integral_representations[1]

a commadjcochanint version but simplified !

奥本海姆的《信号与系统》教材英文版，很经典。(Oppenheim' s " Signals and Systems" textbooks in English, very classic.)

基于16QAM的OFDM 实现,可以得出波形(designed for 16QAM)

说明：  MATLAB s函数编程实例 可以让新手更好理解和入门，学习MATLAB的高级函数编程(MATLAB s function programming example can help newcomers better understand and get started, learn advanced function programming of MATLAB)

说明：  虚拟油泥造型交互方法研究Interactive method of virtual clay modeling(Interactive method of virtual clay modeling)

说明：  16QAM的误码率性能分析的matlab仿真(16QAM BER performance of the Matlab simulation analysis)

分析非平稳信号的工具包，时频工具包，能帮你分析非平稳信号(Analysis Toolkit non-stationary signals, time-frequency toolkit can help you analyze non-stationary signals)

说明：  matlab源代码，经典算法源代码下载。是关于DTFT的(matlab source code, source code to download the classic algorithm. Are on the DTFT)

说明：  1．用Matlab产生正弦波,矩形波,以及白噪声信号，并显示各自时域波形图 2．进行FFT变换，显示各自频谱图，其中采样率，频率、数据长度自选 3．做出上述三种信号的均方根图谱,功率图谱,以及对数均方根图谱 4．用IFFT傅立叶反变换恢复信号，并显示恢复的正弦信号时域波形图 (1. Using Matlab generated sine wave, rectangular wave, as well as the white noise signal, and display their respective time-domain waveform of Figure 2. FFT to transform, showing their frequency spectrum, including sampling rate, frequency, data length of 3-on-demand. Made of the three signals in root-mean-square maps, power maps, as well as the number of root-mean-square map 4. Fourier Transform IFFT with the restoration of signals, and displays the sinusoidal signal the resumption of time-domain waveform)

数学建模中经常用到的23个经典算法，包括文档说明和相关代码。(23 classical algorithm often used in mathematical modeling, including the documentation and code.)