Facing the increasingly complex electromagnetic environment, the anti-jamming ability of navigation receiver can be improved by space-time-frequency domain filtering. The ability of space-time adaptive filter (STAF) and space-frequency adaptive filter (SFAF) anti-jamming receiver to suppress how much number of interferences is related not only to the number of array elements, but also to the characteristics of interference signals. In this paper, the anti-jamming degree of freedom characteristics of STAF/SFAF are obtained through theoretical derivation and numerical analysis. The relationship between spatial anti-jamming degree of freedom of array receiver and the characteristics of jamming signal bandwidth and central frequency point is fully elucidated and the quantitative expressions under different scenes are given.
Characteristic Analysis on Anti-jamming Degrees of Freedom of GNSS Array Receiver
Lect. Notes Electrical Eng.
China Satellite Navigation Conference ; 2022 ; Beijing, China May 22, 2022 - May 25, 2022
China Satellite Navigation Conference (CSNC 2022) Proceedings ; Kapitel : 43 ; 463-472
2022-05-07
10 pages
Aufsatz/Kapitel (Buch)
Elektronische Ressource
Englisch
Array receiver , Degree of freedom , Space-time adaptive filter , Space-frequency adaptive filter Engineering , Communications Engineering, Networks , Signal, Image and Speech Processing , Aerospace Technology and Astronautics , Control, Robotics, Mechatronics , Computer Applications , Geography, general