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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
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zuixiaoerchen1
最小二乘估计法在直流电机参数估计中的一个应用，在只已知输入输出数据的情况下，就可以获得电机的内部参数。(DC motor parameter estimation least squares estimation method, in the case of known input and output data only, you can get the internal parameters of the motor.)
- 2012-10-22 09:59:20下载
- 积分：1
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光孤子传播过程 非线性薛定谔方程
说明： 本模拟是采用分步傅里叶的解，求光孤子在光线内传输过程数值求解薛定谔方程。方程是激光器在光纤中传输的过程。(In this simulation, the fractional Fourier solution is used to solve the Schrodinger equation. The equation is the process of laser transmission in fiber.)
- 2020-03-11 18:35:53下载
- 积分：1
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运筹学基础教材Operations-research-foundation
运筹学基础教材，很难得的运筹学教材，供大家学习之用。
- 2020-07-09 00:58:56下载
- 积分：1
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lxcad-stress-umat12
利用abaqus二次开发平台，利用for语言编写的混凝土弹性本构(Use abaqus secondary development platform, the use of language for concrete elastic constitutive)
- 2020-11-23 20:09:34下载
- 积分：1
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for
采用离散的数值方法，通过坐标转换并生成贴体网格系统，计算轴对称喷管流场(Discrete numerical methods, through coordinate transformation and generate body-fitted grid system, calculating axisymmetric nozzle flow)
- 2021-02-03 23:29:58下载
- 积分：1
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BEMforacoustics
求解声学问题的边界元源程序，可以为使用边界元法求解位势问题和弹性力学问题提供启发(problem solving acoustic BEM source, for the use of the boundary element method and the potential problems of elasticity to provide inspiration)
- 2006-11-15 19:06:28下载
- 积分：1
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2012-Tax
用VBA在Excel里实现分级计算，实现通过年终奖和月收入计算个人所得税的功能。数据为2012年最新的标准，对于会计电算化人员有非常强的实用性。(VBA in Excel to achieve grade calculated to achieve the functionality of the calculation of personal income tax through the end of the year Award and the monthly income. The data for 2012 the latest standards, computerized accounting personnel have a very strong practicability.)
- 2012-07-16 10:02:51下载
- 积分：1
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FCT_VOF-and-Youngs
FCT_VOF AND YOUNGS_PLIC fully functioning source codes
Debugged and fully functioning source codes
Both can be used to calculate by choosing the icase for
(1) the Zalesak rotational flow problem
(2) the shear flow problem
This complete set includes both FCT_VOF and Youngs_plic source code in f90.
Including a input data file.
The codes have been debugged and tested using MS-FORTRAN.
Results can be obtained directly from the output files and loaded to get results.
(FCT_VOF AND YOUNGS_PLIC fully functioning source codes
Debugged and fully functioning source codes
Both can be used to calculate by choosing the icase for
(1) the Zalesak rotational flow problem
(2) the shear flow problem
This complete set includes both FCT_VOF and Youngs_plic source code in f90.
Including a input data file.
The codes have been debugged and tested using MS-FORTRAN.
Results can be obtained directly from the output files and loaded to get results.
Ps: statement CALL WRITER needed to be removed and replaced with usual output statement fsuch as:
Write(*,*) x(I,j),y(I,j),fi(I,j)…. Etc., for user’s requirement.
)
- 2021-02-04 19:09:57下载
- 积分：1
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free-cfd-1.0.1
一个通用的CFD求解器，代码结构清楚，简洁，适用于开发自己的CFD程序。(A general of CFD solver, the code structure is clear, concise, applicable to the development of the CFD program.)
- 2020-10-08 00:07:38下载
- 积分：1
