% This code solves the NLS equation with the split-step method % idu/dz - sgn(beta2)/2 d^2u/d(tau)^2 + N^2*|u|^2*u = 0 % Written by Govind P. Agrawal in March 2005 for the NLFO book %---Specify input parameters clear all; % distance = input(’Enter f
n=size(C,1);%n表示问题的规模（城市个数） D=zeros(n,n);%D表示完全图的赋权邻接矩阵 for i=1:n for j=1:n if i~=j D(i,j)=((C(i,1)-C(j,1))^2+(C(i,2)-C(j,2))^2)^0.5; else D(i,j)=eps; %i=j时不计算，应该为0，但后面的启发因子要取倒数，用eps（浮点相对精度）表示 end D(j,i)=D(i,j); %对称矩阵 end end Eta=1./D; %Eta为启发因子，这里设
霍维茨汤姆森估计量。Horvitz-Thompson Estimator. 用于不等概不放回抽样的总体量估计。Example: The H-T Estimator for SRS without replacement
Consider taking a simple random sample(SRS. without replacement, of size n from a
population of size N. The inclusion and joint inclusion pr
自己学习3GPP LTE协议时的一些有用的学习笔记，非常适合LTE初学者作为参考答疑。12接口协议栈
LTE网络中信令及用户数据流路径情况如卜:
UE
E-Node B
NAS
NAS I
StAR
APP
SC TR
RRC
S1AP
X2AP
PDCP
PDCP
SCTP
RLC
RLC
SGW
MAC
MAC
GTPU
GTPU
PHY
PHY
UOP
UDP
信令流
数据流
控制面协议栈
I UE
eNode B
MME
NAS
NAS
RRC
RRC
PDCP
PDCP
RLC
RLC
