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DDS信号的产生程序，以及DDS相关文章，综合报告。(DDS signal generation procedures and the DDS articles, comprehensive reports.)

说明：  针对传统Butterworth低通滤波器存在检测精度、稳定性和响应时间之间的矛盾问题,提出了一种新型高阶 Butterworth低通滤波器 (Butterworth low-pass filter for the existence of traditional detection accuracy, stability, and contradictions between the response time, a new high order Butterworth low-pass filter)

依据GSM 05.03建议，在高斯干扰和突发干扰下，对TCH/FS信道作信噪误码性能的仿真(05.03 based on GSM, the Gaussian interference and unexpected interference, right TCH/FS channel for the signal to noise BER simulation)

分析了空间矢量永磁同步电机数学模型 建立了永磁同步电机空间矢量控制系统仿真模型 并在MATLAB环境下对变频调速系统进行仿真实现(the space vector PWM controlled PMSM is analyzed the simulation model of space vector PWM controlled PMSM is presented and speed control system is simulated)

the Simulink model2 of full car

极坐标系下的画图及其转换公式，特殊作图需要用到(Polar coordinates of the drawing and the conversion formula, need to use special drawing)

用matlab编写的实现三次样条插值法的代码，生成图像可显示第一节点，第二节点，误差点。(Written by matlab cubic spline interpolation to achieve the code to generate the image to show the first node, second node, the error point.)

mathlab的三个分别灰色绝对关联度，相对关联度，归一关联度的代码，是三份M文件(mathlab absolute correlation of the three were gray, relative correlation, normalized correlation of the code, the file is three M)

用MATLA实现机器学习中的批处理梯度下降法和随机梯度下降法(Batch gradient descent method and stochastic gradient descent method in machine learning using MATLA)

粒子滤波算法的matlab代码，目标跟踪轨迹预测(Particle Filter Algorithm Target tracking trajectory prediction)