1 Ministry of science & Technology / Baghdad. Email:

2 Ministry of Science & Technology/, Baghdad.

3 Ministry of Science & Technology /Baghdad.


Designing Laser Detection and Tracking System (LDTS) needs meeting some certain requirements, one of these requirements is meeting tracking criteria for quadrant photodetector (QPD) at near and far detection range for the target in question through simulating these requirements. A reflecting truncated tetrahedral prism technique design and four separate photodetectors of certain shapes are introduced as a method to avoid tracking failure case.