Inter-Channel Error Calibration Method for Real-Time DBF-SAR System Based on FPGA
Yao Meng, Jinsong Qiu, Pei Wang, Yang Liu, Zhen Yang, Yihai Wei, Xuerui Cheng, Yihang Feng · 2025
Read Inter-Channel Error Calibration Method for Real-Time DBF-SAR System Based on FPGA by Yao Meng, Jinsong Qiu, Pei Wang, Yang Liu, Zhen Yang, Yihai Wei, Xuerui Cheng, Yihang Feng (2025) in the Tower of Babel, a free online library of public-domain works preserved in clean, searchable text. No sign-up. The full text is served as a plain-text file at a predictable URL, where text is present: https://antarctic-labs.com/tower-of-babel/pmc-12736965.txt.
Description
Yao Meng and seven co-authors solve a calibration headache for radar satellites that form their beams digitally across many channels, in this 2025 paper. Such systems image wide swaths sharply, but each channel drifts in strength, phase, and timing, and correcting the drift on board must fit tight hardware limits. Their method performs the heavy math once, at startup.
Fast Fourier pulse compression anchors the calibration, and a dual mode design separates setup from routine operation. Settings persist, so the running system applies cheap corrections in a closed loop. On a high performance programmable chip, a four channel test lifted the combined signal quality by about six decibels, nearly the ideal gain. The authors present the scheme as engineering support for next generation radar satellites.
Catalog record
| CREATOR | Yao Meng, Jinsong Qiu, Pei Wang, Yang Liu, Zhen Yang, Yihai Wei, Xuerui Cheng, Yihang Feng |
|---|---|
| YEAR | 2025 |
| COLLECTION | PAPERS |
| FORMAT | TXT |
| FILE SIZE | 34 KB |
| VERSION | 1.0 |
| LICENSE | CC BY 4.0 |
| RIGHTS | CC BY |
| SOURCE | Europe PMC |