How to count the total interruption?

2020 4 30
1 个回答
更新时间：2020 5 1
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figure(1)
plot(a,b,'r*','Markersize',1);
xlabel('Epoch')
ylabel('PRN')
title('Satellite Visibility from Javed Receiver 1');
Hello
I have plot a signal in which i am getting some interruption. Plot is of total number of visible satellite on y-axis and total number of epoch on x-axis. So I am getting graph as attached.

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Adam Danz
Adam Danz 2020-4-30
My guess is that you've got NaN values. You can count the number of NaN values:
sum(isnan(x))
vimal kumar chawda
vimal kumar chawda 2020-4-30
figure(1)
plot(a,b,'r*','Markersize',1);
xlabel('Epoch')
ylabel('PRN')
title('Satellite Visibility from Javed Receiver 1');
In the above case , How can I count it. As you can see the plot and the data in a and b array.
Adam Danz
Adam Danz 2020-4-30
The variables you're plotting are 'a' and 'b'. Check for NaN values in both using isnan().
There is no gap or NaN in the data so it is difficult plot it.
How can I do it and please find the attachement of a and b ? I think you are giving my right direction and I am not able to fidure it out.

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回答（1 个）

KSSV
KSSV 2020-5-1

0 个投票

There are no NaN's in the data. To get the breaks/ interruption you can get the successuve distances and find the ditances which are greater then the resolution.
a, b are your point arrays.
da = diff(a) ;
db = diff(b) ;
d = sqrt(da.^2+db.^2) ;
iwant = nnz(d>1) ; % I assume if the points are continuous the distance should be 1.

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