公开(公告)号：AU560298B2

公开(公告)日：1987-04-02

申请号：AU4822985

申请日：1985-09-30

Applicant: CSELT CENTRO STUDI LAB TELECOM

Inventor： ARDUINI CARLO ,  BARBONI RENATO ,  BIELLI PAOLO ,  CASTELLANI ANTONIO ,  CONTU SALVATORE ,  PONZI UGO

IPC: H01Q15/14 ,  H01Q5/00 ,  H01Q15/00 ,  H01Q15/24 ,  H01Q25/00 ,  H01Q15/16 ,  H01Q19/19

公开(公告)号：IT1160916B

公开(公告)日：1987-03-11

申请号：IT6954078

申请日：1978-11-06

Applicant: CSELT CENTRO STUDI LAB TELECOM

Inventor： BIELLI PAOLO ,  PADOVA SALVATORE ,  SAVINI DARIO

IPC: G01S3/42 ,  G01S3/14 ,  H01Q20060101 ,  H01Q25/04 ,  H01Q

Abstract: A tracking system is for a satellite emitting microwave signals from a beacon. The signals are circularly or linearly polarised. A ground antenna passes a signal received to a circular waveguide propagating the higher order TE21 mode. Two pairs of longitudinal slots (A, A'; B, B') on two planes passing through the waveguide axis which planes are angularly spaced from each other by pi/4 radians. The signals of each pair of slots are subtracted. The resulting difference signals are processed to provide signals representing the satellite position in a system of Cartesian coordinates (x, y, z). The angle (theta) which the reference plane containing two axes (x, z) of the system defines with that plane through a first pair of slots (A, A') is caused to equal half the angle defined between the plane of polarisation of the satellite signal and the reference plane, for a linearly-polarised signal.

公开(公告)号：IT7868069D0

公开(公告)日：1978-05-11

申请号：IT6806978

申请日：1978-05-11

Applicant: CSELT CENTRO STUDI LAB TELECOM

Inventor： BIELLI PAOLO ,  PADOVA SALVATORE DE

IPC: H01Q13/02 ,  H01Q17/00 ,  H01Q19/13 ,  H01Q