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matlab
- 用matlab写的一个验证卷积定理的程序，即时域的卷积对应着频域的乘积。-using Matlab write a convolution theorem certification procedures, the immediate domain convolution corresponds to the frequency domain product.
matlab.frequency
- 产生中频和高频信号及其相应滤波器，并对其进行滤波和分析
信道模型为带多普勒频移的瑞利衰落信道
- 信道模型为带多普勒频移的瑞利衰落信道，关于线性插值的MATLAB仿真程序，并解调。,Channel model with Doppler frequency shift for the Rayleigh fading channel, on the linear interpolation of the MATLAB simulation procedures, and demodulator.
经典载波跟踪环costas环simulink建模仿真
- 经典载波跟踪环costas环simulink建模仿真，采用QPSK调制，包含上下变频以及三种不同鉴相方式。,Classic costas loop carrier tracking loop simulink modeling and simulation, using QPSK modulation, including the upper and lower frequency, as well as phase three different ways.
FFT-matlab FT在matlab中的实践分析
- FFT在matlab中的实践分析，例子为求一个正弦波的频谱图、均方根谱、功率谱、对数谱和进行IFFT的变换-FFT analysis of the practice in matlab, examples for the sake of a sine wave of frequency spectrum, the rms spectrum, power spectrum, and the IFFT on the number of spectral transformation
matlab_n.几个Matlab编程示例
- 几个Matlab编程示例，其中包括：单位抽样序列、复正弦序列、离散系统的差分方程、冲激响应和卷积分析、离散系统的频率响应分析和零、极点分布、基于Matlab的数字滤波器设计和FFT算法的应用等。,Some Matlab programming examples, including: random sequence of units, rehabilitation Sine sequences, discrete-time systems of differential equations, i
用matlab gui画信号的频谱图和时域图形
- 用matlab gui画信号的频谱图和时域图形,再画出语谱图，模拟电话-Picture signal with matlab gui frequency spectrum and time domain graph, then draw the language spectrum, analog telephone
matlab 步进频率连续波
- 步进频率连续波，一维距离像，速度补偿，包括说明，波形图，源代码-Step frequency continuous wave, as one-dimensional distance, speed compensation, including a descr iption, waveform, source code
butterworth.rar
- 截止频率在0.3Hz的巴特沃斯低通滤波器，采用二阶级联进行编程。,In the 0.3Hz cutoff frequency of Butterworth low-pass filter, used to program the second class together.
filter_all.rar
- 数字滤波器的设计及性能比较 用三种方法设计FIR滤波器：窗口法、最大最小误差法、频率采样法；用两种方法设计IIR滤波器：冲激响应不变法、双线性变换法。很全的matlab滤波器程序！, Digital filter design and performance comparison of three methods to use FIR filter design: the window method, the largest minimum error method, freq
ray_chan_two.rar
- 这是一个频率选择性瑞利衰落信道的模型，程序建模为两径。,This is a frequency-selective Rayleigh fading channel model, the program is modeled as two tracks.
fft.rar
- FFT算法的基本原理是把长序列的DFT逐次分解为较短序列的DFT。按照抽取方式的不同可分为DIT-FFT（按时间抽取）和DIF-FFT（按频率抽取）算法。按照蝶形运算的构成不同可分为基2、基4、基8以及任意因子（2n,n为大于1的整数），基2、基4算法较为常用。,FFT algorithm is the basic principle of DFT successive long sequence is broken down into shorter sequences of DFT. In
无线信道信号的混叠
- (1) 在某些无线信道中，多普勒频移会引起无线信道输出信号的混叠。请描述产生混叠的各种原因； (2) 无线信道中的多普勒谱有一种经典谱(classic spectrum)，请解释产生这种谱形状的机理； (3) 请用Simulink工具编写代码(S-Function方式)，产生一单径瑞利信道，其多普勒谱为经典谱，其中移动速率为120km/h。并请回答：证明自己用计算机产生的经典谱是正确的可能方法。 ,(1) in certain wireless channel, the Doppler f
frequency_hopped.rar
- 一个用matlab写的跳频通信系统仿真，信道采用的是高斯白噪声信道,a frequency-hopped communication system, simulated by matlab
TFD-chirplet.rar
- matlab 压缩包文件,基于时频分析的isar回波处理历程,基于时频分析的多分量现形调频信号处理,matlab compressed file, based on the time-frequency analysis of the ISAR echo processing course, based on the time-frequency analysis of multi-component FM signal processing edition
ECGyuchuli
- ECG心电信号预处理，高通滤波器，滤除呼吸基线漂移，带阻滤波器，滤除工频干扰，并两组滤波器的处理速度进行比较-ECG signal preprocessing, high-pass filter, filter respiratory baseline drift, band stop filter, filter frequency interference, and two filters to compare the processing speed
corre_spectrum
- 本程序能够计算两个信号的频域相干函数和两个信号的互功率谱。-This procedure is able to calculate the two signals in the frequency domain coherence function and the two signals cross-power spectrum.
Time-Frequence
- 该程序是盲源分离算法中时域—频域分离算法，该算法应用范围广泛。-The procedure is blind source separation algorithm in time domain- the frequency domain separation algorithm, which a wide range of applications.
FFT
- 脑波FFT变换 调用格式见m文件头部说明（下边也复制了一份） 有配套.DLL.h.lib.ctf文件，可以在C或C++环境中调用 ------------------------------------ 保存为FFT.m文件 输入参数： N：进行FFT变换的点数（要求是2的N次幂）； fs：信号的采样频率（frequency of simpling） sig：进行FFT变换的数组（一维）。 输出参数： f_sig:变换后的信号（一维数组） E_de
HW2
- In mathematics, the discrete-time Fourier transform (DTFT) is one of the specific forms of Fourier analysis. As such, it transforms one function into another, which is called the frequency domain representation, or simply the "DTFT", of the original