求滞回曲线耗能

该文件是PQ分解法，可以更有效地解决IEEE30节点系统的潮流，希望可以给广大朋友一定的帮助。(The file is PQ decomposition, can more effectively address the trend IEEE30 bus system, hoping to be helpful to the general friend.)

first-order Engquist-Majda ABC in an FDTD program for 2D-TMz Wave.

skin detection skin recognized

code for sattelite calculaton

QR 分解 （包括Householer, Givens, 经典Gram Schmidt, 修正的GS methods)(QR factorization including Householer, Givens, CGS, MGS)

语音信号的TDOA算法 TCT双边变换 宽带doa算法 基于MUSIC(TDOA algorithm TCT bilateral transform speech signal)

主要用于辐照图变化下，对最大功率的寻求，代码基本没问题，希望有所帮助(It is mainly used to seek the maximum power under the change of irradiation pattern.)

测绘工程中常用的坐标转换代码，有WGS-xyz坐标系转经纬度、ENU坐标，有北天东坐标系转WGS-xyz、经纬度等(MAPPING commonly used coordinate transformation code, WGS-xyz coordinate system of latitude and longitude turn, ENU coordinate with the northern east coordinates turn WGS-xyz, latitude and longitude)

说明：  BT法估计功率谱，由自相关函数来估计信号的功率谱(BT power spectrum estimation, by the autocorrelation function to estimate the signal power spectrum)

说明：  一种应用matlab进行光谱定标和随机数产生的源代码(An application for spectral calibration matlab and random number generator source code)