Interpolating linearly between many values in a vector

I am using a sensor which updates time information at 1Hz, but samples data at 1kHz. Therefore I have a time array like so:

t_old =

if the collect was n seconds long. I would like 999 other time stamps in between the already existing ones. So the result ought to be

t_new =

Answer 1

[Adam Danz]

Set the 'resampleRate' to 1000 if you want [1,2] to become [1.001, 1.002, ... 2.999].

'timestamps' is your original vector.

resampleRate = 1000; 
timestamps = 1:10;  %must be a vector 
timeStampsResampled = reshape((timestamps(:) + linspace(0,1-1/resampleRate,resampleRate)).',1,[]);

Answer 2

[Stephen23]

>> t_old = 1:10; % times 1:N
>> rate  = 1000; % 1 kHz
>> t_new = linspace(t_old(1),t_old(end),(numel(t_old)-1)*rate+1);