搜索资源列表
AnalogVoiceSignal
- 观测实时模拟信号（语音）的频谱 用音频设备采集一段语音，将语音存为.wav格式。对wav文件作分段傅里叶变换分析。语音是分音节的，应把它分段分析，而且实际运用中的数字信号处理的FFT的点数是有限的，一般只能达到千点。用傅里叶反变换IFFT，从频域恢复信号。画出频谱图和语音波形图。 -Observing real-time analog signal (voice) of the spectrum collected with the audio devices section of
SignalSpectrumAnalysis
- 信号频谱分析 1. 观测已知方波信号、正弦波信号的频谱 分析频率为4KHz、8KHz的占空比为50 的方波信号、正弦波信号的频谱。记录所得频谱图。 2. 观测实时模拟信号（语音）的频谱 用音频设备采集一段语音，将语音存为.wav格式。对wav文件作分段傅里叶变换分析。语音是分音节的，应把它分段分析，而且实际运用中的数字信号处理的FFT的点数是有限的，一般只能达到千点。用傅里叶反变换IFFT，从频域恢复信号。画出频谱图和语音波形图-Signal spectrum analysis
FFT_Implementation_in_FPGA
- This book is ERICSSON documentation "FFT, REALIZATION AND IMPLEMENTATION IN FPGA". Book includes some theoretical information about FFT Radix-2 and Radix-4, and also VHDL and Matlab code.
noisefiltered
- 产生随机噪声加人信号，并对产生的噪声进行滤波和酒信号进行FFT-Generate random noise added to the signal, and noise generated by the signal filtering and FFT wine
Short_time_FFT_with_octave_smooth
- 短时傅里叶变换源程序，matlab环境，可用于雷达，超声波信号分析以及DSP的学习-short time fft codes
16_points_DIT_FFT_MATLAB
- 基于时域抽取的1024点FFT函数。适合用于演示算法计算过程，既教学。可以扩展成2次幂点数的FFT计算。开发环境MATLAB。-1024-point Decimation-in-time FFT function. Algorithm suitable for presentation process, both the teaching. Can be expanded into a power of two points of the FFT calculation. Development
aliasing_for_time_domain_signal.m
- This package contains scr ipt to calculate aliasing for given time domain signal. scr ipt to plot in time domain the function: x(t)=A0cos(2pif0t)+A1cos(2pif1t) where fs1=300 Hz and fs2=150 Hz (sampling rate) A0 and A1 are amplitude s signal (a
ZHAO_OFDM
- 这个程序除了接收机同步、信道编码没有加入外，基本上反映了一个OFDM系统的特性： 1. qpsk/16qam/64qam映射、解映射 2. OFDM调制解调（循环前缀，FFT等） 3. 非整数采样时刻多径时延的多径信道 4. Rayleigh或者Rician多径信道 5. 信道的连续时变（非block fading） 6. 线性插值信道估计 7. FFT变换域插值信道估计-In addition to this program receiver synchroniza
OFDMcode
- OFDM系统仿真，包含了发射、信道估计、接受等完整的OFDM系统仿真-his 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 recorde
JDCHE_and_JDPP_for_TD_SCDMA
- TD-SCDMA系统联合检测中的信道估计、信道估计后处理、信道估计串行干扰消除后处理算法的源代码。其中，信道估计采用频域快速FFT法以减少运算量；后处理采用激活窗检测法，只保留激活用户的多径信息，其余置0，以达到降低干扰及噪声的目的；串行干扰消除可以消除多小区信道估计的干扰，以得到本小区的纯净信道估计结果。-TD-SCDMA system, joint detection of channel estimation, channel estimation and post-processing,
apfft
- Matlab实现的全相位频谱分析，可以自行设定点数和输入序列。结果包括频谱图和与普通fft的对比-Matlab to achieve all-phase spectral analysis, can draw up a point and input sequence. The results include the spectral figure and the comparison with ordinary fft
codegen_digitizg
- 用于将GPS传送的信号以一定的采样速率离散化，方便以后进行FFT运算-GPS signals used to transmit a certain discrete sampling rate, FFT operation to facilitate a later
FFT
- Implementing Fast Fourier transform using the parallel Matlab toolbox
ditfft
- Matlab关于FFT算法的编程及原理详细讲解！-Matlab programming on the FFT algorithm and principle explained in detail!
fftcode
- implementation of fft on the matlab simulink
FFT
- 一个用于MATLAB中实现的FFT功能的码序列。很有用，有帮助-One for the realization of the FFT function of MATLAB, the code sequence. Very useful, helpful
wav_waterfall_fft
- 对wav file 进行 waterfall fft处理-wav file waterfall FFT
FFT
- FFT的使用，说明了在MATLAB中FFT函数的使用方法，-The use of FFT, shows the FFT function in MATLAB to use,
FFT
- 实现了matlab的二维离散傅里叶变换. -Achieve two-dimensional discrete Fourier transform matlab.
fftlphp
- 此程序是1是对图像进行fft变换并显示频谱图，2是对图像进行低通和高通滤波并显示-This program is an fft transform is image and display spectrum, 2 is the image low-pass and high pass filtering and display