A METHOD FOR THE AUTOMATIC CALIBRATION OF AN OPERATIONAL PASSIVE ACOUSTIC LISTENING SYSTEM

摘要

The realization synchronous relative to clock includes the listening system for listening to radio station during calibration hearing assistance system, and the microphone of receiver identity is located at each radio reception station for scouting enemy's electronic equipment position. These parameters, which pass through, utilizes a kind of method,For automatic Calibration, special correction signal is sent using one or more sound generators. Each sound generator in geographical location includes that calibration must be known by listening system, is the listening system in the microphone for crying the place and sight that can be audible. The present invention is that although this listening system is used for determining that the direction is mobile or the position voice signal of origin for a kind of correctly calibration passive acoustic listening system. The automatic clock, which synchronizes, listens to the alternative sounds that radio station is important exactly determined direction and/or position and origin. Long-time stability and accuracy listening system and the fixed characteristic with adjustment clock alignment microphone. It can support to correct from the producer of microphone speaker characteristic. The calibration can be used for interception system and work in 2 or 3 geographical scales, and can be performed or continuous or periodically.