Sarin Sukumar A wrote: > I have tried the convolution technique, i used conv2(A,B) in matlab which tells us little useful about what you actually did. What exactly do you think "the convolution technique" entails? ******************************************************************** Embed Inc, Littleton Massachusetts, http://www.embedinc.com/products (978) 742-9014. Gold level PIC consultants since 2000. -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist