Runge-Kutta-4

解决很多地下水数值模拟问题，只需要修改相关参数就能运用(Groundwater numerical simulation to solve many problems, only a need to amend the relevant parameters will be able to use)

正交频分复用是一种多载波宽带数字调制技术。相比一般的数字通信系统， 它具有频带利用率高和抗多径干扰能力强等优点，因而适合于高速率的无线通信系统。( OFDM Simulator -------------------------------------------------------------------------------- MIMO OFDM Simulator: OFDM.m: OFDM Simulator (outer function) create_channel.m: Generates a Rayleigh fading frequency-selective channel, parametrized by the antenna configuration, the OFDM configuration, and the power-delay profile. svd_decompose_channel.m: Since full channel knowledge is assumed, transmission is across parallel singular value modes. This function decomposes the channel into these modes. BitLoad.m: Apply the bit-loading algorithm to achieve the desired bit and energy allocation for the current channel instance. ComputeSNR.m: Given the subcarrier gains, this simple function generates the SNR values of each channel (each singular value on each tone is a separate channel). chow_algo.m: Apply Chow s algorithm to generate a particular bit and energy allocation. EnergyTableInit.m: Given the SNR values, form a table of energy increments for )

区域重力资料解释中的重要任务之一,是计算基底构造及莫霍面的构造(本文统称为基线构造)(Regional gravity data interpretation of the important tasks is to calculate the basement structure and Moho structure (herein collectively referred to as the baseline configuration))

matlab程序：用最小二乘法拟合椭球曲面(matlab program: using least-squares fitting ellipsoid surface)

　综合评判是对多种属性的事物，或者说其总体优劣受多种因素影响的事物，做出一个能合理地综合这些属性或因素的总体评判(Comprehensive evaluation of DuoZhong attributes of the things is, or the overall quality DuoZhong factors by the things, make a can be reasonably comprehensive these attributes or the overall evaluation factors )

antenna　pic chengxu chuli

鱼眼畸变矫正的matlab实现(含GUI)，有几种实现方法的可供选择，主函数fish_3D_2014.m包括：2D球面坐标法，3D投影法，金字塔3D投影法(Matlab achieve fisheye distortion correction (including GUI), there are several implementations to choose from, the main function fish_3D_2014.m include: 2D spherical coordinate method, 3D projection, 3D projection pyramid)

说明：  信号处理中的多相滤波，信号处理中的多相滤波，信号处理中的多相滤波，信号处理中的多相滤波(Signal processing in multi-phase filtering, signal processing in multi-phase filtering, signal processing in multi-phase filtering, signal processing in multi-phase filtering)

有限差分正演模拟，进行地震波正演，源码是科罗拉多矿业学院开发的。(Finite difference forward modeling for seismic wave forward modeling, the code is the Colorado school of mining .)

合成cdp道集地震记录程序，matlab语言编写(Cdp gather synthetic seismogram program, matlab language)