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fdtda_main_all2
1.) 1ST ORDER E FIELD OUTER RADIATION BOUNDARY CONDITION (ORBC)
2.) 2ND ORDER E FIELD OUTER RADIATION BOUNDARY CONDITION (ORBC)
3.) CAPABILITY TO SPECIFY DIRECTION AND POLARIZATION OF INCIDENT PLANE WAVE
4.) ERROR CHECKING FOR NTYPE AND IOBS, JOBS AND KOBS FOR NEAR ZONE FIELD SAMPLING IN SUBROUTINE DATSAV
5.) ERROR CHECKING OF IDONE, IDTWO AND IDTHRE VALUES
- 2009-10-01 12:16:02下载
- 积分：1
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a20700
转差频率控制的异步电机矢量控制系统仿真。。(zhuanchapinlvkongzhi)
- 2021-01-15 21:18:46下载
- 积分：1
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实验代码
由于卫星与用户接收机二者的连线方向上存在相对运动，因此引起了载波和伪码的多普勒效应，再加上接收机晶体震荡频率漂移和卫星时钟频漂等原因。接收机实际接收到的卫星载波中心频率一般不再等于信号被发射时的标称频率，这就需要接收机在载波频率一维对信号进行搜索。同时，由于卫星到接收机的距离时刻变化，加上接收机始终相对于GPS时间的偏差又并不固定，因而接收信号的伪码相位值也在改变，所以接收机也要在码相位一维对信号进行搜索。扩频信号的捕获是一个对目标信号频率域和相位域进行的二维搜索过程。(Because of the relative motion between the two of the satellite and the user receiver, the Doppler effect of the carrier and pseudo-code is caused, and the frequency drift of the oscillation of the receiver crystal and the frequency drift of the satellite clock are added. The frequency of the satellite carrier center that the receiver actually receives is generally no longer equal to the nominal frequency of the signal being transmitted, which requires the receiver to search the signal in one dimension of the carrier frequency. At the same time, because the distance between the satellite to the receiver is changed, the deviation of the receiver always relative to the GPS time is not fixed, so the pseudo code phase value of the received signal is also changing, so the receiver also searches for the signal in the code phase. The acquisition of spread spectrum signal is a two-dimensional search process for the frequency domain and phase domain of the target signal)
- 2018-06-27 08:59:05下载
- 积分：1
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Utility_vs_price
Code to determine the relationship between utility and price in a cooperative network
- 2013-07-13 03:17:39下载
- 积分：1
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lzq
基本粒子群算法
粒子群算法的基本matlab代码(The particle swarm algorithm)
- 2013-05-21 21:24:28下载
- 积分：1
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proj1
MIT--航空航天工程中的计算方法_模拟飞机的动力学
MIT公开课程--航空航天工程中的计算方法
这门课程适用于在航空和航天工程中出现的计算方法的入门学习。其应用是从航空宇宙结构，空气动力学，动力学和控制，和航空宇宙系统选出的。其技术包括：常微分方程系统的数值积分；偏微分方程式的有限差分,有限体积, 和有限元的离散化；数值线性代数；本征值问题和带有约束的最优化。(MIT- Aerospace Engineering in the calculation of simulated aircraft dynamics _ MIT Open Course- Aerospace engineering calculation methods for this course in aviation and aerospace engineering calculations appear in an introduction. The application is from aerospace structures, aerodynamics, dynamics and control, and aerospace systems selected. The technologies include: numerical integration of ordinary differential equations systems partial differential equations of finite difference, finite volume, and finite element discretization numerical linear algebra eigenvalue problems with constraints and optimization.)
- 2011-11-21 09:19:22下载
- 积分：1
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mfiles
The sample source of "Contemporary Communication Systems"
- 2009-05-27 19:23:10下载
- 积分：1
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sunspots
Sunspot activity is cyclical, reaching a maximum about every 11 years. Let s confirm that. Here is a plot of a quantity called the Zurich sunspot relative number, which measures both number and size of sunspots. Astronomers have tabulated this number for almost 300 years.
- 2010-06-01 04:01:21下载
- 积分：1
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carriermodulation
This is used for carrier modulation
- 2014-02-08 18:42:40下载
- 积分：1
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Fisher
最优分类法，用于找出数据的变差举证，并确定分类数(Optimal classification of evidence used to identify the data variation and to determine the number of classification)
- 2010-03-02 14:03:43下载
- 积分：1
