Results 61 to 70 of about 139,241 (237)
Tạp chí Khoa học và Công nghệBài báo này đề xuất một mô hình anten 2 cổng hoạt động ở dải tần số 24-28 GHz cho các ứng dụng 5G tần sóng millimet. Anten được thiết kế dựa trên kỹ thuật ống dẫn sóng tích hợp kết hợp một khe hình chữ L có gắn phần tử chủ động (PIN đi-ốt) cho khả năng ...
Nguyễn Trương Khang +2 more
doaj +1 more source
Parallel Vector Processing in Optical Computing With Jacobi Time‐Wave Packets
Laser &Photonics Reviews, EarlyView.Functionality of a single neuron and state of the art photonic acceleration with a Mach‐Zehnder‐interferometer (MZI) mesh (i), a crossbar array (ii) and a micro ring resonator (MRR) array (iii). In the proposed Jacobi time‐wave packet approach (iv) a single modulator (here a ring modulator) is performing the whole scalar vector product in a single ...
Janosch Meier +5 more
wiley +1 more source
The MIMO-OTFS Technique in the Next 6G Communications
Engineering AccessThe orthogonal time-frequency space (OTFS) technique is a promising method of waveform modulation that encodes data in the delay-doppler (DD) domain. OTFS distinguishes itself from conventional multiplexing methods by employing two-dimensional modulation
Ali J. Ramadhan, Ali Taei Zadeh
doaj +1 more source
INVESTIGATION OF FADING IN THE COMMUNICATION SYSTEM USING OFDM TECHNOLOGY
Радіоелектронні і комп'ютерні системи, 2018 A new technique exploited for estimating of fading influence in multipath signal propagation environment for communication system using OFDM (Orthogonal frequency-division multiplexing) technology is proposed.
Алексей Андреевич Бреславец +1 more
doaj +1 more source
International Journal of Mechanical System Dynamics, EarlyView.ABSTRACT The design of control systems for high‐agility mechanical systems operating in extreme environments is a significant challenge in nonlinear dynamics. This paper addresses the complex dynamic control problem of a hypersonic interceptor, modeled as a multi‐input multi‐output (MIMO) mechanical system characterized by strong aerodynamic cross ...
Mohammad Mahdi Soori +1 more
wiley +1 more source
Declaración Universal de Derechos Lingüísticos
Revista Iberoamericana de Educación, 1997 Entre los días 6 y 8 de junio de 1996 se reunieron en Barcelona, España, 61 ONGs, 30 Centros PEN y 40 expertos en derecho lingüístico de todo el mundo.
Oriol Ramón i Mimó
doaj
Capacity comparison of MIMO and cooperative MIMO
International Journal of Engineering & Technology, 2017 To achieve high capacity and high data rates is the main requirement for today’s generation. This paper studies about the performance and capacity comparison of MIMO and cooperative MIMO systems. The comparison of capacity between multiple- input- multiple- output (MIMO) and cooperative MIMO systems helps us to know that which system have better ...
Ashish Kumar Sarangi +2 more
openaire +2 more sources
Sliding Mode Control in Aerospace Applications: A Survey
International Journal of Robust and Nonlinear Control, EarlyView.ABSTRACT Sliding mode control (SMC) enjoys robustness to matched and unmatched (in the case of minimum phase input‐output dynamics) bounded perturbations, and finite time convergence. Second‐order and higher‐order sliding mode control systems (2‐SMC/HOSMC) retain all the advantages of sliding mode control, but in addition can be applied to systems of ...
Yuri Shtessel, Christopher Edwards
wiley +1 more source
Jaume Vernet i Llobet, «Normalització lingüística i accés a la funció pública»
Revista de Llengua i Dret - Journal of Language and Law, 1992 .
Oriol Ramon i Mimó
doaj
High‐Order Sliding‐Mode control for MIMO Systems
International Journal of Robust and Nonlinear Control, EarlyView.ABSTRACT This paper extends Lyapunov‐based homogeneous high‐order sliding‐mode control to a class of uncertain non‐square multi‐input multi‐output (MIMO) nonlinear systems with a well‐defined vector relative degree. The considered systems admit a normal‐form representation with an uncertain but full‐row‐rank input‐gain matrix.
Jaime A. Moreno, Angel Mercado‐Uribe
wiley +1 more source