Hello, In another post I asked about interpolation and sampling and I got some good response. After reading them, I am now interested in non uniform sampling and interpolation. What I am interested is to solve following type of problems: Assuming I have a 1D signal that the value of it is known at n=[1 3 4 6 9 10 15 19]. I want to calculate the values at other points {n=[0 2 5 6 7 8 11 12 13 14 16 17 18 20]) . I think I can do this in by interpolation. Since the distance between samples that I have are non uniform, I can't use normal interpolation and I should use some non uniform interpolation technique. Where can I find more information on this subject? A paper or tutorial is very good. How can I do this in 2D? Is there any Matlab code that implements these types of interpolations? Especially 2D interpolation. Best regards

# non uniform sampling and interpolation

Started by ●July 16, 2006

Posted by ●July 16, 2006

ma wrote:> Hello, > > In another post I asked about interpolation and sampling and I got some > good response. After reading them, I am now interested in non uniform > sampling and interpolation. What I am interested is to solve following type > of problems: > > > > Assuming I have a 1D signal that the value of it is known at n=[1 3 4 6 9 > 10 15 19]. I want to calculate the values at other points {n=[0 2 5 6 7 8 11 > 12 13 14 16 17 18 20]) . I think I can do this in by interpolation. Since > the distance between samples that I have are non uniform, I can't use normal > interpolation and I should use some non uniform interpolation technique. > > > > Where can I find more information on this subject? A paper or tutorial is > very good. > >Hello MA, An all around basis can be found in a paper titled "A Chronology of Interpolation" Just google for it and you should find a .pdf version you can download. This paper is excellant for providings methods and their references. IHTH, Clay S. Turner