Results 31 to 40 of about 30,390 (243)
Approximate maximum likelihood estimation of two closely spaced sources [PDF]
, 2014 The performance of the majority of high resolution algorithms designed for either spectral analysis or Direction-of-Arrival (DoA) estimation drastically degrade when the amplitude sources are highly correlated or when the number of available snapshots is
Chaumette, Eric +2 more
core +1 more source
Large Direction-of-Arrival Mismatch Correction for Adaptive Beamforming
IEEE Access, 2022 Direction-of-arrival (DOA) mismatch can degrade the performance of adaptive beamforming algorithms. Thus, a projection method is proposed to correct this mismatch.
Lin Chang +4 more
doaj +1 more source
Gridless DOA Estimation With Multiple Frequencies
IEEE Transactions on Signal Processing, 2023 Direction-of-arrival (DOA) estimation is widely applied in acoustic source localization. A multi-frequency model is suitable for characterizing the broadband structure in acoustic signals. In this paper, the continuous (gridless) DOA estimation problem with multiple frequencies is considered.
Yifan Wu 0015 +2 more
openaire +4 more sources
Advanced Science, EarlyView.A conserved genomic region between two streptavidin genes in Streptomyces packages biosynthetic gene clusters for diverse biotin‐pathway antibiotics: acidomycin, stravidin, the new non‐proteinogenic amino acid ANDA, and the new BioA inhibitor α‐methyl‐KAPA.
Sumire Kurosawa +8 more
wiley +1 more source
Improved scheme for clutter rejection and DOA estimation in passive radar
The Journal of Engineering, 2019 Targets are hard to be detected by passive radars unless clutter, namely direct-path signal and multi-path signal, is suppressed. The subcarrier-based spatial adaptive processing is a high-performance spatial-domain clutter rejection algorithm.
Ke Wang +3 more
doaj +1 more source
Advanced Science, EarlyView.A real‐time, non‐contact photoplethysmography (PPG) system based on InAs colloidal quantum dots (CQDs) synthesized via a seedless injection synthesis is demonstrated. The measured oxygen saturation shows considerable agreement with commercial PPG devices.
Beom Kwan Kim +8 more
wiley +1 more source
Phân tích hiệu suất của các phương pháp ước lượng DoA cho các hệ thống sử dụng ADC phân giải thấp
Tạp chí Khoa học và Công nghệƯớc lượng hướng đến (Direction of Arrival – DoA) là một nhiệm vụ cốt lõi trong xử lý tín hiệu mảng, đóng vai trò thiết yếu trong các ứng dụng như radar, sonar và truyền thông không dây. Để giảm độ phức tạp phần cứng, chi phí và tiêu thụ điện năng, các bộ
Vien Nguyen-Duy-Nhat, Hung Nguyen-Le
doaj +1 more source
Advanced Energy Materials, EarlyView.Thin‐shell InAs/ZnSe quantum dots functionalized with metal chalcogenide ligands were employed as electron transport layers in organic optoelectronic devices, yielding optimized conduction band alignment and film morphology. Consequently, the devices achieved enhanced charge transport, a detectivity of ∼1013 Jones, and a power conversion efficiency of ...
Yonghoon Choi +8 more
wiley +1 more source
The Journal of Engineering, 2019 For the problem of the direction-of-arrival (DOA) and source number estimations with coexisting strong and weak signals, a new method for robust estimations of DOA and the number of sources based on an optimized broad band sparse array is proposed.
Qingyan Liu +4 more
doaj +1 more source
A MSWF root‐MUSIC based on Pseudo‐noise resampling technique
Electronics Letters, 2021 This paper uses the shift‐invariance property of uniform linear array in root‐MUSIC estimator for obtaining signal and noise subspaces by applying multistage Wiener filter (MSWF) procedure.
M. Johnny, M. R. Aref
doaj +1 more source