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fft
- 一个快速傅里叶变换的实例。通过快速傅里叶变换实现信号的频率幅值等信息。-Examples of a fast Fourier transform. Fast Fourier transform by the frequency of the signal amplitude and other information.
eg-fft
- fft1.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-fft1. Using Matlab generated sine wave, rectangular wave, as well as the white noise signal, and displa
File
- 一种应用于多带正交频分复用超宽带的IFFT/FFT处理器,不错哦,推荐大家-A kind used in multi-band orthogonal frequency division multiplexing UWB IFFT/FFT processor, yes Oh, recommended we look at
energy-leakage--dual-tree
- 首先根据高斯白噪声频率充满整个频带的特性,通过双树复小波包变换对高斯白噪声进行分解,利用频带能量泄漏的定量分析方法,验证了双树复小波包变换具有较低的频带能量泄漏特性;其次利用双树复小波包变换逐层分解信号,对每层分解所得分量求其FFT谱的峭度,得到基于双树复小波包变换的谱峭度图,根据图中峭度最大的原则,可以自动准确的选择信号分解最佳层数和最佳分量;最后将基于双树复小波包变换的谱峭度图的故障诊断方法应用于实际工程中,对齿轮故障振动信号进行分析,选择最佳分解层数和分量后利用希尔伯特包络解调,有效准确地
FWu_PGNET07
- Time and Frequency Synchronization Techniques for OFDM Systems operating in Gaussian and Fading Channels: A Tutorial The aim of this paper is to survey and compare previous methods for Data-aided timing and frequency synchronization of O
DSP
- 求出的傅里叶变换。画出其幅频特性和相频特性曲线(提示:用1024点FFT近似) -Seek out the Fourier transform. Draw its amplitude frequency characteristic and phase frequency characteristic curve (hint: use 1024 point FFT approximation)