Search - FFT IFFT MATLAB

[matlab] f_ifft

Description: OFDM中的关于快速傅立叶变换的个人设计的MATLAB的算法，比较经典的！-OFDM on the Fast Fourier Transform personal design MATLAB algorithm, more classic!
Platform: | Size: 20480 | Author: yeyue | Hits:

[Communication-Mobile] CE_OFDM

Description: 关于信道估计的程序,用MATLAB实现,包括导频的插入提取,FFT/IFFT ,循环前缀的加入提取-on channel estimation procedures, using MATLAB, including Pilot insertion extraction, FFT/IFFT, cyclic prefix to join the extraction, etc.
Platform: | Size: 549888 | Author: 田永毅 | Hits:

[DSP program] ligl-fft

Description: 基于tms320vc55*系列DSP常用算法，包括： 1. Experiment 7A - Radix-2 Complex FFT in C 2. Experiment 7B - Radix-2 Complex FFT in C55x Assembly Language 3. Experiment 7C - Radix-2 Complex FFT and IFFT 4. Experiment 7C - Fast Convolution 5. matlab 源码- Based on tms320vc55* series DSP commonly used algorithm, including: 1. Experiment 7A- Radix-2 Complex FFT in C 2. Experiment 7B- Radix-2 Complex FFT in C55x Assembly Language 3. Experiment 7C- Radix-2 Complex FFT and IFFT 4. Experiment 7C- Fast Convolution 5. matlab source code
Platform: | Size: 78848 | Author: | Hits:

[matlab] AOFDMmatlabsimulation

Description: AOFDM系统matlab仿真程序，包括映射、fft/ifft，加去循环前缀，信道估计等关键模块-AOFDM system Matlab simulation program, including mapping, fft/ifft. to increase cyclic prefix, channel estimation and other key modules
Platform: | Size: 5120 | Author: zj | Hits:

[Special Effects] lvboqqqqqqq

Description: 于傅里叶变换的图像加密技术研究具体是将一幅图像用 fft 变换到频域在频域中进行加密我考虑的是通过随机相位来加密的方法，请问用matlab怎样实现加密后在通过 ifft 得到加密后的图象 -Fourier transform in the image encryption technology to study the details of an image is to use fft transformed to the frequency domain in the frequency domain I consider encryption is through random-phase approach to encryption, Will the use of Matlab how to achieve the adoption of encryption ifft be encrypted images
Platform: | Size: 1024 | Author: 李建成 | Hits:

[Other] matlab_fft

Description: matlab实现fft,以及ifft算法,包含蝶型运算等文件-Matlab achieve fft and ifft algorithm, includes a butterfly computation, and other documents
Platform: | Size: 2048 | Author: xt | Hits:

[assembly language] IEEE80211a

Description: 802.11a OFDM MATLAB仿真代码!(推荐)非常详细，有接受收发，CP,FFT.IFFT.多径影响等。
Platform: | Size: 200704 | Author: yang | Hits:

[Special Effects] IP_FFT_matlab

Description: 加深对图像变换的理解。计算图像的傅立叶变换J，进行频谱搬移并显示；计算J的逆变换IFFT，并显示。-Deepen the understanding of the image transform. Fourier transform calculation of image J, the spectrum to move and display calculated J inverse transform IFFT, and displayed.
Platform: | Size: 28672 | Author: Ashtray | Hits:

[matlab] signal_fft_spectrum

Description: 用matlab产生不同的波型，对其进行FFT 功率谱，对数谱然后用IFFT进行反变换-Using matlab produce different wave type, its FFT power spectrum, the spectrum and then use the IFFT to inverse transform
Platform: | Size: 1024 | Author: 方杰平 | Hits:

[Algorithm] myifft

Description: 自己编写的matlab中的逆FFT变换，可以用于交流学习-I have written in matlab inverse FFT transform, can be used for the exchange of learning
Platform: | Size: 1024 | Author: | Hits:

[Other] LMS_AR

Description: 这是一个IFFT数字信号处理程序的MATLAB仿真代码，希望可以为新手提供参考-This is a digital signal processing IFFT procedure MATLAB simulation code, hope that we can provide a reference for the novice
Platform: | Size: 1024 | Author: | Hits:

[Special Effects] chengxu3

Description: 用Matlab产生正弦波,矩形波,以及白噪声信号，并显示各自时域波形图 2．进行FFT变换，显示各自频谱图，其中采样率，频率、数据长度自选 3．做出上述三种信号的均方根图谱,功率图谱,以及对数均方根图谱 4．用IFFT傅立叶反变换恢复信号，并显示恢复的正弦信号时域波形图 -Using Matlab generated sine wave, rectangular wave, as well as the white noise signal, and display their respective time-domain waveform of Figure 2. FFT to transform, showing their frequency spectrum, including sampling rate, frequency, data length of 3-on-demand. Make the rms signal of the three maps, power maps, as well as the number of root-mean-square map 4. Fourier Transform IFFT with the restoration of signals, and displays the sinusoidal signal the resumption of time-domain waveform
Platform: | Size: 1024 | Author: river | Hits:

[Communication] ofdm

Description: ofdm 仿真的程序，包括参数定义，fft，ifft，调制解调等源码，很好用啊！-OFDM simulation procedures, including the definition of parameters, fft, ifft, modulation and demodulation, such as source code, with very good ah!
Platform: | Size: 4096 | Author: zhangweijin | Hits:

[Software Engineering] ofdm

Description: ofdm ifft/fft仿真，在真实环境下的信号流程-ofdm
Platform: | Size: 2048 | Author: zhang | Hits:

[matlab] FFT_exmaples_Matlab

Description: FFT/IFFT algorithm applications in Matlab
Platform: | Size: 2048 | Author: pitchblue | Hits:

[GPS develop] paper04

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
Platform: | Size: 254976 | Author: zohreh | Hits:

[matlab] fft

Description: fft处理及频谱图绘制、均方根谱图、功率谱、IFFT谱图等matlab的绘制程序-fft processing and display
Platform: | Size: 1024 | Author: guan | Hits:

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