硬件延迟标定方法、装置、电子设备及存储介质
By using the carrier phase single-difference expectation value and statistical analysis method, the error problem of low-cost antennas in satellite signal reception was solved, the accurate calibration of hardware delay was achieved, and the measurement error was reduced.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- AEROSPACE INFORMATION RES INST CAS
- Filing Date
- 2023-05-19
- Publication Date
- 2026-07-17
AI Technical Summary
The phase difference and measurement errors introduced by low-cost antennas when receiving satellite signals, especially antenna phase center error, cable delay error and multipath effect, are difficult to effectively calibrate and eliminate.
The hardware delay data for each epoch is determined based on the carrier phase single difference expectation value, carrier phase observation value, carrier single difference ambiguity, and clock difference. The data is then filled into the sky map grid under the northeast sky coordinate system, and statistical analysis is performed to determine the hardware delay calibration value.
It effectively reduces the error caused by the change of antenna phase center with incident angle, reduces the impact of cable delay and multipath effect, and achieves efficient and accurate hardware delay calibration.
Smart Images
Figure CN116819569B_ABST