how to find the intersect between the curve and the straight line ?
조회 수: 1 (최근 30일)
이전 댓글 표시
close all;
clc;
clear all;
files={
'B1586-IIA 14.2 2.00 303 T10 26.01mA -8.6.txt'
};
for t=1:size(files,2)
h=dlmread(files{t},'\t', 5, 0);
x = h(:,1);
y = h(:,2);
k=y;
l=x;
end
fig=figure();
set(fig,'color','white');
plot(x,y,'b*');
xlabel('frequency (GHz)');
ylabel('Response(dBm)');
hold on
X=[];
N=14;
for i=0:N; % Making the Y=X*phi making X Matrix
X=[X,l.^i];
end
phi=inv(X'*X)* X'*k;
Y=X*phi;
c1=plot(x,Y,'g-','linewidth',2);
hold on
initialY=-50.59;
c2=plot([0 14e9], [initialY-3 initialY-3],'y-','linewidth',2);
C1 is the Curve and C2 is the -3db line
how to i find the intersection between the curve and the -3db line ?
댓글 수: 0
답변 (0개)
참고 항목
카테고리
Help Center 및 File Exchange에서 Statistics and Machine Learning Toolbox에 대해 자세히 알아보기
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!