Seed

这是一个用matlab来实现的QAM,QPSK程序，可显示星象图，调制解调的信号波形和频谱波形(This is a matlab achieved by QAM, QPSK procedure shows astrology chart, modulation and demodulation of the signal waveform and spectrum waveform)

说明：  matlab program for the simple example. which will help u to understand how to use mtlab.

Neural Network in Finance (神经网络在金融界:赢得预言性的优势)全部原码。内容包括预测与估计，对时间数列的分析，利用神经网络进行降维和分级等很多例子。(Neural Network in Finance (neural networks in the financial sector : won prophetic edge) all the original code. Including forecasts and estimates, the time series analysis, the use of neural network classification dimensionality reduction and many other examples.)

Considered a 16QAM communication system. The information rate is 2 Mb/s and the carrier frequency is 12 GHz. Assumed perfect synchronization. a) Simulated the system if the channel is AWGN and draw bit error rate of the system versus Eb/No. Compare the results with what you obtain in theory. b) Considered (15,11) Hamming code. Apply this code into the above system. Compare the results with what you obtain in theory. c) Simulated uncoded system if we have a Doppler Spread due to mobile movement in the channel. Simulate and draw the bit error rate of the system for maximum mobile speed 42.3 Km/Hour. No equalizer is used in the system. d) Applied coding of part (b) into the system of part (c). Simulate the system and discuss the results. e) Designed an interleaver for the system of part (d) to improve the coded performance results. Simulated the system.

MAC层CSMACA算法。基于matlab平台，是学习MAC层接入过程的好材料。(MAC layer CSMACA of algorithms. Based on the Matlab platform, is a good material to learn the MAC layer access process.)

matlab语言 三首歌曲程序，方便大家科研之余放松(matlab language three songs program to facilitate research of I relax)

参考Matlab提供的模块建立简化的三相锁相环的仿真模型，只保留必要的步骤，如abc-dqz只计算Vq，去除频率反馈模块和自动参数调整模块等。 建立单相锁相环的计算模型  简化单相锁相环的系统结构，保留必要的PI控制器等模块  验证并讨论输入信号频率在45-65Hz变化时设计的锁相环的动静态性能  仿真并分析三相输入信号包含谐波、不平衡和直流偏移时锁相环的锁相结果(Reference Matlab provides three-phase PLL module to establish a simplified simulation model, retaining only the necessary steps, such as abc-dqz counting only Vq, remove frequency feedback module and automatic parameter adjustment module.  simulation and analysis of the three-phase input signal contains harmonics, unbalance and DC offset PLL phase-locked Results)

黄金分割法（0.618）程序，以及进退法选择优化区间(Golden section method (0.618) procedures)

Optical Mammography Image Enhancment

运用Log-Map迭代译码算法实现Turbo码的简化译码，改善了码率，提高译码速度，减小了运算量。(The use of Log-Map iterative decoding algorithm decoding Turbo codes to simplify and improve the bit rate, improve decoding speed and reduce the computational complexity.)