错误原因是因为delta和omega的维度不一样,所以最后一样相乘就出错了。需要修改两个地方:
t=0:1:25;
n=0:1:366;
a_omega = 15.*(t-12);
omega = repmat(a_omega,1,367); % ① 修改元素个数:26×367
a_delta = 23.45.*sind(2*pi*(284+n)/365);
for ii = 1:length(n)
for jj = 1:length(t)
delta((ii-1)*length(t)+jj) = a_delta(ii);
end
end
phi = 40.1;
sind_alpha = sind(phi)*sind(delta)+cosd(phi)*cosd(delta).*cosd(omega); % ② 使用点乘