| 摘要 |
A method and system are described, for the remote monitoring of the two/three-dimensional field of displacements and vibrations of an object/structure. The method comprises the following steps: transmission of a plurality of radar waves by a plurality of corresponding radar devices positioned at a predefined distance from a plurality of corresponding receiver or target devices applied on the object/structure; obtaining a first distance value between each radar device and the corresponding receiver or target device, wherein the first distance value is affected by an error consisting of the sum between the electromagnetic propagation disturbance in the atmosphere of the radar waves and the reciprocal interference between the single receiver or target devices and one or more fixed reflectors positioned in the proximity of said receiver or target devices; obtaining, simultaneously with respect to the first distance value, a second distance value between each radar device and a plurality of corresponding calibration devices positioned at predefined distances from said radar devices, wherein the second distance value is affected by an error consisting only of the electromagnetic propagation disturbance in the atmosphere of the radar waves; estimating and removing the error consisting of the electromagnetic propagation disturbance in the atmosphere of the radar waves to obtain the second corrected distance value; estimating and removing the error consisting of the reciprocal interference between the single receiver or target devices and one or more fixed reflectors positioned in the proximity of said receiver or target devices, to obtain the first corrected distance value, which defines the entity of the spatial displacement of the object. |
