pts2

matlab 中求besselj导数的根，可以根据需要，改变输入值得到不同的根 ( seek besselj derivative of the root in matlab. you may change the input to found the different answer.)

用于智能天线原理演示（一维直线阵） 生成的指向性波束在主瓣方向与其他方向的功率对比(used for demostration of amart antenna（1-dimension straight array） to compare the power within the main lobe and other direction of the generated directional beam )

Single-carrier FDMA (SC-FDMA) is a frequency-division multiple access scheme. Like other multiple access schemes (TDMA, FDMA, CDMA, OFDMA), it deals with the assignment of multiple users to a shared communication resource. SC-FDMA can be interpreted as a linearly precoded OFDMA scheme, in the sense that it has an additional DFT processing step preceding the conventional OFDMA processing.

MATLAB/Simulink仿真模型+设计说明书。 基于SVPWM控制的三相逆变并网控制仿真设计，并附有详细设计说明书一份。 实用可行。(Based on matlab/simulink. matlab/simulink models and design instructions.)

虚拟工厂模式典型实例，通俗易懂，易学易仿(abstract factory example)

说明：  黄金分割法，带约束条件 进退法求函数极小值，单谷区间(0.618, with restrictive conditions act Method function minimum, a single-interval)

有关洛伦兹系统的非线性仿真实例的程序，非常经典(this is a program fo lonze nonlinear system)

利用smith圆图演示射频电路匹配过程，参数可调，界面良好。(Smith chart shows the use of RF matching process, adjustable parameters, the interface is good.)

利用模态叠加法实现对四自由度系统的共振频率与前四阶主振型的求解(The method of modal superposition is used to solve the resonance frequency and the first four main vibration modes of the four degree of freedom system.)

说明：  此程序是运用music方法估计功率谱，并实现了信号还原。(This program adopts the mathod of music psd to estimate the powerdensity,and get the original signal.)