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Butterworth
- 用最少阶数设计一个数字滤波器，要求滤除频率在2000~2300Hz的信号，衰减比例不得小于40dB，1700Hz以下和2700Hz以上的信号要保留，最大衰减不能超过1dB，采样率为8000Hz。(The design of a digital filter with a minimum order requirements to filter the frequency in the 2000~2300Hz signal attenuation ratio shall not be less t
xfyyk
- Will enter A law PCM codec sine signal sampling, PCM coding, the output of the encoder block sequence,
lavrlct-mainly
- 本程序为构造小波信号,主要采用上采样的算法实现,,不错的(This procedure for constructing the wavelet signal, mainly adopts the sampling algorithm, and good)
GMM-Code
- A two-stage mechanism of ECG classification using Gaussian mixture model(An automatic classifier for electrocardiogram (ECG) based cardiac abnormality detection using Gaussian mixture model (GMM) is presented here. In first stage, preprocessing tha
xhe-and
- 设信号 ,用 对x(t)采样得x(n),是否会发生频谱混叠,(A signal, and using the sampling to x x (t) (n), will happen spectrum aliasing,)
Boptinuous
- 连续信号的采样与重构,主要说明信号采样与重构程序(Continuous signal sampling and reconstruction, mainly explain the procedure of signal sampling and reconstruction)
Example_2833x_FIR
- FIR(Finite Impulse Response)滤波器：有限长单位冲激响应滤波器，又称为非递归型滤波器，是数字信号处理系统中最基本的元件，它可以在保证任意幅频特性的同时具有严格的线性相频特性，同时其单位抽样响应是有限长的，因而滤波器是稳定的系统。因此，FIR滤波器在通信、图像处理、模式识别等领域都有着广泛的应用。(FIR (Finite Impulse Response) Filter: Finite-length unit Impulse response filter, also k
gt233
- Least-squares regression analysis algorithm, Sampling from a priori probability, calculate the weight, GSM is GMSK modulation signal generation.
vp157
- Multirate signal processing, Sampling from a priori probability, calculate the weight, Is a practical method of path planning.
DTMF
- 检测8K采样频率，16位PCM码流的DTMF信号 标准的DTMF双频的检测还是可以的 误差检测可能不是很精确......以后再优化 压缩包里有C源码，build出来的elf文件，原始PCM码流(Detect 8K sampling frequency, 16 bit PCM bitstream DTMF signal Standard DTMF dual frequency detection is fine Error detection may not be accurate...
ning_v28
- Acquisition and Processing of the speech signal, digital signal processing class-based, A fluid manifold learning algorithm (good use), Sampling from a priori probability, calculate the weight.
sn546
- Including compression ratio, image restoration computing uptime and peak signal to noise ratio, Sampling from a priori probability, calculate the weight, The performance of the program has reached a high level.
filter
- 利用窗函数法设计FIR滤波器，绘制出滤波器的特性图。利用所设计的滤波器对多个频带叠加的正弦信号进行处理，对比滤波前后的信号时域和频域图，验证滤波器的效果。最后录制或下载一段语音信号，对其进行采样和加噪，然后用设计滤波器对加噪后信号进行滤波，绘制出信号的时域波形和频谱，分别计算均值、方差、自相关函数、功率谱，并对滤波前后的信号进行对比。(Using window function design FIR filter, draw the filter characteristic diagram.
Square
- 编写MATLAB程序，讨论在 ??_0=5×〖10〗^(?5)的加性高斯白噪声环境中，利用匹配滤波器检测幅度为2，宽度为1ms的方波信号的情况(考虑取样时间为Ts=0.1ms)，测量匹配滤波器输入信号中心处与输出信号最佳取样处的SNR，绘出信号波形。(Write a MATLAB program, "10" discussed in the _0=5 * ^ (- 5) and Gauss white noise environment, using the matching
envelope
- 对数据信号进行希尔伯特包络 低通滤波包络（需要输入信号数据与采样频率）。(The Hilbert envelope low-pass filtering envelope is used for the data signal (the input signal data and the sampling frequency).)
gw551
- Multirate signal processing, Sampling from a priori probability, calculate the weight, Modern signal processing jobs when the graduate.
BP
- 利用BP网络逼近对象y(k)=u(k)^3+y(k-1)/(1+y(k-1)^2)。采样时间取1ms。输入信号为u(k)=0.5sin(6*pi*t)。(Approximate object y (k), =u (k), ^3+y (k-1) / (1+y (k-1) ^2) using BP networks. Sampling time is 1ms. The input signal is u (k) =0.5sin (6*pi*t).)
upsamplewithfucntion
- Up sampling on signal using built in function
hang_v59
- Sampling from a priori probability, calculate the weight, Using high-order cumulants of MPSK signal modulation recognition, Based on multi-document image obtained combining technique.
信号
- 可以产生一个分段信号，并画出其不同取样点下的傅里叶变换(A piecewise signal can be generated and the Fourier transform under different sampling points is drawn)