Patent Document ID: 20020113729
Application ID: 10021432
Patent Status: 0

Claim One:
1. Method for calculating the range to a moving object by means of a sensor capable of determining the angle to the object, in which the sensor and the object have a movement relative to one another, comprising the following after a measurement: on the assumption that the target maintains a constant velocity, a number of possible target ranges are calculated, as well as areas of uncertainty associated with these ranges, so-called “straight trajectory models” ( 410, 411, 412 ), on the assumption that the target accelerates, a number of possible target ranges are calculated, as well as areas of uncertainty associated with these ranges, so-called “manoeuvring models” ( 420, 421, 422 ), a number of the straight trajectory models having a manoeuvring model assigned to them, the method being characterized in that: in calculating the target range in the straight trajectory models ( 410, 411, 412 ) that have associated manoeuvring models ( 420, 421, 422 ), data from the respective manoeuvring model is incorporated to a predetermined extent if the probability that the target manoeuvres exceeds a predetermined limit, the range of the target from the sensor is deemed to be a weighted average of a number of ranges of the straight trajectory models ( 410, 411, 412 ), the weighting being based on the probability of each straight trajectory model.