- 积分
- 54
- 贡献
-
- 精华
- 在线时间
- 小时
- 注册时间
- 2018-5-22
- 最后登录
- 1970-1-1
![[用户6072900805] 粉丝数:2 微博数:4 新浪微博达人勋](source/plugin/sina_login/img/light.png)
|
登录后查看更多精彩内容~
您需要 登录 才可以下载或查看,没有帐号?立即注册
x
这是根据家园上下载的程序作出的功率谱图片,想问大家的是,感觉置信区间画出来怪怪的,我自己怀疑是纵坐标周期太大的问题,看文献中画NPO这部分周期最大是32,想问下大家怎样调整?以下是程序中需要用到的参数:
dt = 1.0 %每个数据之间的时间步长。
time = [0:length(sst)-1]*dt + 1900.0 ; % construct time array
xlim = 1899+[1,n]; % plotting range
pad = 1; % pad the time series with zeroes (recommended)
dj = 0.05; % this will do 4 sub-octaves per octave; the spacing between discrete scales. Default is 0.25. a smaller # will give better scale resolution, but be slower to plot.
s0 = 2*dt; % this says start at a scale of 6 months
j1 = 6/dj; %% Default is j1 = (LOG2(n DT/S0))/dj. this says do 7 powers-of-two with dj sub-octaves each zl:改变纵轴数值 64 128 256...
lag1 = 0.72; % lag-1 autocorrelation for red noise background
mother = 'morlet';
······
Cdelta = 0.776; % this is for the MORLET wavelet
|
|