| 摘要 |
The installation of a listening system is achieved without measuring the distances or the directions between the listening stations. These parameters are automatically calculated by utilising a method for automatic installation calibration. Approximate values for the relative positioning and direction can also be entered to support the calibration calculations. The invention is a method for the correct calibration of a passive acoustic listening system when such a listening system is used for the determination of the direction to or the positioning of the origin of sound signals. The calibration can be utilised for listening systems working in 2 or 3 geographical dimensions. The method is valid for the installation of a listening system consisting of at least 2 listening stations, together including at least 4 microphones. The relative distance between the listening stations and the relative direction to each listening station is calculated. The clock synchronising of each listening station is also determined. The complete calibration is performed by the repositioning of a sound generator to a series of geographical positions, unknown to the listening system. In each position, the sound generator transmits a characteristic sound. |
