Results 21 to 30 of about 39,876 (186)
Bearing Estimation Using Double Frequency Reassignment for a Linear Passive Array
Polish Maritime Research, 2017 The paper demonstrates the use of frequency reassignment for bearing estimation. For this task, signals derived from a linear equispaced passive array are used.
Czarnecki Krzysztof, Leśniak Wojciech
doaj +1 more source
Allah Memanggil Umat-Nya Untuk Menjadi Gereja Yang Tekun Berdoa Menurut Kisah Para Rasul 4: 23 – 31
Dunamis: Jurnal Teologi dan Pendidikan Kristiani, 2016 Doa merupakan sebuah aktivitas yang erat hubungannya dengan denyut nadi kekristenan; sehingga muncul semacam ungkapan, bahwa doa adalah nafas kehidupan orang percaya.
Daniel Sutoyo
doaj +1 more source
Machine-Learning-Aided Massive Hybrid Analog and Digital MIMO DOA Estimation for Future Wireless Networks [PDF]
Radioengineering, 2023 Due to a high spatial angle resolution and low circuit cost of massive hybrid analog and digital (HAD) multiple-input multiple-output (MIMO), it is viewed as a valuable green communication technology for future wireless networks.
X. Zhao +11 more
doaj
Introduction to Coastal HF Maritime Surveillance Radars
Polish Maritime Research, 2019 This paper presents the main technical characteristics and working performances of coastal maritime surveillance radars, such as low-power High-Frequency Surface Wave Radars (HFSWR) and Over the Horizon Radars (OTHR). These radars have demonstrated to be
Ilcev Dimov Stojce
doaj +1 more source
Source separation and localisation via tensor decomposition for distributed arrays
The Journal of Engineering, 2019 This study focuses on the problem of power spectra separation and localisation of multiple sources using distributed arrays. First, the array structure and signal model are discussed. By cross-correlating the multi-channel received signals in time-domain,
Yuanbing Cheng, Yapeng He
doaj +1 more source
陆军军医大学学报, 2023 Objective To understand the current status of application of depth of anesthesia (DoA) monitors used by anesthesiologists in China and evaluated its validity.
WANG Lu, GUO Yang, LI Hon, ZHAN Jian
doaj +1 more source
Advanced array processing techniques and systems [PDF]
, 2009 Research and development on smart antennas, which are recognized as a promising technique to improve the performance of mobile communications, have been extensive in the recent years.
Li, M.
core +3 more sources
Advanced Healthcare Materials, EarlyView.Living donor heart valves offer superior durability for pediatric patients but trigger immune rejection. Lentiviral delivery of viral immune‐evasion genes US2 and Serpin b9 into donor valve cells and valve tissue suppresses HLA expression, reduces PBMC clustering and cytotoxic killing, and induces transcriptional immune‐tolerance programs, paving the ...
Abraham van Wijk +11 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
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