how many paddings I need for my signal?

I have a signal and a filter with this size: 1*282

now I dont know how many paddings I should add to my signal.

[2NOR_Kh]

I found an equation.

if stride is 1 then it should be: (filter size-1)/2

so in my question the padding should be 140.

[dpb]

Without a lot more context of what this signal is and what you're trying to do with it, specifically, this is totally incomprehensible to anybody that doesn't have all the background you have -- which would be nobody here.

What equation did you find -- and for what?

[2NOR_Kh]

I have a rf data which is ultrasound signals of abdomen area. I am applying some filters to extract different information and features from the signal, and then combine them.

However, it is a long process and I just mentioned the general view of what I am doing. when I combine the result of applying filters on top of each other, it seems they are not aligend. So, I am going to apply padding and then apply filters to see if they are aligned or not. I wanted to find the optimize number of paddings because this is a heavy dataset that I am working with.

[dpb]

Well, certainly nobody can comment or supply specific feedback that would be of any use specifically with only such general background as input...all I could suggest if you don't want to provide such detail to the community is to read the literature in the application area.