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SIMPLE algrithm in Computational fluid mechanics
应用背景This application is to focus on the numerical methods in Computational Fluid Mechanics, dealing with aeronautics, hydraulics, heat and mass transfer etc. We konw fluids have the ability to transport matter and its propertities as well as transmit force, therefore fluid mechanics is a subject that is particularly open to cross fertilization with other sciences and disciplines of engineering. The subject of fluid mechanics will be highly relevant in domains such as chemical,metallurgical, biological and ecological engineering.关键技术
SIMPLE (Semi-Implicit Method for Pressure Linked Equations) algrithm is the principal numerical method to numerical simulate incompressible fluid flow, it can remove the difficults of fake pressure disturbance and neglecting specific pressure equation for incompressible fluid flow successful. The main thoughts and steps of SIMPLE algorithm are given in this application.
The single-phase loc
- 2023-03-06 10:05:03下载
- 积分：1
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三对角矩阵最常用最快速的追赶法，应用广泛。更是样条插值逆运算的重要工具...
三对角矩阵最常用最快速的追赶法，应用广泛。更是样条插值逆运算的重要工具-Tridiagonal matrix most commonly used to catch up with the most rapid method, widely used. Spline Interpolation is an important tool for inverse operation
- 2023-06-26 10:10:03下载
- 积分：1
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圆与圆的相交，直线与圆的相交…
圆与圆交点，线与线交点，圆与线交点，全部在excel上实现，很不错-the intersect between circle to circle, line to line, and circle to line, all implemented in excel
- 2023-04-17 20:05:03下载
- 积分：1
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服务分析的质量
附加的脚本提供不同的服务类的 Wimax 网络服务质量。它可用于上行链路和下行链路的阶段。服务类等实时轮询 Service(rtPS) Unsolicated 授予 Service(UGS) 非真实时间轮询 Service(nrtPS)，延长实时轮询 Service(ertPS) 的尽力而为的服务。吞吐量、 延迟、 抖动利用他们的 awk 脚本进行评价。
- 2022-04-29 00:01:45下载
- 积分：1
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社区发现算法GN算法
GN算法是一个经典的社区发现算法，它属于分裂的层次聚类算法，最初，由Michelle Girvan和Mark Newman提出。其基本思想是不断的删除网络中具有相对于所有源节点的最大的边介数(ege betweenness)的边，然后，再重新计算网络中剩余的边的相对于所有源节点的边介数，重复这个过程，直到网络中，所有边都被删除。
- 2022-05-19 13:31:50下载
- 积分：1
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massive mimo Fundamentals, Opportunities and Challenges
应用背景Massive multiuser MIMO (MISO):
◮ M ≫ K ≫ 1 (think 100 × 10 or 500 × 50)
◮ coherent, but simple, processing
◮ Potential to dramatically improve rate & reliability
◮ Potential to drastically scale down TX power
◮ Not only theory, at least one known testbed (64× ∼10)
关键技术
Massive MIMO Operation
Not enough resources for pilots & CSI feedback, so operate in TDD.
◮ On the uplink,
◮ acquire CSI from uplink pilots and/or blindly from data
◮ detect symbols
◮ M ≫ K ⇒ linear processing (MRC, ZF, MMSE) nearly optimal
◮ On the downlink,
◮ use CSI obtained on the uplink
◮ make necessary adjustments based on reciprocity calibration
◮ apply multiuser MIMO precoding
◮ simple precoders desirable (and very good!): MRT, ZF, MMSE, ...
◮ MRC/MRT operation
◮ intracell interference will appear as
- 2022-07-07 16:58:08下载
- 积分：1
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本程序能实现对学生成绩的管理，是一个成绩管理系统 。
本程序能实现对学生成绩的管理，是一个成绩管理系统 。-the procedures for the performance of their students achieve the management, is a performance management system.
- 2022-04-30 03:34:47下载
- 积分：1
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迭代加深八数码
#include
#include
using namespace std;//变量声明
class EiNum;
#define MAX 20//MAX为最大的迭代深度
int depth;//当前树的最大深度
EiNum * root[MAX + 1];//重复当前的路径
//交换两个数
void Swap(int &a,int &b) {
int temp;
temp = a;
a = b;
b
- 2022-08-10 21:09:51下载
- 积分：1
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numerical method LU decomposition
数值计算方法 LU分解法-numerical method LU decomposition
- 2022-08-03 23:49:55下载
- 积分：1
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非线性放大器对发射信号的影响，与调制方式密切相关。不同的调制方式，所得到的时域波形是不同的，如用于欧洲移动通信的GSM制式，该制式采用了高斯滤波的最小偏移键控（...
非线性放大器对发射信号的影响，与调制方式密切相关。不同的调制方式，所得到的时域波形是不同的，如用于欧洲移动通信的GSM制式，该制式采用了高斯滤波的最小偏移键控（GMSK），是一种相位平滑变化的恒定包络的调制方式，因此可以用非线性放大器来放大，不存在包络失真问题，也不会因为频谱再生而干扰邻近信道。
-Non-linear amplifier on the transmit signal of the impact is closely related with the modulation method. Different modulation methods, the resulting time-domain waveforms are different, such as for the European GSM mobile communications standard, the standard use of Gaussian minimum shift keying filter (GMSK), is a smooth change in the phase constant envelope modulation, so you can use non-linear amplifier to amplify, there is no envelope distortion, nor because of spectral regrowth and adjacent-channel interference.
- 2022-01-31 04:18:00下载
- 积分：1
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