qsyn10

心电信号检测及其前期处理，心电信号检测及其前期处理(ECG testing and pre-processing, ECG detection and pre-processing)

基于CDMA使用多个伪到整个对象序列嵌入水印恢复(CDMA-based multiple sequence of pseudo-embedded watermark to restore the entire object)

听觉信号加工的双通路模型是北大教授吴玺宏2008年的一篇很重要的文章(Two-channel audio signal processing model)

First a estimate of wireless sensor nodes is made and a network mesh will be created based on some topology techniques. A connection has to be established between Node I and all the vicinity nodes.

基于波形分集的雷达抗距离欺骗干扰方法（二）的仿真，仿真采用了简单的线性调频信号和时域脉压(Radar distance deception jamming resistance method based on waveform diversity (2) simulation, the simulation using the simple linear frequency modulation signal and the time domain pulse pressure)

有源电力滤波器可以使用的模型，电流控制使用重复控制算法(active power filter using repetitive control)

有限差分法 微分方程和积分微分方程数值解的方法。基本思想是把连续的定解区域用有限个离散点构成的网格来代替， 这些离散点称作网格的节点；把连续定解区域上的连续变量的函数用在网格上定义的离散变量函数来近似；把原方程和定解条件中的微商用差商来近似， 积分用积分和来近似，于是原微分方程和定解条件就近似地代之以代数方程组，即有限差分方程组 ， 解此方程组就可以得到原问题在离散点上的近似解。然后再利用插值方法便可以从离散解得到定解问题在整个区域上的近似解。 (Finite Difference Method Numerical solution of differential equations and integro-differential equation approach. The basic idea is to set a continuous solution of the region with a finite number of discrete points instead of a grid consisting of, these discrete points called grid nodes the solution of a continuous area on a given function of continuous variables used in the definition of discrete grid variable function approximation the original equation and boundary conditions in the micro-business operators to approximate differential, integral with the points and to approximate, so the original differential equations and boundary conditions are replaced by algebraic equations near Side, that is, finite difference equations , solve this equation group can get the original problem in discrete points on the approximate solution. And then using interpolation methods can be determined from the discrete solution of the problem solution of the approximate solution on the entire region)

1、 生成多周期线性调频信号，并对其进行频谱分析； 2、 对仿真生成的信号利用两种窗口函数进行STFT变换生成时频分析图(1, to generate multi-cycle chirp signal, and its spectrum analysis 2, the signal generated by the simulation window function using two STFT transform to generate time-frequency analysis chart)

说明：  主要实现数表建立，查找功能，实现对数据的管理(Mainly the number of tables to achieve the establishment of search functions, to achieve the data management)

数字信号处理，输入一段加有噪声的信号，经过一段滤波程序后输出有用波形(Digital signal processing, input a signal with noise added, after a filtering procedure useful for waveform output)