Zobrazeno 1 - 10
of 8 145
pro vyhledávání: '"Array Signal Processing"'
Publikováno v:
IET Radar, Sonar & Navigation, Vol 18, Iss 11, Pp 2295-2307 (2024)
Abstract To address the challenges of large‐aperture sonar systems passive localisation, this paper proposes the application of sparse Bayesian learning (SBL) for passive target localisation in the wideband beam domain. The proposed algorithm aims
Externí odkaz:
https://doaj.org/article/9bf1490a73c947c09eaa02dc003a7b03
Publikováno v:
IET Radar, Sonar & Navigation, Vol 18, Iss 11, Pp 2170-2181 (2024)
Abstract Main lobe deceptive jamming always causes the serious degradation of signal detection ability and angle measurement precision of monopulse radar. In recent years, the Blind Source Separation (BSS) method has been adopted to suppress the main
Externí odkaz:
https://doaj.org/article/e814ea4c55184819946794f8cbc96ea8
Publikováno v:
IET Radar, Sonar & Navigation, Vol 18, Iss 10, Pp 1829-1836 (2024)
Abstract Aiming at the problem that the overlapping of multipath signals seriously affects the radar's performance of the elevation angle estimation for low‐altitude targets, the authors combine the unitary ESPRIT (UESPRIT) and the multi‐input an
Externí odkaz:
https://doaj.org/article/fd7019cb769849b4b95250c94ad4d716
Publikováno v:
IET Radar, Sonar & Navigation, Vol 18, Iss 10, Pp 1837-1847 (2024)
Abstract Unmanned Aerial Vehicles (UAVs) are widely used in both military and civilian sectors due to their maneuverability and versatility. However, UAVs rely on the Global Navigation Satellite System (GNSS) for real‐time accurate navigation and a
Externí odkaz:
https://doaj.org/article/1a0e7e761fc84bc49da53cded3f8b773
Publikováno v:
IET Radar, Sonar & Navigation, Vol 18, Iss 10, Pp 1625-1637 (2024)
Abstract The sparse Bayesian learning (SBL) algorithm has demonstrated its advantage in the direction of arrival (DOA) estimation. However, it requires a lot of computational cost to iteratively estimate the SBL hyperparameters from measurement data.
Externí odkaz:
https://doaj.org/article/43eca8b148ba4814b839740d879b825a
Publikováno v:
IET Microwaves, Antennas & Propagation, Vol 18, Iss 10, Pp 791-800 (2024)
Abstract To get simultaneously sparse and constant modulus excitation to reduce the complexity of the array and the mutual effect of neighbouring elements, a novel algorithm via alternating optimisation‐alternating direction of the multipliers meth
Externí odkaz:
https://doaj.org/article/c1348c746b1844e39cbf2a92aa6d15db
Publikováno v:
IET Microwaves, Antennas & Propagation, Vol 18, Iss 8, Pp 571-577 (2024)
Abstract In the anti‐interference of broadband communication radio, interference cancellation performance is seriously affected by the uncertainty of the working frequency selection of the communication system and the direction of hostile interfere
Externí odkaz:
https://doaj.org/article/91f429e5fe804f859fbd0cf249986d95
Autor:
CAO Yongjie, MAO Weining
Publikováno v:
Zhihui kongzhi yu fangzhen, Vol 46, Iss 4, Pp 105-112 (2024)
Aiming at the problem of error in deep-sea DOA(Direction of Arrival, DOA) estimation based on plane wave sound field model, this paper establishes the array signal model of deep-sea DOA estimation under multipath channel based on ray theory. The char
Externí odkaz:
https://doaj.org/article/28744cb8b47a42f4a0579b62b6bbc0b0
Publikováno v:
IET Radar, Sonar & Navigation, Vol 18, Iss 7, Pp 1132-1144 (2024)
Abstract Beamforming is an effective way of resolving target direction and anti‐jamming in short wave (SW) radar systems. In conventional beamforming (CBF) at a certain frequency, to get high resolution, the array aperture should be increased, and
Externí odkaz:
https://doaj.org/article/4c1d084eb42a461ea4eff6101df3c563
Publikováno v:
IET Radar, Sonar & Navigation, Vol 18, Iss 6, Pp 866-875 (2024)
Abstract Nowadays, sparse arrays have been a focus for direction‐of‐arrival (DOA). The existing arrays can achieve high degree of freedom (DOF) bigger than the number of sensors when using the spatial smoothing methods. However, the small inter
Externí odkaz:
https://doaj.org/article/6ed132dd08524122ac2dcca5fb620d77