How to calculate the area under a main lobe

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KatherineS 2019-8-7

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https://ww2.mathworks.cn/matlabcentral/answers/475215-how-to-calculate-the-area-under-a-main-lobe

编辑： KatherineS 2019-8-7

Screen Shot 2019-08-07 at 11.22.52.png

Hi,

I have two main lobes with side lobes, I need to calculate the area underneath the main lobe, and then the area between the peak and full width half height? Does anyone know how to do this? I have searched the documentation but I cannot find anything that works. I have attached the image so the probelm can be seen

Thanks in advance

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Bobby Huxford 2019-8-7

Sounds like an area under the curve problem. I would recommend using the trapz() function (at a range value of about 6?). Its hard to tellif your data is actually 3 dimensional or not. It seems to only really have a value at 2 range values.

info on trapz():

https://uk.mathworks.com/help/matlab/ref/trapz.html

KatherineS 2019-8-7