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我的FFT分级调试程序，2048点的浮点型数据。用matlab写的。(Debug my FFT grading procedures, 2048-point floating-point data. Written by matlab.)

Illustration of Circular Shift of a Sequence

说明：  观察高斯序列 的时域和幅频特性。 ①固定p=8，q分别等于2、4、8，观察它们的时域和幅频特性，了解当q取不同值时，对信号序列的时域和幅频特性的影响 ②固定q=8，p分别等于8、13、14，观察p变化对信号序列时域和幅频特性的影响，注意p等于多少时，会发生明显的泄露现象，混叠是否也随之出现？记录实验中观察到得现象，绘出相应的时域序列和幅频特性曲线(Observed Gaussian sequence in time domain and amplitude-frequency characteristics. ① fixed p = 8, q is equal to 2,4,8 respectively, to observe them in time domain and amplitude-frequency characteristics, to understand when the different values of q, the signal sequence in time domain and amplitude-frequency characteristics of ② fixed q = 8 , p is equal to 8,13,14 respectively, to observe the changes in the signal sequence p in time domain and amplitude-frequency characteristics, note that p is equal to the number when the apparent leakage phenomenon, aliasing is also gone? Records of the experiment was observed phenomenon, draw the corresponding time-domain sequence and amplitude-frequency characteristic curves)

用以下的语句即可实现序列图像的组合。本人试了很多程序终于发现此妙招，再次感谢pudn提供的各种便利的下载，对于学者我也会多多发表自己研究的代码。(With the following statement to achieve a combination of image sequences. I have tried many programs and finally found this coup, thanks again pudn provide a variety of convenient download for academics, I also published a lot of their own research code.)

NC-OFDM系统的导频设计改进方法性能分析(Pilot design method of NC- OFDM system to improve performance analysis)

thinning is used to eliminate unwanted noise

matlab simulink 建模，实现永磁同步电机调速。pid控制(pmsm matlab simulink pid controller)

This code is in geophysics field.

binary phase shift keying amplitude modulation

实现了在三种ISI信道条件下，分别使用LMS算法和RLS算法对进行逆辨识和信道辨识及LMMSE估计。（详见自适应滤波大作业及其报告）(It use LMS and RLS algorithms to channel identification and equalization,inverse identifcation.You can see two words document in detail.)