In order to realize recognition of moving and stationary states of long distance infrared target

infrared detection system based on thermopile sensor is designed. The system comprises a ladder analysis（ GRIN） lens

MEMS thermopile sensor

signal conditioning circuit

data acquisition circuit and recognition algorithm. Detection results show that with the same optical path system

it can achieve more distance than the system of pyroelectric

realize the recognition of dynamic and static targets

and based on the difference in detecting target temperature and radiation area

it can achieve the distinction between human

vehicle and other infrared targets. This proposed method provides a new solution for the detection and recognition of infrared targets.