Kugwiritsa ntchito njira zoyendetsera ndege zopanda anthu (INS) kumaphatikizapo madera angapo okhudza kuuluka kodziyimira pawokha, malo olondola, kutsatira zomwe zatsala komanso kuyenda m'malo ovuta. Zochitika zenizeni zogwiritsira ntchito ndi mayankho ofunikira aukadaulo alembedwa pansipa:

Chigawo choyezera cha inertial (IMU) ndi chipangizo choyezera chomwe nthawi zambiri chimakhala ndi accelerometer ya axis zitatu, gyroscope ya axis zitatu, ndipo, nthawi zina, magnetometer yolumikizidwa ndi barometer. Ma IMU amagwiritsidwa ntchito poyesa kuthamanga kwa chinthu, liwiro la angular, momwe chilili, ndi komwe chikupita, kupereka chidziwitso chodziyimira pawokha choyendera.