yuyinjiequ

构造一组输入为白噪声加三个频率非常接近的正弦波，其信噪比为10dB，观测长度为256。试分别用普通AR谱估计和采用功率噪声抵消算法的AR谱估计估计这组信号的频率，并比较结果。(constructed a group of white noise input plus three very close to the frequency sine wave, the signal-to-noise ratio of 10dB. Observing length of 256. Were used to test the general AR spectral estimation using power and noise canceling algorithm for the estimation of AR spectrum estimation of this group of signal frequency, and the results of the comparison.)

matlab code is very good one

视频跟踪的光流法，本方法用matlab仿真(optical flow)

图像识别利用MATLAB或VC编写一个系统，使得该系统能满足信息处理、频域处理、语音增强、识别等内容。(Image recognition using MATLAB or VC write a system so that the system can meet the information processing, frequency domain processing, speech enhancement, recognition and so on.)

emd分解中采用对称延拓消除边界效应，供大家参考学习(emd decomposition of symmetric extension used to eliminate the boundary effects)

比较系统的QAM radio仿真程序，包含信道编解码，PAM，QPSK等内容，比较全面(Comparison of QAM radio system simulation program, including channel encoding and decoding, PAM, QPSK and other content, more comprehensive)

说明：  ：针对PID参数复杂烦琐的整定过程这一问题，基于MATLAB／Simulink仿真环境，模拟工程稳 定边界法的PID参数整定策略和步骤，提出了一种简单有效的PID参数整定方法．与通常的整定方法 比较，其优点是非常直观、完全可视化操作、省去了编程的工作量．仿真结果表明该方法具有良好的收 敛性，使得控制系统动态性能得到有效改善，并且很大程度上减少了工作量．(Abstract：The process of PID parameters turning is complicated and time—consuming to engi— neering technician．To solve this problem．simulating the Z～ N method of engineering turn— ing，based on the MATLAB／simulink，a simple and eficient method for PID parameters turning is presented in this paper．Compares with the general methods，it has many advanta— ges，such as simplicity，visual manipulation，leaving out the workload of program and SO on． The simulation results show the effectiveness of this method and be fit for application in the engineering．)

dds程序 有原理图 代码 哈哈 dds程序 有原理图 代码 (dds procedures diagram code says dds procedures diagram code )

RLC CIRCIUT OF CIRCUIT ANALYSIS S M FILE

麦克风语音增强算法的研究，原理是经麦克风采集的语音信号，经过功放使所需的信号增强(Microphone speech enhancement algorithm, the principle is captured by the microphone voice signal, the signal through the amplifier to make the necessary enhancements)