Patent ID: 7397352

Claim:
A method of localizing a position of at least two emission units, which comprises: (a) assigning a portion N of the emission units to a first transmitter group and assigning another portion M of the emission units to a second transmitter group, and assigning a local region to each transmitter group; (b) detecting transmission signals emitted by the emission units with a receiver antenna of a receiver unit of an evaluation and control unit; (c) wherein a reception power of the reception signals from the emission units of the first transmitter group is in each case appreciably higher than a reception power of the reception signals from the emission units of the second transmitter group over a long time span in each case; (d) averaging the reception power of at least two reception signals over a predetermined time span or a predetermined number of discretely scanned values of the reception power or over a predetermined number of intermittently transmitted signals; (e) allocating N reception signals with N highest average values or the respective emission units to the first transmitter group, and allocating M reception signals with M lowest average values or the respective emission units to the second transmitter group; (f) determining the reception signal of the first transmitter group with a smallest average value and the reception signal of the second transmitter group with a highest average value, and comparing a difference in amount of the smallest and highest average values or a ratio thereof with a predetermined reliability threshold value; (g) accepting the allocation of the reception signals or the respective emission units of the first or second transmitter groups or the local regions allocated thereto as being correct only if the difference in amount or the ratio of the average values is greater than the reliability threshold value; and (h) if the difference in amount or the ratio of the average value is less than the reliability threshold value, using at least one additional decision criterion for allocating the reception signals or the respective emission units to the transmitter groups or the local regions thereof, and/or an additional criterion for testing a reliability of a correct allocation.