chepaizifufenge

地震剖面图的显示程序，使用matlab编写 ！(Seismic profile display program, the use of matlab !)

EMD的扩展算法，集合经验模态分解(EEMD)， 程序完整可运行(Extension algorithm of EMD, ensemble empirical mode decomposition (EEMD), complete and runnable program)

有限体积法 求解 一维二维对流扩散问题 离散格式有：中心差分和乘方格式(finite volume method solve convection and diffusion problem)

shenasai system control modern

说明：  任务：设计一个4×2.5Gbit/s 长距离光纤传输系统，并利用OptiSystem 仿真验证。 要求： 1．采用波分复用技术，波长设置以100GHz 为间隔，频率分别为193.1THz、193.2THz、193.3THz、193.4THz，每个波长传输速率为2.5Gbit/s（NRZ），传输距离为300km。采用常规光纤，光纤损耗系数为0.25dB/km。 2．单通道光发送机最大输出功率为0dBm，光接收机的接收光功率不低于－26dBm，过载点为－10dBm。 3．可以采用EDFA 作为线路放大器，其中EDFA 的输入功率限制在－18～2dBm，最大输出功率20dBm，增益范围为13～25dB，噪声指数4.0dB。(Task: Design a 4 x 2.5 Gbit/s long-distance optical fiber transmission system, and use OptiSystem simulation to verify. Requirement: 1. Using wavelength division multiplexing technology, the wavelength is set at 100GHz intervals, with frequencies of 193.1 THz, 193.2 THz, 193.3 THz and 193.4 THz, respectively. The transmission rate of each wavelength is 2.5 Gbit/s (NRZ), and the transmission distance is 300 km. The loss coefficient of conventional optical fibers is 0.25dB/km. 2. The maximum output power of a single-channel optical transmitter is 0 dBm, and the receiving power of an optical receiver is not less than -26 dBm, and the overload point is -10 dBm. 3. EDFA can be used as line amplifier, where the input power of EDFA is limited to - 18-2dBm, the maximum output power is 20dBm, the gain range is 13-25dB, and the noise index is 4.0dB.)

现代信号处理中的分数阶傅里叶变换（FRFT）的MATLAB代码，对分析信号比较有用(Fractional Fourier Transform（FRFT）code in matlab for study modern signal processing.)

implememtation of fisher algorithm using matlab

使用信号灯(semaphore)，事件(Event)，临界区(CriticalSection)进行线程同步的例子( Uses the signal light (semaphore), the event (Event), the critical zone (CriticalSection) carries on line regulation synchronization the example )

实现一维边界逐列检测，程序可在MATLAB环境下运行(achieve an out-by-dimensional border detection process will be run under MATLAB)

蛇贪蛋，一个好玩的游戏，matlab编码(The snake corruption eggs, a fun game, matlab code)