US Patent Issued to Tsinghua University on June 30 for "Method and apparatus for measuring relative position of spacecraft based on GNSS difference" (Chinese Inventors)

ALEXANDRIA, Va., July 16 -- United States Patent no. 12,669,620, issued on June 30, was assigned to Tsinghua University (Beijing).

"Method and apparatus for measuring relative position of spacecraft based on GNSS difference" was invented by Zhaokui Wang (Beijing) and Yingkai Cai (Beijing).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present application provides a method and an apparatus for measuring a relative position of a spacecraft based on GNSS difference. The method includes: acquiring a first long-wave observation combination and a second long-wave observation combination; performing a double-difference ambiguity of whole cycles search according to a pseudo-range double-difference linear equation...