SPWM

该压缩包包含基于S3C6410的检测电机转速的驱动程序以及上层的调试程序(The archive contains S3C6410-based detection of motor speed drivers and upper debugger)

对当前通信信号中常用的数字调相信号BPSK、QPSK、1／4一QPSK、8PSK的调制识别问题，提出了一种基于信号差分高阶累积量的识剐算法。该算法分两个层次进行调制识别，首先利用信号的四阶累积量特征对BPSK、QPSK和{1／4一QPSK、8PSK}信号进行识别，然后再利用信号差分的四阶和八阶累积量特征对1/4-QPSK、8PSK信号进行识别。从理论上分析了的该算法的有效性，并通过计算机仿真验证了算法具有良好的性能。(A recognition algorithm based on differential high-order cumulant is proposed for the modulation recognition problems of BPSK, QPSK, 1/4-QPSK and 8PSK, which are commonly used in current communication signals. The algorithm is divided into two levels for modulation recognition. Firstly, BPSK, QPSK and {1/4-QPSK, 8PSK} signals are identified by using the fourth-order cumulant characteristics of signals, and then 1/4-QPSK and 8PSK signals are identified by using the fourth-order cumulant and eighth-order cumulant characteristics of signal difference. The validity of the algorithm is analyzed theoretically, and the good performance of the algorithm is verified by computer simulation.)

用DFT (FFT)对连续信号进行频谱分析(Spectrum Analysis of Continuous Signals Using DFT (FFT))

利用MATLAB/simulink实现4ASK调制(Using matlab simulink for simulation modulation 4ASk)

考虑时变系统，采用遗忘因子递推最小二乘法进行参数识别(The time-varying system is considered, and the forgetting factor recursive least square method is used to identify the parameters)

6自由度机器人工作空间matlab仿真所有程序(6 dof robot workspace)

说明：  直流电动机闭环调速系统 (n1变化) 已经测试过可以使用(Closed-loop DC motor speed control system (n1 change) has been tested can use)

ofdm仿真程序有关信道传输中的多径效应，多普勒频移，时延扩展(OFDM simulation program on the transmission channel of multi-path effects, Doppler frequency shift, delay spread)

说明：  一种二值水印嵌入的方法，个人编写的，里面还有ppt，及Arnold置乱算法(a watermark embedded value method, personal preparation, there is also ppt, and Arnold Scrambling Algorithm)

dsp+arm开发板原理图和pcb，给开发双系统的提供参考(dsp arm reference design)