搜索资源列表
Estimating_and_interpreting_the_instantaneous_freq
- 时-频分析中,对瞬时频率的估计和解释,其中包括算法和应用.对信号处理来说,是一篇十分有用的文章,希望大家喜欢-time-frequency analysis, the instantaneous frequency estimates and explanations These include algorithms and applications. right signal processing, it is a very useful article, hope you like
adaptivefilter
- 该文件含有自适应滤波的四篇国外经典文章,其中有连续自适应滤波的结构,无迟延子带自适应滤波器构造,FIR滤波器的时频实现等域.是自适应滤波器构造的经典文献-the adaptive filter paper containing the four foreign classic articles, which are continuous adaptive filter structure, without delay subband adaptive filter structure, FIR
toolboxref
- linear time－frequency toolbox 使用说明文档 -linear time-frequency toolbox for use Document
OFDM_channel
- Orthogonal Time–Frequency Signalin Over Doubly Dispersive Channels，IEEE上的文章
MasterThsis
- 关于时频分布的跳频信号参数检测方法研究，短时傅立叶变换、魏格纳变换等-On the time-frequency distribution of the frequency-hopping signal detection parameters, short-time Fourier transform, Wigner-Ville transform, etc.
rayleigh-distribution-matlab
- In wireless communications, fading is deviation of the attenuation that a carrier-modulated telecommunication signal experiences over certain propagation media. The fading may vary with time, geographical position and/or radio frequency, and is often
SVPWM
- 变频驱动主要使用的驱动波形主要有SPWM和SVPWM两种。SPWM原理简单、实现容易,是现在使用最广的一种变频驱动波形。但其有一个致命的弱点是其电源利用率不高（只有86％）、谐波成分大。因此,在新近开发的产品中其应用逐渐被性能优异的SVPWM所取代。SVPWM是一种电压利用率、低谐波成分的变频驱动波形,还有开关次数少、功率管功耗小等特点。同时,SVPWM还能很好的结合矢量控制算法、以最大限度的发挥设备的性能。因此被越来越多的变频设备所采用。-The main use of variable f
ML_Est_Time_Frequency
- 有关OFDM中时域和频域同步的的算法文档，经典IEEE资料-OFDM in the relevant time and frequency domain algorithm to synchronize documents, classic IEEE information
Instantaneousspectralanalysis
- 谱分解快速算法，有助于地震信号的时频分析处理。-Fast Algorithm for spectral decomposition, contribute to seismic signals time-frequency analysis of the treatment.
ml
- ML estimation of time and frequency offset in OFDM systems
VHDL
- 在电子技术中，频率是最基本的参数之一，又与许多电参量的测量方案、测量结果都有十分密切的关系，因此频率的测量就显得更为重要。测量频率的方法有多种,其中电子计数器测量频率具有精度高、使用方便、测量迅速，以及便于实现测量过程自动化等优点，是频率测量的重要手段之一。在本次毕业设计中我们选择使用单片机来制作数字频率计，并在实际制作中采用了直接测频法。利用延时产生的时基门控信号来控制闸门，通过在单位时间内计数器记录下的脉冲个数计算出输入信号的频率，最终送入LCD中显示。这样制作出来的频率计不仅可以满足设计题
jkdde
- 模拟单边带调幅及解调 基本要求： 产生300 ~ 3400Hz的调制信号，画出时域波形及频谱； 产生载波信号，频率自定义，画出时域波形及频谱； 产生加性高斯白噪声，画出时域波形及频谱； 单边调幅，画出叠加噪声后的调制信号和已调信号的波形及频谱； 设计滤波器，画出幅频响应图； 解调，画出解调后的信号时域波形及频谱，并对比分析。 -Simulation of s
icassp99
- 利用时-频方法实现调制信号的识别，并给出正确识别率-CLASSIFICATION OF MODULATION MODES USING TIME-FREQUENCY METHODS
27960038
- an article about Adaptive Time-Frequency Codes for Ultra-wideband
SFBCOFDMSYSTEMS
- An effective technique to improve wireless communication performance is transmit diversity.In this transmitter diversity using a new combination of space-time block codes (STBCs) concatenated with orthogonal frequency division.
frft
- 有两个程序一个是关于frft的源程序，一个是应用frft对线性调频信号进行检测的程序，原理是以变换阶数（不同的分数阶域）为变量对观测信号进行分数阶变换，形成信号能量在时频平面上的二维分布，在此平面上按阈值进行峰值点的二维搜索即可检测线性调频信号并估计其参数。-There are two procedures one on frft the source, one application frft linear FM signal detection process, the principle
b
- 心电信号的实时数字预处理，关于工频与高频干扰的消除-ECG real-time digital preprocessing, frequency and high frequency interference on the Elimination of
time_frequency
- 这是一篇现代通信原理课程的作业报告.题目为几种时频分析方法比较及应用.详细介绍了短时傅里叶变换、小波变换、魏格纳—威利分布和Cohen类时频分布这4种典型时频分析方法,并作了比较-This is a modern communication Principle operating report. Entitled Comparison of several time-frequency analysis and 应用. 详细 Jieshao the short time Fourier tran
82603300time-frequency
- 时频分析简单例程，WV和短时变换程序.代码简便，保证可以应用-Time frequency analysis of simple routines, WV and short-time transform program
time-frequency_WV
- 时频分析代码，其中包括WV分布和短时傅立叶变换。代码简便，保证可以应用-Time frequency analysis of the code, including the WV distribution and the short Fu Liye transform. The code is simple, can guarantee the application