-
orbit_integrator
考虑地球J2项摄动的轨道积分器，变步长，基于龙格库塔78阶，(orbital integrator considering the J2 pertubation, based on the Runge-Kutta 78 integrator, use automatic step control)
- 2020-12-07 14:49:21下载
- 积分：1
-
frictional model and umat
frictional model to analysis in abaqus, a good subroutine to build a new frictional relationship
- 2018-01-22 18:00:11下载
- 积分：1
-
two-dimensional-turbulent-fluid-
一个采用FLUENT计算气体-液体两相流的算例，附件文件可以直接用FLUENT打开，并附带了计算结果截图。(FLUENT is calculated using a gas- liquid two-phase study, attachment files can be opened directly by FLUENT, and the calculation results with the screenshot.)
- 2014-03-31 00:04:19下载
- 积分：1
-
usub-TEE-ECM
弹性补偿法的程序，在abaqus中进行二次开发，可以计算各种结构的极限载荷。(The elastic compensation method of the procedure, carries on two times of developments in ABAQUS, can be used to calculate the limit load of various structures.
)
- 2013-08-27 21:49:31下载
- 积分：1
-
FFT
FFT源代码 FFT源代码 FFT源代码(FFT source code FFT source code FFT source code)
- 2021-03-09 16:59:27下载
- 积分：1
-
IJarea-postproc
abaqus interface xfem
- 2013-06-21 23:01:33下载
- 积分：1
-
rejectionofnbibaseonwaveletpacket
为了进一步提高直接序列／跳频（ＤＳ／ＦＨ）扩频系统的抗干扰能力，基于小波包变换结合递归最小二乘算法设计
了一种变换域自适应干扰抑制算法，该算法采用小波包分解定位窄带干扰，递归最小二乘算法抑制窄带干扰。通过蒙特卡
罗仿真分析在增加抗干扰模块后，ＤＳ／ＦＨ系统工作在准静态时，在不同信噪比条件下抗窄带干扰性能。仿真结果表明：该
算法具有较强的自适应性以及抗窄带干扰能力，其性能优于传统的直接置零法，适用于多音干扰下的恶劣通信环境。(In order to further improve the anti-jamming capability of direct sequence/frequency-hopping spread spectrum system (DS/FH), based on wavelet packet transform combined with recursive least squares algorithm design a transform domain adaptive interference suppression algorithm, the algorithm uses wavelet packet decomposition positioning narrowband interference, narrowband interference suppression recursive least squares algorithm. By Monte Carlo simulation analysis to increase the anti-jamming module DS/FH system work in the quasi-static, in different SNR anti narrowband interference performance. Simulation results show that: the algorithm has strong adaptability and resistance to narrowband interference ability, its performance is superior to the traditional method of direct zero, poor communication environment suitable for multi-tone interference.)
- 2012-09-09 23:20:26下载
- 积分：1
-
shuzhifenxi
分数值分析的一些ppt课件，很有用，在学习C的时候，可以用到这些博大精深的思想(Fractional value analysis ppt courseware, useful when learning C, you can use these profound thought)
- 2013-05-21 16:04:39下载
- 积分：1
-
cPPpolyfit
多项式拟合，最小二乘法，c++版本实现，运行环境vc6(Polynomial fitting)
- 2013-04-29 10:37:54下载
- 积分：1
-
shock_tube_problem
求解激波管问题等产生的偏微分方程组的各种数值算法。(Shock tube problem solving, such as partial differential equations arising from a variety of numerical algorithm.)
- 2009-03-18 19:18:29下载
- 积分：1
