Gardner_baseband

拨号按键DFMF仿真程序，数字键及字母键模拟传输中的发送与接收(Dial buttons simulation)

We use the hw_value as an index into our private channel structure.

关于距离走动和距离走动校正的仿真程序，思路清晰，很有条理，赶紧下载吧。(About distance walking distance around and calibration of the simulation program ideas clearly, very organized, hurriedly download it )

基于自适应算法的自适应滤波器，对滤波器结果做了100次统计完成的(Adaptive algorithm based on adaptive filter, the filter results 100 statistics completed)

高阶谱分析，很实用，能帮助分析非平稳信号(Higher order spectral analysis, it is useful to help analyze non-stationary signals)

产生IFF信号MODES询问及应答方式的GUI界面程序.(IFF signal generated MODES mode of inquiry and response procedures GUI interface.)

一个老外编的卡尔曼滤波的matlab程序，内有详细说明，英文(A foreigner series of Kalman filter matlab program, there are detailed instructions in English)

传统的宽带信号中抑制正弦干扰的方法是采用陷波器(notch filter),为此需要精确知道干扰正弦的频率.然而当干扰正弦频率是缓慢变化时,且选频率特性要求十分尖锐时,则最好采用自适应噪声抵消的方法.下图是用一个二阶FIR的LMS自适应滤波器消除正弦干扰的一个方案。该代码实现了以下功能： 1) 借助MATLAB画出了滤波器的误差性能曲面和误差性能曲面的等值曲线； 2） 给出了最陡下降法以及LMS算法的计算公式； 3） 用MATLAB产生了方差为0.05, 均值为0白噪音S(n)，并画出某次采样得到的波形； 4） 根据 2）中的公式，并利用 3）中产生的S(n)，在 1）中的误差性能曲面的等值曲线上叠加画出了采用最陡下降法以及LMS法时H(n)的在叠代过程中的轨迹曲线； 5）用MATLAB计算并画出了LMS法时误差随时间n的变化曲线（对应S(n)的某一次的一次实现）和e(n)波形； 6）在 1）中的误差性能曲面的等值曲线上，叠加画出采用LMS法得到的100次实验中的H(n)的平均值的轨迹曲线； 7）最终对结果进行了分析，具体见压缩包的word文档。 (Wideband signal in the conventional sinusoidal interference suppression method is the use notch filter (notch filter), this requires precise knowledge of the frequency of a sinusoidal interference . However, when the interference frequency sinusoidal changes slowly , and the selected frequency characteristic requirements are very sharp , then best use of adaptive noise cancellation method . following figure is a second-order FIR LMS adaptive filter to eliminate a program sinusoidal interference . The code implements the following functions:   A ) draw with MATLAB error performance of the filter surface and the surface contour error performance curve 2 ) gives the steepest descent method and the LMS algorithm formula 3 ) generated using MATLAB variance of 0.05 with a mean of 0 white noise S (n), and draw a particular sampling waveform 4 ) based on 2 ) of the formula , and use 3 ) generated in S (n), in a ) the error performance curves superimposed on the surface contour pl)

排队问题仿真模型的代码，顾客到达时间和服务时间服从均匀分布。(Simulation model of the queuing code, the customer arrival time and service time uniform distribution.)

Display 3D volumetric data such as MRI images dynamiclly. Click on an image to change the position.