Signal processing and pattern analysis

[Roderich]

hi there,

I want to develop a function which gives me the "distance" between 2 vectors, i.e. the closer the two vectors are, the smaller the distance.
I need this function to recognize a similar pattern in another signal.

Anyone got a hint or maybe even Delphi source ?

best regards
Roderich

 

[svanels]

The distance between 2 vectors? Distance can be measusured between points.
If you are familiar with complex numbers, you can implement it like an object (class).
The source for complex numbers can be found at:

www.delphi3000.com category: scientific, Article: Implementing a complex number object

Regards Steven van Els
SAvanEls@cq-link.sr

 

[Roderich]

No, no, don't want to deal with complex numbers.

I meant a kind of distance function between two vectors which at the moment I implemented as the sum of the individual factors, i.e. cross correlated.

Jut wanted to know if there is anything better than cross correlation because the best value represents not always the correct corresponding position of the second vector.

best regards
Rod

 

[svanels]

Make a vector object, by the way a complex number is a two dimensional vector. In the object implement vectorial functions, inverse etc.. Steven van Els
SAvanEls@cq-link.sr