=R8(n)
(1)在同一图形窗口中绘出两序列的时域图形。
(2)利用FFT编程计算两序列的线性卷积,绘出的时域图形。
-1. For two sequences: x (n) = n R16 (n), h (n) = R8 (n)
(1) draw the two sequences in the same time-domain graphics window graphics.
(2) calculation of
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探索卷积的不同的实现方法,而非用matlab中的卷积命令(explore how this can be calculated efficiently using the FFT. This entails understanding the
difference between linear and circular convolution. We will explore using the FFT and compare it with a conventional
direct im
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