color

source code for direct sequence spread spectrum

1. 给一段原始的语音信号（可以是自己录制的一段语音），加上一频率为3.8kHz的高频余弦噪声和频率为3.6kHz的高频正弦噪声（幅度自己可以选择），用窗函数设计一滤波器（要求最小阻带衰减为50dB）对加噪后的语音信号进行滤波，画出滤波器的频率响应曲线，画出滤波前后的时域图和频谱图。 需要用到的函数： fir1 用窗函数设计FIR滤波器的函数 2. 用GUI设计一界面（如图1所示）完成如下功能： 1） 输入一语音信号，画出语音信号的时域图和频谱图； 2） 对语音信号加噪处理，画出加噪后的时域图和频谱图； 3） 给定滤波器的性能指标，采用几种不同的方法设计滤波器对加噪信后进行滤波，画出各滤波器的频率响应曲线，画出滤波后的时域图和频谱图。 (1. to some of the original speech signal (which can be a voice you record yourself), plus a cosine frequency of 3.8kHz frequency noise and frequency of 3.6kHz frequency sinusoidal noise (in the range that they can choose), with a window function to design a filter (requires a minimum stop band attenuation is 50dB) after adding noise to the speech signal is filtered, the filter frequency response curve to draw, draw diagrams and time-domain spectrum before and after filtering. Need to use the function: function fir1 with window function design FIR filter design 2. Using a GUI interface (Figure 1) complete the following functions: 1) an input speech signal, the speech signal in the time domain to draw graphs and spectrum 2) adding noise to the speech signal processing, draw diagrams and time-domain plus noise spectrum after 3) to set the filter performance, using several different methods designed to filter letter after adding noise filtering, draw the frequency response curve of each )

心电图信号(ECG)压缩技术，内含两种算法的原理及matlab源码，经测试可用。 1 转折点算法 2 AZTEC算法(Electrocardiogram signal (ECG) compression technology, includes two algorithms principles and matlab source code, have been tested. A turning point in the algorithm 2 AZTEC algorithm)

Dragon Forth (DF) is a powerful tool for creating applications for Palm OS of any complexity. The name Forth means fully compatibility with ANS 94 standard.

具有滑动窗的geoertzel算法函数。提供了一个函数，用于实现滑动窗的geoertzel算法。已调试通过，可直接调用。(A function for slide geoertzel arithmetic which can be applied directly. )

实现数字灰度图像分割实现数字灰度图像分割实现数字灰度图像分割(Digital gray images digital gray images digital gray images)

基于kaiser窗的双谱线插值FFT谐波分析，采用了小波去噪的思想，主要是基于mtlab的程序，包括调制，解调，信噪比计算，均值便宜跟踪的示例，微分方程组数值解方法，一些自适应信号处理的算法。( Dual-line interpolation FFT harmonic analysis kaiser windows, Using wavelet denoising thought, Mainly based on the mtlab procedures, Includes the modulation, demodulation, signal to noise ratio calculation, Example tracking mean cheap, Numerical solution of differential equations method, Some adaptive signal processing algorithms.)

波束形成中MVDR波束形成的数据仿真及其结果(beamform of MVDR)

matlab遗传算法工具箱，在编程时使用遗传算法时，可以直接用工具箱中的函数(matlab genetic algorithm toolbox, use genetic programming algorithm can directly use the toolbox function)

基于改进人工蜂群算法的K均值聚类算法-喻金平-郑杰-梅宏标，matlab(K-means clustering algorithm based on improved artificial bee colony algorithm-Yu Jinping-Zheng Jie-Mei Hongbiao, matlab)