Results 1 to 10 of about 17,770 (216)
Synthesis of Binary Group-Complementary Sequences [PDF]
TransNav, 2018 Algorithm of binary {-1, 1} group-complementary sequences direct construction for any sequences length N is suggested. On the base of these sequences the signals with very wide frequency bandwidth may be constructed (up to the ultra wideband (UWB ...
Vitaliy Koshevyy
doaj +1 more source
Ultra Wideband Low‐RCS Linear Polarised Array Based on Composite Metasurface
IET Microwaves, Antennas & PropagationThis paper proposed the design of an ultra‐wideband antenna array with low radar cross section (RCS) based on a composite metasurface. In the high‐frequency region, an ultra‐wideband polarisation conversion metasurface (PCM) unit is designed.
Yanni Wang +4 more
doaj +1 more source
Spatiotemporal coherent summation of Ultra-Wideband chaotic radio pulses. Experiment [PDF]
Известия высших учебных заведений: Прикладная нелинейная динамикаThe purpose of this work is to experimentally prove the physical feasibility of coherent addition of chaotic signals (ultra-wideband chaotic radio pulses) in space and time.
Kuzmin, Lev Viktorovich +3 more
doaj +1 more source
International Journal of Advanced Robotic Systems, 2022 To improve the human–computer interaction ability and environmental adaptability of the quadruped robot, especially the ability of the quadruped robot to follow people and avoid obstacles.
Zhi Li +5 more
doaj +1 more source
Orthogonal Chirp Division Multiplexing
, 2016 Chirp waveform plays a significant role in radar and communication systems for its ability of pulse compression and spread spectrum. This paper presents a principle of orthogonally multiplexing a bank of linear chirp waveforms within the same bandwidth ...
Ouyang, Xing, Zhao, Jian
core +1 more source
Fundamental issues in antenna design for microwave medical imaging applications [PDF]
, 2010 This paper surveys the development of microwave medical imaging and the fundamental challenges associated with microwave antennas design for medical imaging applications. Different microwave antennas used in medical imaging applications such as monopoles,
Busawon, Krishna +3 more
core +1 more source
Joint Ultra-wideband and Signal Strength-based Through-building Tracking for Tactical Operations
, 2013 Accurate device free localization (DFL) based on received signal strength (RSS) measurements requires placement of radio transceivers on all sides of the target area. Accuracy degrades dramatically if sensors do not surround the area.
Bocca, Maurizio +2 more
core +1 more source
Low Complexity Algorithm for Range-Point Migration-Based Human Body Imaging for Multistatic UWB Radars [PDF]
, 2019 High-resolution, short-range sensors that can be applied in optically challenging environments (e.g., in the presence of clouds, fog, and/or dark smog) are in high demand for various applications.
Shouhei Kidera, Yoshiki Akiyama
core +2 more sources
NanomaterialsWe demonstrate a thermally controlled ultra-wideband wide incident angle metamaterial absorber with switchable transmission at the THz band in this paper.
Liansheng Wang +3 more
doaj +1 more source
Monitoring heart activity using ultra‐wideband radar [PDF]
Electronics Letters, 2019 This Letter focuses on extracting the heartbeat information using ultra‐wideband impulse radar, and a new method that can extract not only the heart rate but also the timing of the heartbeat with high accuracy is proposed herein. As the first step towards achieving this goal, radar pulses are projected towards a human body, and the reflected pulses are
H.‐S. Cho, B. Choi, Y.‐J. Park
openaire +2 more sources