DoubleSpiral

cmx823调制解调器，单音频解码器件。(cmx823 modem, a single audio decoder device.)

application of personal identification.

通信原理常见信号 包括集中常用的nrz rz NRZ_D Manchester 等线路码型，还有其功率谱密度。(signals of the communication course,it s good to use.)

利用MATLAB/simulink实现QAM调制(Using matlab simulink for simulation modulation QAM)

说明：  代数重建法，MATLAB例程，art，代数重建法，两种经典迭代格式的修正。(Algebraic reconstruction; matlab routine;Art, algebraic reconstruction, modification of two classical iterative schemes.)

One program to simulation light passing through a glass sphere. It is interesting and can be used in geometric optics.

A Hopfield network is a form of recurrent artificial neural network invented by John Hopfield in 1982. Hopfield nets serve as content-addressable memory systems with binary threshold nodes. They are guaranteed to converge to a local minimum, but convergence to a false pattern (wrong local minimum) rather than the stored pattern (expected local minimum) can occur. Hopfield networks also provide a model for understanding human memory.

很全面的matlab实例程序（100例）适合初学者掌握matlab基本命令。(Matlab is a comprehensive example programs (100 cases) for beginners to master the basic commands matlab.)

说明：  QPSK完整的调制解调程序，直接在matlab里运行就能得出准确的结果，方便(QPSK modulation and demodulation complete program to run directly in matlab accurate results can be obtained to facilitate)

A novel algorithm for sparse approximation in redundant dictionaries, called the M-Term Pursuit (MTP). This algorithm decomposes a signal into a linear combination of atoms that are selected in order to represent the main signal components.