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AzimuthdependenceofDopplerspectraofseaclutteratlo
Azimuth dependence of Doppler spectra of sea clutter at low grazing angle
- 2010-01-27 13:52:10下载
- 积分：1
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sinorder
为sinudoidal模型的AIC阶估计.AIC信息准则即Akaike information criterion，是衡量统计模型拟合优良性的一种标准，又由于它为日本统计学家赤池弘次创立和发展的，因此又称赤池信息量准则。它建立在熵的概念基础上，可以权衡所估计模型的复杂度和此模型拟合数据的优良性。
在一般的情况下，AIC可以表示为： AIC=2k-2ln(L)
其中：k是参数的数量，L是似然函数。 假设条件是模型的误差服从独立正态分布。 让n为观察数，RSS为剩余平方和，那么AIC变为： AIC=2k+nln(RSS/n)
增加自由参数的数目提高了拟合的优良性，AIC鼓励数据拟合的优良性但是尽量避免出现过度拟合(Overfitting)的情况。所以优先考虑的模型应是AIC值最小的那一个。赤池信息准则的方法是寻找可以最好地解释数据但包含最少自由参数的模型。(AIC order estimation for sinudoidal model)
- 2013-12-05 13:18:54下载
- 积分：1
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Matlab-Basic-Tutorial
MATLAB的入门书籍，编写思路清晰，内容偏基础，适合刚入门的同学学习。书的页码不多，在很少的时间内就可以完成。(MATLAB study books for begineers, which writing with clear ideas, content-based bias for students just getting started learning. Book have little pages and easy to complete.)
- 2012-01-17 17:57:15下载
- 积分：1
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SN_ICIC
蜂窝小区资源分配，分配功率和频率资源，通过遍历实现吞吐量最大化。(Cell allocation of resources, power and frequency allocation of resources to maximize throughput achieved by traversing.)
- 2021-05-07 19:58:36下载
- 积分：1
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bpNN
liangge xin hao 特征提取后用bp神经网络进行识别(BP feture extract)
- 2016-04-24 10:26:51下载
- 积分：1
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matlab-bgl-master
复杂网络工具包,便于计算复杂网络边介数，最短路径等问题(Complex Network Kit)
- 2020-11-09 23:39:47下载
- 积分：1
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FiberGratingSpectra
传输矩阵法计算啁啾光栅反射谱
本节中给出传输矩阵法计算啁啾光栅反射谱和
时延的完整M at lab 程序实例, 本段代码在
M at lab513 和W indow s2000 环境中运行通过。运行结果如图8 所示。可以改变光栅长度、有效折射率、折射率调制深度、啁啾系数等参数来获得不同参数下光栅反射谱和时延曲线。如果打开“％ 切趾”行的屏蔽符“％ ”则可得到切趾后光栅反射谱和时延特性曲线, 此时计算所得的曲线将比图8 中所示的曲线平滑很多。(Transfer matrix method to calculate reflection spectrum of chirped grating is given in this section transfer matrix method to calculate chirped grating reflection spectrum and the delay of a complete example of M at lab procedures, the above code in M at lab513 and W indow s2000 environment to run through. The results shown in Figure 8. Can change the grating length, the effective refractive index, refractive index modulation depth and chirp coefficient parameters to obtain different parameters of grating reflection spectrum and the time delay curve. If you open Apodization line shielding Fu can be grating after apodization reflection spectrum and the delay characteristic curve, the curve at this time will be calculated as shown in Figure 8 a lot of curve smoothing.)
- 2008-12-20 15:07:24下载
- 积分：1
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Strapdown
捷联惯性导航滤波算法ｍａｔｌａｂ仿真,一定对哪些初学者有帮助(strapdown navigationg filtering algorithm)
- 2010-07-20 16:12:05下载
- 积分：1
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linear-
线性规划程序很好用非常强大建议初学者可以史实(linear matlab)
- 2012-04-16 21:17:35下载
- 积分：1
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Simple-Clustering
ICA Clustering
In computer science, Imperialist Competitive Algorithm (ICA)[1] is a computational method that is used to solve optimization problems of different types. Like most of the methods in the area of evolutionary computation, ICA does not need the gradient of the function in its optimization process.
From a specific point of view, ICA can be thought of as the social counterpart of genetic algorithms (GAs). ICA is the mathematical model and the computer simulation of human social evolution, while GAs are based on the biological evolution of species
- 2012-08-18 20:11:12下载
- 积分：1
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