This lecture in a series of (Bilingual English/Arabic) lectures on "Introduction to course Digital Signal Processing Course".

This lecture is about obtaining the mathematical relationship between the input and the output of a discrete time system which is called convolution sum. Also, an example on obtaining the output using convolution through graphical method is given. Serial and Parralled interconnection of systems and relationship description to systems.

محاضره في معالجة الاشارات الرقميه تناقش العلاقه التي تربط الاشاره الداحله مع الاشاره الخارجه في نظام المعالجه الرقمي الحسابيه والتي تسمى علاقه الكونفوليوشن