Results 21 to 30 of about 98,054 (260)
Design of Constant Modulus Radar Waveform for PSD Matching Based on MM Algorithm
Remote SensingThe power spectral density (PSD) shape of the transmit waveform plays an important role in some fields of radar, such as electronic counter-countermeasures (ECCM), target detection, and target classification.
Hao Zheng +3 more
doaj +1 more source
EURASIP Journal on Advances in Signal Processing, 2004 With sophisticated signal and information processing algorithms, air interfaces with space-time (ST) coding and multiple reception antennas substantially improve the reliability of wireless links.
Zhang Zhan, Ilow Jacek
doaj +1 more source
MAL-Net: Model-Adaptive Learned Network for Slow-Time Ambiguity Function Shaping
Remote SensingDesigning waveforms with a Constant Modulus Constraint (CMC) to achieve desirable Slow-Time Ambiguity Function (STAF) characteristics is significantly important in radar technology. The problem is NP-hard, due to its non-convex quartic objective function
Jun Wang +5 more
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Two-Dimensional AOA Estimation Based on a Constant Modulus Algorithm
International Journal of Antennas and Propagation, 2017 We propose a two-dimensional (2D) angle of arrival (AOA) estimator using the algebraic constant modulus algorithm (ACMA). This algorithm was originally introduced to estimate the one-dimensional (1D) AOA.
Saleh O. Al-Jazzar +2 more
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Advanced Engineering Materials, EarlyView.In this review, the current state of light‐assisted 3D printing as it pertains to engineering musculoskeletal tissues including bone, cartilage, skeletal muscle, tendon, and ligaments is summarized. Common printing techniques, photoreactive materials, and study design choices are compiled and reviewed.
Meagan Morgan, Bin Zhang, Roger Narayan
wiley +1 more source
Direction-of-arrival estimation for constant modulus signals
IEEE Transactions on Signal Processing, 1999 In many cases where direction finding is of interest, the signals impinging on an antenna array are known to be phase modulated and, hence, to have a constant modulus (CM). This is a strong property; by itself, it is already sufficient for source separation and can be used to construct improved direction finding algorithms. We first derive the relevant
Amir Leshem, Alle-Jan van der Veen
openaire +5 more sources
Advanced Engineering Materials, EarlyView.A flexure‐based variable stiffness structure is developed by integrating phase‐change modulation and adhesive interfacial locking of gallium. The design enables a wide stiffness variability, transitioning from soft, flexible behavior to rigid, load‐supporting performance.
Sungjin Kim +2 more
wiley +1 more source
Layer Exchange Effect of Different Fibers on Modulus of Elasticity and Dielectric Constant For Some Fibrous Composites. [PDF]
مجلة جامعة الانبار للعلوم الصرفة, 2018 The aim of this research is to prepare materials overlays way the molding hand of strengthening the epoxy resin fiber glass type (E-glass) fibers and carbon fiber (chopped carbon) section and fractures volumetric (20%, 30%, 40%) were measured modulus of ...
Faik Hammad Anter, Noor Sadi Saleh
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Advanced Engineering Materials, EarlyView.A numerical–experimental framework is developed for characterizing multi‐matrix fiber‐reinforced polymers (MM‐FRPs) combining epoxy and polyurethane matrices. Harmonic bending tests are integrated with finite element model updating (FEMU) to simultaneously identify elastic and viscoelastic material parameters.
Rodrigo M. Dartora +4 more
wiley +1 more source
MIMO Radar Mainlobe Gain Control Design for Co-Existence With Wireless Communication Systems
IEEE AccessWe tackle the issue of designing a transmit beampattern for multiple-input multiple-output (MIMO) radar while considering its coexistence with wireless communication systems.
Omar Aldayel
doaj +1 more source