huigui

用于黑启动求解频率变化值的牛顿拉夫逊潮流分解，输出由每次迭代后各参数的变化量。(Newton Raphson trend for black start solving the frequency change value decomposition, the output from each iteration, each parameter change.)

三次TC-Bezier曲线的拼接以及双三次TC-Bezier曲面拼接。(Three TC-Bezier Curves and Bicubic TC-Bezier Surfaces.)

this file is a simulation of maximum boost control in z_zource inverter

用MATLAB编写的XFEM程序，可以计算两种材料的结构有限元分析，可以计算应力(XFEM using MATLAB program that can calculate the two materials finite element analysis, we can calculate the stress)

进行迭代仿真，实现耦合方程的求解。通过有限次的迭代，来实现无穷次的仿真。(Iterative simulation, to solve the coupling equations。Through the finite iteration, to realize the simulation of infinite time.)

基于Rao算法的光子计数检测及相关评价,详细介绍了光子的技术方法(Rao algorithm based on photon counting detection and related evaluation of the technical details of the method of photon)

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.)

一个基于声卡的基本信号发生器，可以产生正弦波、方波、三角波和双频波，本程序有良好的图形界面。(A sound card based signal generator can produce sine, square, triangle wave and dual wave, this program has a good graphical interface.)

用matlab编写的有关信号与系统和数字信号处理的源程序(Prepared using matlab on signals and systems and digital signal processing of the source)

To convert complex fixed point number to floating point number