Patent ID: 6618324
Filing Date: 2003-09-09
Classification: G01S

Abstract:
A method for calculating a track quality indicator from a plurality of tracker amplitude estimates comprising the steps of:determining the track quality indicator at the previous time increment; assigning the track quality indicator as a lost track based on a first lost track threshold if the track quality, indicator at the previous time increment indicated a lost track and based on a second lost track threshold if the track quality indicator at the previous time increment indicated a different status; assigning the track quality indicator as an uncertain track based on a first uncertain track threshold if the track quality indicator at the previous time increment indicated a lost track or an uncertain track and based on a second uncertain track threshold if the track quality indicator at the previous time increment indicated a different status; assigning the track quality indicator as a low signal to noise ratio (SNR) track based on a first low SNR track threshold if the track quality indicator at the previous time increment indicated a strong track and based on a second low SNR track threshold if the track quality indicator at the previous time increment indicated a different status; assigning the track quality indicator as a strong track if another track quality indicator is not assigned; and continuing to the next time increment after the track quality indicator is assigned.