threephase

北航SAR代码，对脉压和SAR原理的理解很有帮助(Beihang SAR code, on the understanding of the principles of pulse pressure and SAR helpful)

说明：  电力系统潮流程序，用matlab编程的的。潮流计算是电力系统运行分析和规划设计中最常用的工具，电力系统潮流计算问题在数学上是求解一组多元非线性方程，迭代的收敛性是实用者关心的技术焦点。(Power Flow procedures, with the matlab programming. Flow calculation is the electric power system operation analysis and planning and designing the most commonly used tools, electric power system power flow calculation problem solving in mathematics is a set of multiple non-linear equations, iterative convergence is a practical technology were the focus of concern.)

lab work for begginers

包含波束域的esprit和实值化的波束域esprit程序，结构清晰，便于学习研究这方面的朋友对照程序，学习相关的原理。(Domain contains the beam and the esprit of the beam real esprit domain procedures, the structure of a clear, easy to study and research in this area control procedures friends, learning principle.)

J-K变换器综合滤波器各级K值对应的散射矩阵的S参数对应值-适合做射频微波领域滤波器的相关人士使用(S parameter corresponds to the value of the J-K converter integrated filter K values at all levels of the corresponding scattering matrix- stakeholders suitable for RF and microwave filters using field )

DateConvert：简单而快速的日期转换 DateConvert转换DATESTR（0）格式的日期向量或序列号和日期向后。 Matlab的DATENUM，DATEVEC和DATESTR接受各种不同意见，但结果他们是缓慢的。如果输入格式正是众所周知，转换可以更快： DATENUM（ 17 - 10 - 2009 11时08分23秒 ）：2.97秒 DateConvert（ 17 - 10 - 2009 11时08分23秒 ， 号码 ）：0.039秒 =>“1.3％（1000环，1.5GHz的奔腾- M的，利用Matlab 7.7） DateConvert不*不*验证作为Matlab的日期函数输入日期： DATEVEC（ 32 - 2 - 2008 25:62:63 ）的答复[2008 3 4 2 2 7] DateConvert（ 32 - 2 - 2008 25:61:67 ， 载体 ）的答复[2008 2 32 25 61 67]！ 因此DateConvert几乎微不足道，但对速度进行了优化。我需要时间排序200 000邮票，并从217个减少到11秒的时间。 请运行单元测试TestDateVec检查的有效性和速度。 测试：利用Matlab 6.5，7.7，7.8，winxp的，32位。 纯Matlab代码，所以兼容性的MacOS，Linux操作系统，64位预期。 英语月份名称是必要的。(DateConvert: Simple but fast date conversion DateConvert converts the DATESTR(0) format to a date vector or serial date number and backwards. Matlab s DATENUM, DATEVEC and DATESTR accept a variety of inputs, but in consequence they are slow. If the input format is exactly known, the conversion can be much faster: DATENUM( 17-Oct-2009 11:08:23 ): 2.97 sec DateConvert( 17-Oct-2009 11:08:23 , number ): 0.039 sec => 1.3 (1000 loops, 1.5GHz Pentium-M, Matlab 7.7) DateConvert does*not* validate the input date as Matlab s date functions: DATEVEC( 32-Feb-2008 25:62:63 ) replies [2008 3 4 2 2 7], DateConvert( 32-Feb-2008 25:61:67 , vector ) replies [2008 2 32 25 61 67] ! So DateConvert is nearly trivial, but optimized for speed. I needed it for sorting 200 000 time stamps and reduced the time from 217 to 11 sec. Please run the unit-test TestDateVec to check validity and speed. Tested: Matlab 6.5, 7.7, 7.8, WinXP, 32bit. Pure Matlab code, so compat)

将BLKS内容为首址的连续N个字节数传送至BLKD内容为首址的存储区，数据块传送程序。(BLKS content sites will be headed by a continuous N the number of bytes sent to BLKD content-led site storage area, the data block transfer program.)

face database for face recognition

模拟退火程序。f(x,y) = 5sin(xy) + x^2 + y^2的最小值，对理解模拟退火算法是一个很好的程序示例。-to a simple example illustrates the simulated annealing algorithm thinking. Simulated Annealing for the function f (x, y) = 5sin (xy) x ^ 2 y ^ 2 minimum, the right understanding of simulated annealing method is a good example of the procedure.(Simulated annealing procedure)

Finds the roots of a function using the Newton method with line search