Results 91 to 100 of about 6,712,674 (298)

Free-Space Optical Communication Systems with a Partially Coherent Gaussian Beam and Media Diversity [PDF]

Terrestrial free-space optical (FSO) communications is an emerging low-license-free and high-bandwidth access solution, albeit hampered by the combined effects from atmospheric loss, turbulence and pointing errors (PEs).
Lee, It Ee
core  

Information Transmission Strategies for Self‐Organized Robotic Aggregation

Advanced Robotics Research, EarlyView.
In this review, we discuss how information transmission influences the neighbor‐based self‐organized aggregation of swarm robots. We focus specifically on local interactions regarding information transfer and categorize previous studies based on the functions of the information exchanged.
Shu Leng, Zihan Li, Yifeng Shao, Jinhao Liu, Li Yu, Shuguang Li   +5 more
wiley   +1 more source

Coherent demodulation using silicon-nitride integrated photonics for visible and short near-infrared optical communications

APL Photonics
Photonic integrated circuits (PICs) are gaining significant attention in the visible and short near-infrared spectral regions for diverse applications such as spectroscopy, optical atomic clocks, quantum optics, and optical communications.
Shota Ishimura, Abdulaziz E. Elfiqi, Takashi Kan, Hidenori Takahashi, Takehiro Tsuritani   +4 more
doaj   +1 more source

Coherent optical communication: Towards realtime systems at 40 Gbit/s and beyond

, 2008
Pfau T, Hoffmann S, Adamczyk O, et al. Coherent optical communication: Towards realtime systems at 40 Gbit/s and beyond. Optics Express. 2008;16(2):866-872.Coherent optical communication systems promise superior performance, but their realization in real
Noe, Reinhold, Adamczyk, Olaf, Porrmann, Mario ; https://orcid.org/, Pfau, Timo, Peveling, Ralf, Hoffmann, Sebastian, Herath, Vijitha   +6 more
core   +1 more source

LLM‐Integrated Human–Robot Interaction System for Microrobots

Advanced Robotics Research, EarlyView.
This paper proposes an LLM‐based control framework for guiding microrobots using human natural language. This framework can convert the natural human speech into safe and executable command sets for reliable navigation in complex environments. The experimental results show high accuracy and robustness in task performance, demonstrating the potential of
Bairong Zhu, Amar Salehi, Tingting Yu
wiley   +1 more source

Customized Itinerant Frequency Combs by Cascaded Nonlinear Effects. [PDF]

Adv Sci (Weinh)
A cascaded third‐order nonlinear system generates an itinerant frequency comb with the comb center frequency decoupled from the cavity resonance. This enables arbitrary spectral scaling, flexible spacing adjustments, and real‐time central‐frequency engineering, allowing comb splicing and subdivision. The resulting versatility and reconfigurability open
Wang Y, Liu Y, Li Z, Wang W, Wang S, Wang C, Zhou J, Liao JQ, Li T.   +8 more
europepmc   +2 more sources

Coherent Optical Communications: What Next?

, 2005
Modulation formats for optical communication have evolved from NRZ to RZ to CSRZ, and recently to RZ D(Q)PSK, a coherent modulation technique. Coherent optical communications, extensively investigated before the arrival of EDFA, is attracting renewed ...
Li, Guifang, Kim, Cheolhwan, Han, Yan
core   +1 more source

From Lab to Landscape: Environmental Biohybrid Robotics for Ecological Futures

Advanced Robotics Research, EarlyView.
This Perspective explores environmental biohybrid robotics, integrating living tissues, microorganisms, and insects for operation in real‐world ecosystems. It traces the leap from laboratory experiments to forests, wetlands, and urban environments and discusses key challenges, development pathways, and opportunities for ecological monitoring and ...
Miriam Filippi
wiley   +1 more source

Low-Complexity Polarization-Multiplexed Self-Homodyne Coherent Optical Orthogonal Frequency Division Multiplexing System

Guangtongxin yanjiu
ObjectiveTo enhance the performance of optical communication networks while controlling the power consumption of coherent optical communication systems, this study addresses the issues of reduced spectral efficiency and degraded Bit Error Rate (BER ...
GONG Xiaoxue, DIAO Zhihong, WANG Chao, ZHANG Yukun, ZHANG Qihan, GUO Lei   +5 more
doaj  

Intelligent Sky Guardians (InSkyGuard): An Aerial Robotic Swarm for Autonomous Detection and Entrapment of Rogue Multirotors

Advanced Robotics Research, EarlyView.
Intelligent Sky Guardians (InSkyGuard) is introduced as a four‐drone swarm that autonomously detects, tracks, and safely captures rogue drones using a coordinated net system. Computer vision and leader–follower control architecture enable synchronized enclosure, while integrated failsafes enhance system reliability. Validated through closed‐environment
Joshua Hastings, Levanya Dewanarayana, Iline Shaju, Haider Al‐Wizni, Sampson Marquis, Weicheng Huang, Pooya Sareh   +6 more
wiley   +1 more source