大角度俯冲攻击下的卫星定位精度新息修正方法
By collecting baseline accuracy data in level flight and performing satellite positioning simulations under steep dive attacks, pseudorange corrections were made using pseudorange corrections, thus solving the problem of deteriorated positioning accuracy of satellite navigation receivers during dive attacks and achieving higher positioning accuracy.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- BEIJING AUTOMATION CONTROL EQUIP INST
- Filing Date
- 2023-11-15
- Publication Date
- 2026-07-17
AI Technical Summary
The problem of deteriorated positioning accuracy caused by changes in the orientation of satellite antennas during a carrier dive attack.
The positioning accuracy of the differential satellite receiver in level flight mode is used as a benchmark. Level flight tests are conducted in an open environment using a navigation satellite receiver to obtain test data. Positioning calculation simulation is performed. Satellites with PDOP values of 6-7 are selected to perform positioning calculations under high-angle dive attack conditions. The simulation positioning accuracy error is compared. Pseudorange correction is used to correct the pseudorange for positioning calculation to obtain the satellite positioning accuracy.
It effectively corrects the positioning error caused by the excessive PDOP value of the satellite navigation receiver due to the pitch angle problem during the carrier's dive attack, thus improving the positioning accuracy.
Smart Images
Figure CN117607925B_ABST