Intergrate a array over Tb?

If I have x=[0.2 1 0.485 0.13 0.11] , I have Tb=10ms and the fs=16*fb; %Sampling frequency

Ts=1/fs; I would like to integrate the x over Tb. How can I do it without using the integration functions. Using the summing algorithm.

[Walter Roberson]

Which "summing algorithm" ?

[Willim]

integrationBase = 0:1/fs:Tb-1/fs; 
for i = 0:(length(v)/(Tb*fs))-1, 
y1(i+1)=trapz(integrationBase,v(int32(i*Tb*fs+1):int32((i+1)*Tb*fs))); 
end 

The summing algoithm I mean "summation of the discrate values on the array v"

[Walter Roberson]

So you are doing trapz() of the v array at the moment, but you feel it would be more accurate to do plain summation? If so why not just reshape v to have Tb*fs rows and sum along the first dimension ?

What reason do you have to expect plain summation to better represent the area than trapz ?

Answer 1

[madhan ravi]

Perhaps you want to use cumtrapz() or trapz().

[Willim]

I have using it but It give me a wrong answer , and I believe the summing formula is going to be easirer.