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1621
Root-MUSIC Based Angle Estimation for MIMO Radar with Unknown Mutual Coupling
Published 2014-01-01“…Direction of arrival (DOA) estimation problem for multiple-input multiple-output (MIMO) radar with unknown mutual coupling is studied, and an algorithm for the DOA estimation based on root multiple signal classification (MUSIC) is proposed. …”
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1622
Generalized 2D polynomial chaotic map and its application in information transmission
Published 2022-09-01“…Existing chaotic systems have many defects in engineering applications, such as discontinuous chaotic parameter range, weak chaos, uneven output of chaotic sequences and dynamic degradation.Therefore, a generalized 2D polynomial chaotic mapping model was proposed.By setting different control parameters and the highest degree of polynomial, a series of 2D robust chaotic maps with specific Lyapunov exponent could be obtained.In order to avoid the output of the second state equation collapsing to a fixed value, a random disturbance variable which did not change with time was introduced.Finally, a numerical example was given to verify the effectiveness of the proposed model, and the dynamic analysis showed that the mapping has complex dynamic behavior.Finally, the system was applied to information transmission technology.Compared with other chaotic maps, the system can achieve lower bit error rate, which indicates that the chaotic map is more suitable for chaotic information transmission.…”
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1623
A Novel Terminal Sliding Mode Variable Structure Model Reference Adaptive System Observer for Permanent Magnet Synchronous Motors
Published 2024-01-01“…Firstly, a non-singular fast terminal sliding surface is constructed based on the output errors of the reference model and the adjustable model. …”
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1624
Research on New SMA Actuator and Bionic Hand
Published 2021-06-01“…The mathematical models of driving current and output displacement as well as temperature and driving voltage are established to solve the problems of small driving displacement and poor real-time performance of temperature feedback control. …”
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1625
Collision analysis of the GMR-2 cipher used in the satellite phone
Published 2018-02-01“…A collision property analysis of the GMR-2 cipher used in the satellite phone was presented.By using the F-component as a bridge,the link between the difference of the key byte and the collision of the output ofFas well as the link between the collision of the output of F and the collision of keystream byte were analyzed,which finally revealed the relationship between the difference of the original key byte and the keystream collision.The theoretical analysis showed that for a random frame number,a special chosen key pair could lead to a keystream collision with a high probability,when the key pair has only one byte difference in which the most significant 4 bit of the difference was equal to the last significant 4 bit.The experimental result shows that the keystream collision probability is 2<sup>−8.248</sup>,which is far higher than the ideal collision probability 2<sup>−120</sup>.This proves once again,that there exists serious potential security hazards in the GMR-2 cipher.…”
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1626
Dynamics Analysis of Inner Displaced Indexing Cam Mechanism based on Virtual Prototyping Technology
Published 2018-01-01“…The results of research show that in the same indexing period,the biggest contact force between the cam and single pin appear near the output angle of 20° in certain conditions. With the increase of load,mechanical vibration is increased.And with the increase of rotational speed,the amplitude of the acceleration of the output axis is increased significantly and the contact force between cam and pin is also increased. …”
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1627
Uncertainty quantification and global sensitivity analysis of turbulence model closure coefficients for sheet cavity flow around a hydrofoil
Published 2025-01-01“…The Sobol indices are used to rank the relative contribution of closure coefficients to the total uncertainty in the output quantities. For the considered case, the ranking of the model parameters is not influenced by the presence of the sheet cavity flow, while it varies with respect to the considered output quantity.…”
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1628
Expression Recognition Method Using Improved VGG16 Network Model in Robot Interaction
Published 2021-01-01“…Then, the high-dimensional abstract feature data output by the improved VGG16 is input into the convolution neural network (CNN) for training, so as to output the expression types with high accuracy. …”
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1629
An Improved MPPT Algorithm for PV Generation Applications Based on P-U Curve Reconstitution
Published 2016-01-01“…The output power of PV array changes with the variation of environmental factors, such as temperature and solar irradiation. …”
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1630
A Simple Binary Run-Length Compression Technique for Non-Binary Sources Based on Source Mapping
Published 2001-01-01“…The codes are chosen such that the probability of one of the two binary symbols; say zero, at the output of the mapper is made as small as possible. …”
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1631
Multimotors Coordination Control Method for Consistent Total Traction Torque of Electric Locomotives
Published 2020-01-01“…The complexity and variability of the operating environment often cause difficulties for one or some traction motors to output the distributed traction torque, which requires the redistribution of the torque output of multimotors to maintain the total traction torque of all motors at a given constant. …”
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1632
Research on Nonlinear Dynamics Modeling and Simulation of Harmonic Gear Drive
Published 2021-04-01“…The effects of harmonic gear parameters on the system output are discussed. The results show that the stiffness hysteresis phenomenon leads to the decrease of system output and transmission efficiency, the larger the transmission stiffness coefficient, the more stable the system, the larger the damping torque coefficient, the lower the transmission efficiency.…”
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1633
Power Control for Direct-Driven Permanent Magnet Wind Generator System with Battery Storage
Published 2014-01-01“…Optimized speed and power rapid tracking as well as the reduction of redundant power during mode conversion have gone through the test based on a 5 kW wind generator system test platform. The generator output power as the capture target has also been proved to be efficient.…”
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1634
Research on Fast Pedestrian Detection Algorithm Based on Autoencoding Neural Network and AdaBoost
Published 2021-01-01“…Aiming at the problem that a single high-level output feature map has insufficient ability to express pedestrian features and existing methods cannot effectively select appropriate multilevel features, this paper improves the traditional AdaBoost algorithm structure, that is, the sample weight update formula and the strong classifier output formula are reset, and the two-input AdaBoost-DBN classification algorithm is proposed. …”
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1635
Optimizing of Iterative Turbo Equalizer for Underwater Sensor Communication
Published 2013-12-01“…Furthermore, we expand iterative turbo equalizer techniques for single-input-single-output (SISO) system to multiple-input-multiple-output (MIMO) system in order to increase data rates for underwater sensor communication channel. …”
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1636
Design and Analysis of Electric Power-assisted Variable Transmission Ratio Steering System for Sweeper
Published 2020-09-01“…The new design scheme can directly reduce the output torque variation range of the assisted motor, reduce the selected motor power value, achieve the purpose of reducing the size of the motor, expanding the scope of application of the electric power steering system, and saving energy.…”
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1637
Project Quality Assessment Based on Fuzzy Nodeling
Published 2019-08-01“…Rule blokes are indicated to estimate output variable. The first rule bloke – projector rating- consists of 36 fuzzy rules that help taking into account quality of projector’s work. …”
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1638
A Two-Stage Wind Grid Inverter with Boost Converter
Published 2014-01-01“…The boost circuit is to achieve the maximum power output of the wind energy by the segmented regulation, while the improved inverter topology realizes the overall system function with the former stage circuit. …”
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1639
Concept for evaluating the safety of a dynamically loaded gearbox reducer
Published 2025-01-01“…A methodology was presented for all three ways, which was applied to a specific reducer under specific working conditions, and output results were obtained. The output results were analysed and conclusions were drawn using the specific reducer. …”
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1640
Designing of a Personality Based Emotional Decision Model for Generating Various Emotional Behavior of Social Robots
Published 2014-01-01“…Each dynamic system calculates the output values that reflect the personality, by being used as system matrices, input matrices, and output matrices. …”
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