Results 11 to 20 of about 3,687,194 (237)
Complexity in quantum systems [PDF]
Physical Review E, 1994 We discuss the behavior of a quantum 1/2 spin coupled to a time dependent magnetic field, which can be quasiperiodic or random. For a quasiperiodic field, the time evolution of the system on a coarse grained space has autocorrelation, which does not decay, and positive topological entropy. The information complexity diverges as a stretched exponential,
CRISANTI, Andrea +4 more
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Local Channels under Decomposition of Quantum Gates in Bipartite Systems
Journal of Mathematics, 2023 For a bipartite quantum system with Hilbert space Hm⊗Hn, this paper considers a quantum channel ϕ from the system to itself which preserves the set of separable states.
Yihui Lao, Pei Wang, Shanli Liao
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Autonomous Control of the Large-Angle Spacecraft Maneuvers in a Non-Cooperative Mission
Sensors, 2022 Aiming at the large-angle maneuver control problem of tracking spacecraft attitude in non-cooperative target rendezvous and proximity tasks, under the condition that the target spacecraft attitude information is unknown and the actuator output has ...
Cheng Huang, Tianzeng Cao, Jinglin Huang
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Complex clients - complex systems? [PDF]
South Pacific Journal of Psychology, 2001 I would like to start with a tale… Exposure 'Some time ago a clinical psychologist registrar noted, vexedly, that it was all very well knowing what her clients needed to do if they were to improve, but it was no use at all when they stubbornly refused to adopt or deploy such life enhancing strategies.
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Modeling complex systems [PDF]
Agricultural Economics, 2010 AbstractEmpirical observations suggest that linear dynamics are not an adequate representation of ecological systems and that a realistic representation would require adoption of complex nonlinear dynamical systems with characteristics encountered in complex adaptive systems (CAS).
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A Review of Radio Frequency Fingerprinting Methods Based on Raw I/Q and Deep Learning
Leida xuebao, 2023 The hardware imperfection can generate a unique fingerprint of the trasmitter, and it is attached to the radio signal. The unique attribute of transmitter can be used for Radio Frequency Fingerprinting (RFF).
Xiang CHEN +4 more
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Complexity: against systems [PDF]
Theory in Biosciences, 2011 This article assumes a specific intuitive notion of complexity as a difficulty to generate and/or assess the plausibility of models. Based on this intuitive understanding of complexity, it identifies two main causes of complexity, namely, radical openness and contextuality. The former is the idea that there are no natural systems.
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Adaptive Impedance Controller for a Robot Astronaut to Climb Stably in a Space Station
International Journal of Advanced Robotic Systems, 2016 Maintaining stability is a significant challenge during the control of a robot astronaut while climbing with human-like dual-arm action in a space station.
Bo Wei +5 more
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Deceptive jamming against multi-channel SAR-GMTI
The Journal of Engineering, 2019 Aimed at the problem that the deceptive jamming against synthetic aperture radar ground moving target indication generated by single jammer cannot work effectively in multi-channel SAR, a novel deceptive jamming against multi-channel SAR-GMTI based on ...
Jingke Zhang +3 more
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An Intelligent Cost-Reference Particle Filter with Resampling of Multi-Population Cooperation
Sensors, 2023 Although the cost-reference particle filter (CRPF) has a good advantage in solving the state estimation problem with unknown noise statistical characteristics, its estimation accuracy is still affected by the lack of particle diversity and sensitivity to
Xinyu Zhang +5 more
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