Results 21 to 30 of about 5,339 (220)
Wideband image-reject RF channelization based on soliton microcombs (invited paper)
APL Photonics, 2023 Wideband radio frequency (RF) channelization is essential for the reception and detection of cross-band RF signals in various applications, including communications, radar, and spectrum sensing. However, digital channelizers are inefficient at performing
Jiewen Ding +7 more
doaj +1 more source
Itinerant Microwave Photon Detector
Physical Review Letters, 2018 The realization of a high-efficiency microwave single photon detector is a long-standing problem in the field of microwave quantum optics. Here we propose a quantum non-demolition, high-efficiency photon detector that can readily be implemented in present state-of-the-art circuit quantum electrodynamics.
Royer, Baptiste +3 more
openaire +4 more sources
Passive Radar Imaging of Moving Targets Using WiFi Signals
Leida xuebao, 2015 In recent years, the wireless local networks are constructed rapidly and their coverage greatly increase. The passive radar imaging of moving targets using WiFi signals is studied in this paper, which may lead to wider applications of passive radars ...
Zhuang Xu-sheng +3 more
doaj +1 more source
Reference frequencies comb generation for microwave photonics ADC with signal spectral-interval estimation [PDF]
ITM Web of Conferences, 2019 Formation of a reference frequency comb in a circuit comprising a highly stable continuous laser and an amplitude Mach- Zehnder modulator with two independent RF inputs working with large modulation index for use in a high-speed microwave photonics ADC ...
Kulagin Victor +4 more
doaj +1 more source
Biology, 2021 A multiobjective optimization method for a dual-mode microwave applicator is proposed. Dual-modality means that microwaves are used apart from the treatment, and also for the monitoring of the microwave ablation intervention. (1) The use of computational
Carolin Hessinger +4 more
doaj +1 more source
Movement Detection in Soft Robotic Gripper Using Sinusoidally Embedded Fiber Optic Sensor
Sensors, 2020 Soft robotics is an emerging field, since it offers distinct opportunities in areas where conventional rigid robots are not a feasible solution. However, due to the complex motions of soft robots and the stretchable nature of soft building materials ...
Mei Yang +3 more
doaj +1 more source
Frequency-Scaling-Based Spaceborne Squint SAR Sparse Imaging
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2022 In synthetic aperture radar (SAR), due to the characteristics of squint data in spaceborne imaging geometry, a more accurate range cell migration correction operation is necessary.
Yufan Song +4 more
doaj +1 more source
Melting-layer modelling at C-Band [PDF]
Advances in Radio Science, 2010 Stratiform cloud formations, such as a uniform type of precipitating clouds, are sub dividable into layers with different aggregate states. In this way, it is adaptable to measurements with polarimetric radar.
J. Steinert, M. Chandra
doaj +1 more source
Advanced Functional Materials, EarlyView.Here, we provide the reader with the current state of the art in the fabrication of high‐T2‐coherence diamond, optimized through the use of double electron–electron resonance (DEER) spectroscopy. We reveal the main as well as yet unidentified spin defects, the reduction of which is essential for reducing the spin bath and fabricating materials for ...
Olga Rubinas +6 more
wiley +1 more source
Advanced Functional Materials, EarlyView.We use scanning nitrogen vacancy magnetometry to directly image the weak in‐plane magnetic moments in mixed phase BiFeO3 at the nanoscale and quantify the local magnetic moments to be 18.8±2.0 μB/nm2 in the rhombohedral‐like phase and 1.5±0.6 μB/nm2 in the well‐known non‐magnetic tetragonal‐like phase.
Lei Wang +14 more
wiley +1 more source