一种机载异构传感器偏差校准方法、介质及终端
By establishing an airborne sensor deviation and noise model within a unified framework and combining it with a pseudo-measurement method to achieve rapid deviation calibration of airborne heterogeneous sensors, the problem of decreased positioning accuracy of airborne sensors was solved, and positioning accuracy and system stability were improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- NAT UNIV OF DEFENSE TECH
- Filing Date
- 2023-08-29
- Publication Date
- 2026-07-17
AI Technical Summary
Existing airborne sensor deviation calibration methods fail to effectively handle the influence of platform parameters in airborne sensor measurements, leading to a decrease in positioning accuracy. In particular, they cannot achieve fast and accurate deviation calibration when there are changes in nonlinearity and noise covariance.
Based on the airborne camera and radar observation model, a deviation and noise model is established under a unified framework. Rapid deviation calibration of airborne heterogeneous sensors is achieved through linear decoupling and pseudo-measurement method. A unified airborne sensor observation model is used to transform the measurements of each sensor to a unified world coordinate system, and deviation calibration is performed in combination with pseudo-measurement method.
It significantly improves the performance of multi-sensor deviation calibration and joint target positioning accuracy, approaching the positioning accuracy under deviation-free conditions, and improves the stability and accuracy of the sensor system.
Smart Images
Figure CN117109634B_ABST