Results 21 to 30 of about 1,405 (223)

Modelling OTHR tracks for association and fusion

Proceedings of the 1996 IEEE National Radar Conference, 2002
The Jindalee high frequency OTH radar network sensors are capable of detecting and tracking a very large number of tracks within surveillance regions that can overlap. The large number of tracks can lead to ambiguity especially on the regions boundaries.
G. Habermann, R.E. Bogner, M. Mohandes, A. Cameron   +3 more
core   +2 more sources

Method to suppress transient interference in skywave OTHR

Electronics Letters, 2015
In skywave over‐the‐horizon radar (OTHR), transient interference is always suppressed with steps of interference localisation, corruption segment blanking and data restoration. The gapped data amplitude and phase estimation (GAPES) method has been proved to achieve good restoration performance.
Ziwei Liu, Hongtao Su, Qinzhen Hu
exaly   +2 more sources

Research on ionospheric phase decontamination for OTHR

2014 XXXIth URSI General Assembly and Scientific Symposium (URSI GASS), 2014
Ionospheric phase decontamination is a key step to detect ship targets for OTHR. A PGA algorithm based on adaptive clutter filter bandwidth extraction is proposed for small amplitude, slowly varying type phase contamination that can be used to solve clutter filter bandwidth selection.
Xue Li, Dongsheng Yang, Na Wei, Rui Wang
core   +2 more sources

Electromagnetic modelling of ship classification in OTHR

2008 8th International Symposium on Antennas, Propagation and EM Theory, 2008
Because of the Faraday rotation effect in the ionosphere, the elliptical polarization high frequency electromagnetic wave is used to simulate the sky wave to illuminate the ship targets. The half space FDTD method is utilized to model the ship targets on ocean which have the similar structures.
null Huotao Gao, null Cong Chen
core   +2 more sources

PDAF versus PMHT performance on OTHR data

2003 Proceedings of the International Conference on Radar (IEEE Cat. No.03EX695), 2004
Over the Horizon Radar (OTHR) is the primary Australian wide area surveillance sensor. The radar tracking system currently used for OTHR is based on the Probabilistic Data Association Filter (PDAF). Research and development(R&D)has continued to improve tracking performance. R&D has been extended to include the Probabilistic Multiple Hypothesis Tracker (
B. Cheung, S.J. Davey, S.B. Colegrove
core   +2 more sources

OTHR-07 A DESCRIPTIVE EPIDEMIOLOGICAL PROFILE OF BRAIN TUMOURS IN CAMEROON [PDF]

Neurooncol Adv
Asong Atemlefac, T Asonganyi, Ekokobe Fonkem   +2 more
europepmc   +3 more sources

OThR - Optical transmission systems

OFC/NFOEC Technical Digest. Optical Fiber Communication Conference, 2005., 2005

core   +2 more sources

OTHR-04. HEALTH SYSTEM DELAYS IN DIAGNOSIS AND TREATMENT OF CHILDREN WITH CENTRAL NERVOUS SYSTEM (CNS) TUMOURS IN SRI LANKA [PDF]

Neuro Oncol
Mahendra Somathilaka, Ashika Jayathilaka, D.P.A.R.N. Jayasekera, Mohomad I M Azwer, Nilrukshan Jayaweera, Sanjeewa Garusinghe, M. M. A. Jayawickrama, Roshana Constantine, Tejpal Gupta, Girish Chinnaswamy, Santhosh A. Upadhyaya, Zeena Salman, Ibrahim Qaddoumi, Sanjeeva Gunasekera   +13 more
europepmc   +3 more sources

OTHR-07. LIFE THREATENING CATATONIA AND THE USE OF ELECTROCONVULSIVE THERAPY IN A PATIENT WITH RELAPSED MEDULLOBLASTOMA [PDF]

Neuro Oncol
Stanley Chaleff, Roselyn Gerwin, Lee Wolfrum, Pamela Bokat, Nadav Kastle   +4 more
europepmc   +3 more sources

OTHR-04 PATIENT SATISIFACTION WITH NURSING CARE AMONG PEDIATRIC CANCER PATIENTS ATTENDING UGANDA CANCER INSTITUTE MULAGO KAMPALA UGANDA [PDF]

Neurooncol Adv
Beatrice Rukundo
europepmc   +2 more sources