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BackProjection
- SAR雷达BP算法 his function performs a basic Backprojection operation. The following fields need to be populated: data.Nfft:Size of the FFT to form the range profile data.deltaF:Step size of frequency data (Hz) data.minF:Vector containing
pinpufenxiyi
- 这是一个含有GUI界面的数字频谱分析仪。该.m文件实现了FFT和滤波器两种方法对正弦信号，线性调频信号的产生及处理。-The. M file implements two methods FFT and filters sinusoidal signal generation and processing chirp signal. And generates a GUI interface, interaction can be completed, and the process param
set allows for an OFDM transmission
- This simulation scr ipt set allows for an OFDM transmission to be simulated. Imagetx.m generates the OFDM signal, saving it as a windows WAV file. This allows the OFDM signal to be played out a sound card and recorded back. Imagerx.m decodes the
cPPfft-time-test
- 在代码里设置M,N。N是2的M次方。计算长度为N的fft，以及他所消耗的时间-to compute a signal length N`s fft
GLO_acq
- GLONASS频分多址信号的捕获maltab仿真，文件包含离散化函数，捕获主函数，m序列生成函数，采用的是FFT捕获-Capture maltab simulation of GLONASS frequency division multiple access signals, file contains the discrete function, capture the main function, generating function of m sequences, using the
bin_count
- i m sending hdl code of dm using verilog and vhdl with all blocks contain fft,ifft,scrambler,transmitter,receiver.-i m sending hdl code of ofdm using verilog and vhdl with all blocks contain fft,ifft,scrambler,transmitter,receiver.
conv
- For given A/B returns conv(A,B) (non-circular). Subroutine can automatically choose between three implementations: straightforward O(M*N) formula for very small N (or M), overlap-add algorithm for cases where max(M,N) is significantly large
fft_myexample
- 自己写的fft程序。解释全面，与原始信号的幅值和频率都能一一对应上（频率=0时，计幅值要除以2)。对初学fft帮助很大。-myfft.m. It is suitable for learner
source-builder_5wxoe4
- Upon graduation design written MATLAB program to achieve the iXigUy image feature extraction, and do feature different light, different perspectives match under optimal JGPxzKQ difference calculation method, there are application programming source c
source-builder_70k6on
- Upon graduation design written MATLAB program to achieve the srpgeB image feature extraction, and do feature different light, different perspectives match under optimal wTmANxo difference calculation method, there are application programming source c
Sa
- function [Sx,f,alpha] = Sa(s,fs,M,N,read_f,del_f) 计算信号的循环谱 [Sx,f,alpha] = Sa(s,fs,M,N,read_f,del_f) 输入： s 序列 fs 采用频率 M 滑动频率窗长 N fft计算点数 read_f 可视频率（一般为载频的整数倍） del_f 可视频率间隔 输出： Sx 信号的循环谱 f 频率轴 alpha 循环频率轴-Cyclos
muipan
- ofdm系统仿真 含16qam调制 fft 加窗 加cp等模块，已经调试成功.内含m文件，可直接运行，合成孔径雷达（SAR)目标成像仿真。- ofdm system simulation including 16qam modulation fft windowing modules plus cp, Has been successful debugging. M contains files can be directly run, Synthetic Aperture Radar (SAR
beijai_v23
- 基于kaiser窗的双谱线插值FFT谐波分析，可以提取一幅图中想要的目标，已经调试成功.内含m文件，可直接运行。- Dual-line interpolation FFT harmonic analysis kaiser windows, Target can be extracted in a picture you want, Has been successful debugging. M contains files can be directly run.
CS1
- python notebook file compressed sensing using FFT and DCT. where, Both both A and 5 keys are presssed and # sampling rate Fs = 40e3 duration = 1./8 N_samps = int(np.floor(duration*Fs)) # Number of compressed basis functions # i.e.
cxy_snr
- CXY 可用来验证： 1、不同FFT点数的结果*2/M 真实幅度（电压值）（第一二行图） 2、验证计算Ps,Pn及SNR的方法，通过构造加AWG噪声的信号来印证（第二三行图） 3、对比N在整周波和非整周波情况下的通过SNR观察频谱泄露效应（第三行图）- CXY can be used to verify: 1, the result of different FFT points* 2/M true amplitude (voltage value) (f
并行计算MPI程序设计
- FFT，即为快速傅氏变换，是离散傅氏变换的快速算法，它是根据离散傅氏变换的奇、偶、虚、实等特性，对离散傅立叶变换的算法进行改进获得的。它对傅氏变换的理论并没有新的发现，但是对于在计算机系统或者说数字系统中应用离散傅立叶变换，可以说是进了一大步。(FFT, that is fast Fourier transform, is a fast algorithm for discrete Fourier transform. It is based on the odd, even, imaginar
image
- 调用自定义函数解决题目： 1.读取自然图像、生成合成图像、高相关图像、高去相关图像，完成压缩 2.得到傅里叶变换后的图像 3.fft中心变换\walsh变换，进行两种变换的对比 4.得到傅里叶变换后的图像和傅里叶变换需要的时间，显示变换后的图像，显示傅里叶变换时间随图像像素的变化 5.显示不同阶数butterworth高通滤波和低通滤波滤波器的传递函数和处理后的图像 6.调用butterworthw.m，显示原图像、原图像频谱、低通滤波、高通滤波的传递函数，以及滤波器处理后的图像 7.拉普拉斯高
两铰抛物线拱的在初始条件下
- % 本程序为第八章的第二个算例，采用平面梁单元计算两铰抛物线拱的在初始条件下 % 自由振动，并对时程曲线结果进行FFT变换，求得的频率可与exam8_1.m的结果进行 % 比较，以验证本程序的可靠性(This procedure for the eighth chapter of the second examples, calculation of plane beam element with two hinged parabolic arch free vibration in t
伪随机相位编码脉冲雷达的信号处理
- 伪随机相位编码脉冲雷达的信号处理。设码频 02，单位为 MHz，伪码周期内码长为 127，占空比 10%，雷达载频为 10GHz，输入噪声为高斯白噪声。目标模拟分单目标和双目标两种情况，目标回波输入信噪比可变（-35dB～10dB），目标速度可变（0～1000m/s），目标幅度可变（1～100），目标距离可变（0～10000m），相干积累总时宽不大于 10ms。单目标时，给出回波视频表达式；脉压和 FFT后的表达式；仿真 m序列的双值电平循环自相关函数，给出脉压后和 FFT后的输出图形；
线性卷积的计算
- 1.编制一个计算两个序列线性卷积的程序，计算y(i)=x(m)*h(n)，分别绘制x(m)和h(n)，以及线性卷积结果y(i)的图形，使用matlab自带的conv函数来验证结果。 2.使用matlab自带的FFT和iFFT程序，实现线性卷积的快速计算，并对计算结果进行绘制。(1. Make a program to calculate the linear convolution of two sequences, calculate y (I) = x (m) * H (n), draw t