jifajihuafashujuchuli

学习matlab时编写的一个关于psk的小程序，应该还是有用的(Matlab prepared to learn when a small program on the psk, it should be useful)

This program simulates the bit-error-rate (BER) performance of OSTBC with L=4 antennas over the frequency flat Rayleigh block fading channel The code is developed for real orthogonal design, code rate 1/2 modulation- 16 QAM with gray coding resulting in 2 bits/sec/Hz.(This program simulates the bit-error-rate (BER) performance of OSTBC with L = 4 antennas over the frequency flat Rayleigh block fading channel The code is developed for real orthogonal design, code rate 1/2 modulation-16 QAM with gray coding resulting in 2 bits/sec/Hz.)

说明：  时域滤波方法，频域滤波大全（包括中值滤波，均值滤波，理想低通，巴特沃斯低通 带通滤波器(Time-domain filtering, frequency domain filtering Daquan (including the median filter, mean filter, the ideal low-pass, Butterworth low-pass band-pass filter)

Simulates QPSK Modulator/Demodulator. Simulink Platform - Matlab 7.0

电压源换流器型高压直流输电VSC-HVDC（ Voltage Source Converter HVDC） 技术是当今世界电力电子技术应用领域的制高点.能有效提高电能质量并确保电网安全稳定运行，是智能电网发展中具有代表性的 关键技术之一. (VSC-HVDC（Voltage Source Converter HVDC） )

Stores and customizes numeric array or cell array in Excel workbook using ActiveX interface

说明：  混沌理论中的可预测分析中的GP算法程序，比较好用，希望对大家有帮助(禄脤茫莽脌铆脗脹脰脨渭脛 驴 脡脭 陇 虏 芒 脰脦枚脰脨渭脛GP脣茫 篓 鲁 脤脨貌 拢 卢 卤 脠 陆 脧 潞 脙脫脙 拢 卢 脧 拢 脥没 露 脭)

说明：  《动力机器基础》-李著璟-源程序.rar(the dynamic programe of mechanical foundation)

Cryptography has a long and fascinating history. The most complete non-technical account of the subject is Kahn’s The Codebreakers. This book traces cryptography from its initial and limited use by the Egyptians some 4000 years ago, to the twentieth century where it played a crucial role in the outcome of both world wars.

异步电动机的变频调速，采用IGBT全桥逆变器(Variable-Frequency Induction Motor Drive)