tengkiu

这是一个相对完整的直接序列扩频码分多址的通信系统的仿真设计，包括编码，扩频调制，解调和解码等模块，并统括系统性能的仿真，验证了系统设计的可靠性。(This is a relatively complete direct sequence spread spectrum CDMA communications system simulation design, including coding, spread spectrum modulation, demodulation and decoding module, and system simulation including system performance, validate the reliability of system design.)

基于S变换的地震薄互层分析，以及视频分析方法的对比(Based on the seismic thin interbedded S transform, and contrast of video analysis methods)

永磁同步电动机的异步启动matlab程序模型 (Permanent magnet synchronous motor to start the asynchronous process model matlab)

cdma code for wireless communication

第 一 类 第 一 类 修 正 贝 塞 尔 函 数(Modified Bessel function of first kind)

数值积分MATLAB代码，包含4种数值积分方法，分别为复化梯形、复化抛物线、梯形逐次分半、抛物线逐次分半。且编写采用向量化思维效率高、代码简洁。(Numerical integration MATLAB code, including four kinds of numerical integration methods are Trapezoidal, Compound Parabola trapezoid successive half parabolic successive half. And prepared to quantify the use of high-efficiency thinking, concise code.)

this is the matlab dat file signals

matlab关于模糊pid控制的资料，很不错。(matlab on fuzzy pid control information, very good.)

介绍了一种新的全光纤激光器，脉冲的，峰值功率不是很大(We report a narrow-linewidth (∆ λ = 0.4 nm) optical pulsed MOPA (master oscillator – power amplifier) source emitting 0.41 mJ pulses (1.5 kW peak power) in the eye-safe range (λ=1548 nm). Pulse duration and repetition rate were 90 ns and 5 kHz respectively. )

PCA算法。PCA的目的是找到能够分离出最大方差的方向，所以首先求原来所有数据三个维度上的协方差，然后求这个协方差的特征值，最大特征值为第一个方向，从此以此类推。(PCA algorithm. The purpose of PCA is to find able to isolate the direction of maximum variance, so first find all the data in three dimensions on the original covariance, and then find the eigenvalues ​ ​ of the covariance, the biggest feature is the first in one direction, from and so on.)