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Every signal can be written as a sum of sinusoids with di® erent amplitudes and frequencies. The MATLAB command to compute the Fourier Transform and its inverse are respectively ® t and i® t

说明：  电力系统常用软件的介绍，很有针对性，适合新手了解方针方面的知识。(Power system commonly used presentation software, and objects)

this is the function of the the differential of equation that program the modeling

matlab绘图函数集手册，非常实用。适合于初学者，也适合于有一定基础的matlab用户查阅。(A handbook of set of drawing function in matlab, it is very useful for beginner, also for the users having some basis on usage of matlab.)

小波分析的盲信号处理方法，有完成的程序，波形，及输出结果，适合初学者。(Wavelet analysis of blind signal processing method, and a complete program, waveform, and output, suitable for beginners.)

完整的QPSK-MSK-QAM-OFDM调制解调matlab程序。(Complete QPSK-MSK-QAM-OFDM modulation and demodulation matlab program.)

《数字信号处理》（程佩青第３版）课后上机实验的程序(" Digital Signal Processing" (Cheng Peiqing version 3) experiment on the computer after school program)

电力抄表规约dl/t645调试软件，有助于开发645抄表程序(Electricity meter reading of the Statute dl/t645 debugging software, helps to develop 645 meter-reading program)

PSAT 2.1.5 for power system research with GUI and Matlab running environment

dftuv function used in filteringmatlab