loading page

An on-orbit calibration method for time delay of inter-satellite link transponder in TDRS
  • Lei Wang,
  • Xiang Chen
Lei Wang
Tsinghua University

Corresponding Author:wangleibsir@163.com

Author Profile
Xiang Chen
Sun Yat-Sen University School of Electronics and Information Technology
Author Profile


The tracking and data relay satellite (TDRS) in the geosynchronous orbit (GEO) is capable of providing ranging and communication services for user spacecraft in low Earth orbit (LEO) through the inter-satellite link (ISL). The time delay of TDRS’ ISL transponder in orbit differs from that before launch and changes due to complex space environment, which contributes non-negligible errors to user spacecraft’s orbit determination based on the four-way ranging data. We construct a calibration system and propose an efficient on-orbit calibration method for time delay of ISL transponder in TDRS. Experimental results verify the effectiveness of the proposed method and the RMS of calibration residuals is less than 0.5 meters.
01 Mar 2023Submitted to Electronics Letters
02 Mar 2023Assigned to Editor
02 Mar 2023Submission Checks Completed
09 Mar 2023Reviewer(s) Assigned