Results 71 to 80 of about 2,198 (176)
Research on 2-D Direction of Arrival (DOA) Estimation for an L-Shaped Array
Remote SensingLately, there has been a significant increase in interest in coprime array configurations, as they offer the advantage of generating more extensive array apertures and enhanced degrees of freedom when contrasted with standard linear arrays. This document introduces an innovative two-dimensional direction-of-arrival (2-D DOA) estimation technique ...
Kun Ye +4 more
openaire +2 more sources
Stability of Lead‐Free Perovskite Solar Cells
Advanced Sustainable Systems, Volume 10, Issue 3, March 2026.This review article discusses the very recent status of stability of lead‐free perovskite solar cells, possible challenges, fabrication techniques, the degradation mechanism of lead‐free PSCs affecting stability, possible causes hindering the simultaneous improvement of efficiency and stability of lead‐free PSCs, potential outlook, and future research ...
Pranta Barua +4 more
wiley +1 more source
Near-Field Monopulse DoA Estimation for Angle-Sensitive Proximity WiFi Readers
IEEE Access, 2019 We study the effect of close-proximity in the estimation of the Direction-of-Arrival (DoA) using a monopulse antenna array system, with application to angle-sensitive proximity WiFi readers.
Jose Antonio Lopez-Pastor +4 more
doaj +1 more source
Rigid Hollow Microparticles for Enhanced Focused Ultrasound Treatment Under Optoacoustic Guidance
Advanced Science, Volume 13, Issue 13, 3 March 2026.By combining focused ultrasound (FUS) and acoustically active hollow borosilicate microparticles (HBMPs), we demonstrate tunable control over interparticle dynamics and their localized thermal energy deposition. Modulation of acoustic frequency and particle concentration tailors the energy delivery, allowing adaptive, material‐based regulation of ...
Nima Mahkam +6 more
wiley +1 more source
Remote Sensing, 2017 High-frequency (HF) radars are routinely used for remotely sensing ocean surface currents. However, the performance of the most widely used direction-finding HF radar is degraded due to the effect of the inevitable deviations of actual antenna pattern on
Yeping Lai +3 more
doaj +1 more source
Effects of reference sound speed on underwater acoustic direction-of-arrival estimation with horizontal plane array [PDF]
JASA Express LettersDirection-of-arrival (DOA) estimation of an underwater acoustic target is usually dependent on the selection of reference sound speed. For a horizontal line array, severe error of DOA estimation is induced when reference sound speed diverges from phase ...
Feitong Chen +6 more
doaj +1 more source
Satellite Interference Source Direction of Arrival (DOA) Estimation Based on Frequency Domain Covariance Matrix Reconstruction. [PDF]
Sensors (Basel), 2023 Yao J +5 more
europepmc +1 more source
Direction of Arrival (DOA) Estimation in an Array of Antennas using Derivative-Free Methods
International Journal of Computer Applications, 2015 In this paper, direction of arrival estimation has been addressed using derivative free methods and their hybrid procedure in antenna array signal processing. The problem has been formulated in the root mean square error sense by considering the single snapshot.
Junaid Ali Khan +2 more
openaire +1 more source
DOA Estimation Based on Real-Valued Cross Correlation Matrix of Coprime Arrays
Sensors, 2017 A fast direction of arrival (DOA) estimation method using a real-valued cross-correlation matrix (CCM) of coprime subarrays is proposed. Firstly, real-valued CCM with extended aperture is constructed to obtain the signal subspaces corresponding to the ...
Jianfeng Li, Feng Wang, Defu Jiang
doaj +1 more source
SensorsIn recent years, one-bit quantization has attracted widespread attention in the field of direction-of-arrival (DOA) estimation as a low-cost and low-power solution.
Rui Li +5 more
doaj +1 more source