A5085188446- Optical Wireless Communication Technologies
- Underwater Vehicles and Communication Systems
- Advanced Sensor and Energy Harvesting Materials
- Advanced Optical Sensing Technologies
- Tactile and Sensory Interactions
- Gas Sensing Nanomaterials and Sensors
- Ocular and Laser Science Research
- Semiconductor Lasers and Optical Devices
- Satellite Communication Systems
- Phagocytosis and Immune Regulation
- Space Satellite Systems and Control
- Spacecraft Design and Technology
- Extremum Seeking Control Systems
- T-cell and Retrovirus Studies
- Advanced Photonic Communication Systems
- Error Correcting Code Techniques
- Digital Filter Design and Implementation
- Spacecraft Dynamics and Control
- Advanced MEMS and NEMS Technologies
- Collembola Taxonomy and Ecology Studies
- Optical Systems and Laser Technology
- Cardiovascular and Diving-Related Complications
- Conducting polymers and applications
- Analog and Mixed-Signal Circuit Design
- Advanced Fiber Optic Sensors
Chinese Academy of Sciences
2017-2024
Shanghai Micro Satellite Engineering Center
2020-2024
Ningbo Institute of Industrial Technology
2023-2024
Innovation Academy for Microsatellites of Chinese Academy of Sciences
2020-2022
Shanghai Institute of Optics and Fine Mechanics
2017-2018
University of Chinese Academy of Sciences
2017
Institute of Biophysics
2017
Abstract Strain and temperature are important physiological parameters for health monitoring, providing access to the respiration state, movement of joints, inflammation processes. The challenge smart wearables is unambiguously discriminate strain using a single sensor element assuring high degree integration. Here, dual‐mode with two electrodes tubular mechanically heterogeneous structure enabling simultaneous sensing without cross‐talk reported. consists thermocouple coiled around an...
We designed a photon-counting receiver system for long-distance underwater wireless laser communication at different code rate Reed-Solomon (RS) and low-density parity check (LDPC) codes. The symbol error (SER) performance of the LDPC RS codes with signal-to-noise ratios was analyzed. effects background noise, pulse stretching, frame synchronization were considered in our system. A water tank experiment confirmed that 1/2-code-rate (255,127) is an excellent coding strategy distances range...
Flexible pressure sensors are crucial force-sensitive devices in wearable electronics, robotics, and other fields due to their stretchability, high sensitivity, easy integration. However, a limitation of existing is reduced sensing accuracy when subjected stretching. This study addresses this issue by adopting finite element simulation optimization, using digital light processing (DLP) 3D printing technology design fabricate the structure flexible sensors. first systematic how structures...
The origin of life on Earth is believed to be from the ocean, which offers abundant resources in its depths. However, deep-sea operations are limited due lack underwater robots and rigid grippers with sensitive force sensors. Therefore, it crucial for pressure sensors integrated mechanical hands manipulation. Here, a flexible stress sensor presented that can function effectively under high water deep ocean. Inspired by biological structures found abyssal zone, our designed an internal...
Abstract To address key challenges in the launch deployment and separation safety of companion satellites for space target spacecraft, this paper proposes design development a micro-nano satellite configuration integrated with specific release mechanism. This efficiently utilizes external enabling payload ensuring safe separation. The structural mechanical subsystems were designed dynamic imaging spacecraft. Subsequently, tests conducted on assembled satellite. confirmed effectiveness...
With the development of large low earth orbit (LEO) communication constellations, efficiency laser inter-satellite link (ISL) establishing become bottleneck for subsequent large-scale launch and rapid networking applications LEO constellations. Hence, we establish pointing jitter error structure experiment satellites (LCES) system. The can be used to trace source errors evaluate in-orbit jitter. And derive an analytical expression acquisition probability density function (PDF) which...
Free space optical (FSO) systems were usually designed according to the link budget analysis. However, previous attenuation estimations for fog channel not precise. The would be distorted, and resulting in robustness degeneration of FSO system. Therefore, it is necessary establish an accurate model channel. models mainly adopted by Beer-Lambert law, or classical Monte Carlo simulation combined with drop size distribution. Unfortunately, estimation deviation was eventually fall within...
Apoptotic cells generated by programmed cell death are engulfed phagocytes and enclosed within plasma membrane-derived phagosomes. Maturation of phagosomes involves a series membrane-remodeling events that governed the sequential actions Rab GTPases lead to formation phagolysosomes, where corpses degraded. Here we identified gop-1 as novel regulator apoptotic clearance in Caenorhabditis elegans Loss affects phagosome maturation through RAB-5-positive stage, causing defects acidification...
In long-distance, high-speed underwater laser communication, because of the strong absorption and scattering processes, pulse is stretched with increase in communication distance decrease water clarity. The maximum bandwidth limited by laser-pulse stretching. Improving rate increases intersymbol interference (ISI). To reduce effect ISI, Viterbi equalization (VE) algorithm used to estimate maximum-likelihood receiving sequence. Monte Carlo method simulate stretching received at a wavelength...
We design and demonstrate a long-distance underwater optical communication system with photon-counting receiver. Monte-Carlo simulations are conducted to determine parameters estimate performance. According the simulation results, Q-switched all solid state 532nm laser pulse energy of 100uJ@10kHz is used as source transmitter. A telescope 1° field view, 100mm clear aperture, photon counting detector collect in then present an experimental implementation long tank filled clean water. The...
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Abstract The optoelectronic oscillator (OEO) has been widely investigated to generate ultrapure microwave signals. For many applications, signals with large bandwidth and multiple frequency bands, such as broadband comb (MFC) signals, are also needed. Conventional MFC generated by active mode-locking OEO (AML-OEO) using devices Mach–Zehnder modulators (MZM) delay fibers, which make the system structure more complicated take a long time build up stable oscillation at an mode. In this paper, A...
As an indispensable part of wearable devices and mechanical arms, stretchable conductors have received extensive attention in recent years. The design a high-dynamic-stability, conductor is the key technology to ensure normal transmission electrical signals energy under large deformation, which has always been important research topic domestically abroad. In this paper, with linear bunch structure designed prepared by combining numerical modeling simulation 3D printing technology. consists...
The predecessor of China Optics was and Applied Digest, which founded in 1985. At that time, it the only retrieval journal field optics China. end 2008, Digest renamed
Obtaining the optimal acquisition strategy in inter-satellite laser communication can effectively improve efficiency of link (ISL) establishing. Firstly, theoretical model time under influence in-orbit jitter is established this paper. Then, overlap factor for performance with analyzed by model, and configuration obtained to realize convex optimization time. Finally, accuracy verified Monte Carlo (MC) simulation. The simulation results show that combined system parameters be used guide...
A down-link propagation model was set based on Monte Carlo simulation, and the comprehensive influence of sea wave, water channel receiver system has been considered. The validated by practical received results.