公开(公告)号：US20240135121A1

公开(公告)日：2024-04-25

申请号：US18543631

申请日：2023-12-18

Applicant: SOOCHOW UNIVERSITY

Inventor： Zhe LI ,  Wei DENG

IPC: G06K7/10 ,  H04B7/02 ,  H04B7/08

CPC classification number: G06K7/10366 ,  H04B7/028 ,  H04B7/0831

Abstract: This application discloses a tag quantity estimation system and method of RFID. A processor-readable medium was disclosed at the same time. This estimation method applies a spatial diversity gain existing in a multi-antenna system. Separated and sequentially stacked the real parts and the imaginary parts of the multiple signals received by multiple antennas. Then, a tag quantity estimation problem is converted into a data clustering problem in high-dimensional space. In this way, the overlapped cluster data in low-dimensional space can be separated in the high-dimensional space, thereby improving the accuracy of tag quantity estimation.

公开(公告)号：US20220207250A1

公开(公告)日：2022-06-30

申请号：US17437590

申请日：2021-03-09

Applicant: SOOCHOW UNIVERSITY

Inventor： Zhe LI ,  Wei DENG

IPC: G06K7/10 ,  G06K9/62 ,  G06K19/07

Abstract: This application discloses a tag quantity estimation system and method of RFID. A processor-readable medium was disclosed at the same time. This estimation method applies a spatial diversity gain existing in a multi-antenna system. Separated and sequentially stacked the real parts and the imaginary parts of the multiple signals received by multiple antennas. Then, a tag quantity estimation problem is converted into a data clustering problem in high-dimensional space. In this way, the overlapped cluster data in low-dimensional space can be separated in the high-dimensional space, thereby improving the accuracy of tag quantity estimation.