公开(公告)号：US09331775B2

公开(公告)日：2016-05-03

申请号：US14060776

申请日：2013-10-23

Applicant: ASTRIUM SAS

Inventor： Mathieu Picard ,  Alexandre Mege

IPC: H04B7/185

CPC classification number: H04B7/18523 ,  H04B7/18517

Abstract: A method (50) for detecting broadcast signals, transmitted by terrestrial sources (40) and received by a satellite (20), in individual signals obtained respectively from different individual antennas (24) of an antenna array (22) of the satellite, includes a first detection iteration (51a) and a second detection iteration (51b), each of the first and second detection iterations including a step (52) of forming, from the individual signals, virtual beams of different respective main radiation directions, and a step of searching for the presence of broadcast signals in the virtual beams. Furthermore, for at least one broadcast signal detected during the first detection iteration, the respective contributions of the at least one detected broadcast signal to the different individual signals are attenuated, relative to the first detection iteration, for all or part of the virtual beams formed during the second detection iteration. A system (10) for detecting broadcast signals is also described.

Abstract translation: 一种用于检测由卫星（20）接收的地面源（40）发射并由卫星的天线阵列（22）分别获得的各个信号中获得的各个信号的广播信号的方法（50），包括： 第一检测迭代（51a）和第二检测迭代（51b），第一和第二检测迭代中的每一个包括从各个信号形成不同的各个主辐射方向的虚拟波束的步骤（52） 搜索虚拟光束中的广播信号的存在。 此外，对于在第一检测迭代期间检测到的至少一个广播信号，至少一个检测到的广播信号对不同的各个信号的相应贡献相对于第一检测迭代被衰减，用于形成的所有或部分虚拟波束 在第二次检测迭代期间。 还描述了一种用于检测广播信号的系统（10）。