Results 21 to 30 of about 160,208 (263)
Leida xuebao, 2014 Integration of radar and communication systems based on OFDM signals results in large Peak-to-Average Power Ratio (PAPR). Limited by the code rate, algorithm that use the Golay sequence code to restrain PAPR can only be applied under the condition of a ...
Li Zi-qi +4 more
doaj +1 more source
Improved multi-target tracking algorithm based on SMC-CBMeMBer for the airborne Doppler radar
The Journal of Engineering, 2019 To effectively suppress clutter in airborne Doppler radar and improve multi-target tracking (MTT) performance, this study proposes an improved MTT algorithm based on Sequential Monte Carlo Cardinality Balanced Multi-target Multi-Bernoulli (SMC-CBMeMBer ...
Muyang Luo +4 more
doaj +1 more source
Probabilistic early warning signals [PDF]
Ecology and Evolution, 2021 Abstract Ecological communities and other complex systems can undergo abrupt and long‐lasting reorganization, a regime shift, when deterministic or stochastic factors bring them to the vicinity of a tipping point between alternative states. Such changes can be large and often arise unexpectedly.
Laitinen, Ville +2 more
openaire +5 more sources
A Space-time Adaptive Processing Algorithm Based on Joint Sparse Recovery
Leida xuebao, 2014 Sparse recovery Space-Time Adaptive Processing (STAP) methods for obtaining the clutter spectrum require few training samples and can effectively suppress clutter in nonhomogeneous clutter environments.
Duan Ke-qing +4 more
doaj +1 more source
A New Track Association Model Based on Uncertainty Distribution
IEEE Access, 2023 Aiming at the problem of degradation of correlation quality caused by excessive idealization of noise in the traditional track correlation model, this paper introduces the uncertainty theory in the track correlation process, and uses the uncertainty ...
Qiu Jianjie, Cai Yichao, Li Hao, Han Yu
doaj +1 more source
The Journal of Engineering, 2019 Here, the authors address the state estimation problem of non-linear systems in the presence of unknown measurement noise (MN) covariance matrix. Recently, a high-degree cubature Kalman filter (HCKF) has been successfully used in the non-linear-state ...
Hong Xu +5 more
doaj +1 more source
Consensus Continuous-Discrete Gaussian Filtering Using Fully Symmetric Interpolatory Quadrature
IEEE Access, 2020 Consensus-based estimators have been applied in the state estimation for cooperative multi-sensor systems, and most of current studies are for the continuous-time or discrete-time case.
Jiawei Li +3 more
doaj +1 more source
DOA estimation for different frequency with different angles based on wideband co-prime array
The Journal of Engineering, 2019 Most of the signals received in the field of wireless communication, radar, and sonar are wideband, so there is an active research on wideband direction-of-arrival (DOA).
Geng Wang +5 more
doaj +1 more source
Adaptive Complex Variational Mode Decomposition for Micro-Motion Signal Processing Applications
Sensors, 2021 In order to suppress the strong clutter component and separate the effective fretting component from narrow-band radar echo, a method based on complex variational mode decomposition (CVMD) is proposed in this paper.
Saiqiang Xia +5 more
doaj +1 more source
Pediatric Blood &Cancer, EarlyView.ABSTRACT Background Cerebellar ataxia after pediatric brain tumor treatment can cause persistent gait, balance, and speech impairment, yet no established rehabilitation strategy exists. Somato‐cognitive coordination therapy (SCCT) is a virtual reality–guided intervention designed to promote sensorimotor integration through visually constrained reaching
Masanobu Takeuchi +10 more
wiley +1 more source