all kind of pn coded generator

DDS产生250-350M正弦波。相位量化处理，按M长度(DDS 250-350M generated sine wave.Phase quantization processing, according to M length)

本组设计的声音导引系统使用双MCU结构，采用基于时间差的声源定位算法（利用三路接收器的时差信号）结合PID算法判断并控制移动声源的速度。本设计的特色在于使用四阶Butterworth带通滤波器对声音信号进行处理，使其具有较强抗干扰能力。且系统设计性价比高，功耗低。(Our group design the Sound Guidance System based on Bi-MCU configuration, using time difference sound source orientation arithmetic（the time difference signal from three receivers）combining PID arithmetic to determine and control the mobile sound source’s velocity. The feature of the designation is processing the sound signal by four-order Butterworth band-pass filter. This enhances the anti-jamming ability. Furthermore, the system has the high performance and low price.)

快速傅里叶变换和小波包能量提取代码，可以对采集到的信号进行预处理。(Fast Fourier transform and wavelet packet energy code, can be collected signal preprocessing.)

calculates the fibonacci serial of a number

是基于超扭曲算法的直接转矩控制 基于论文Super-Twisting Sliding Mode Control of Torque and Flux in Permanent Magnet Synchronous Machine Drives(Direct Torque Control Based on Hyper-distortion Algorithms Super-Twisting Sliding Mode Control of Torque and Flux in Permanent Magnet Synchronous Machine Drives)

基于matlab的单位功率因素校正（PFC）仿真(Matlab-based unit of power factor correction (PFC) simulation)

是一个实现简单但是完整的信道估计，虽然只有ls与mmse的比较，但是提供了一篇原文论文。(Is a simple but complete channel estimation, although only ls and mmse comparison, but it provides an original thesis.)

一级倒立摆的pp算法，simulink文件(An inverted pendulum pp algorithm, simulink file)

说明：  后联平滑滤波器的卡尔曼滤波器的使用，这个代码很不错的哦(After the joint smoothing filter is the use of the Kalman filter, this code is very good Oh)

主成份分析法在证券市场个股评价中的应用，可以用SPSS软件解决(Principal component analysis in the stock market evaluation of individual stocks, you can use SPSS software to solve)