With the advent of the 5 G era,people have more and more needs for streaming media and real-time interactive applications with low delay and high bandwidth,while the transmission technology based on TCP is far from me...
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ISBN:
(数字)9789887581536
ISBN:
(纸本)9781665482561
With the advent of the 5 G era,people have more and more needs for streaming media and real-time interactive applications with low delay and high bandwidth,while the transmission technology based on TCP is far from meeting the needs of real-time *** paper studies the mainstream congestion control algorithm GCC in the field of real-time communication,as well as analyzes its overall structure,basic workflow and the calculation of key *** view of the problem that the rate controller based on packet loss in GCC algorithm will reduce the transmission rate in the case of noise packet loss,GCC-BDP algorithm is improved and proposed.
Particle Detection plays important roles in industrial and medical image ***-learning based methods can only deal with the particle images with simple backgrounds and sparse *** most neural network based methods can a...
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ISBN:
(数字)9789887581536
ISBN:
(纸本)9781665482561
Particle Detection plays important roles in industrial and medical image ***-learning based methods can only deal with the particle images with simple backgrounds and sparse *** most neural network based methods can also hardly to deal with overlapping objects and small particles,besides,the huge amount of parameters of these methods also has a great demand for annotated data,which is difficult to ***,we use bright pixels to represent the spatial position of particles,and artificially divid the sizes of particles into multiple intervals.A feature representation called Light-spots Maps is proposed to replace the bounding box and pixel classifications in our detection *** Light-weight networks based on ResNets is used to transform the particle images into Light-spots maps to detect the particle *** experiments,we prove the effectiveness of our method.
Aiming at the problem of how to avoid the joint limit and singular position in continuous trajectory planning of the S-R-S redundant manipulator,a new inverse kinematics optimization algorithm is proposed in this ***,...
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ISBN:
(数字)9789887581536
ISBN:
(纸本)9781665482561
Aiming at the problem of how to avoid the joint limit and singular position in continuous trajectory planning of the S-R-S redundant manipulator,a new inverse kinematics optimization algorithm is proposed in this ***,according to the special geometry of S-R-S manipulator,we take the arm angle as the redundant parameter to obtain the joint angle expressions under the given tip pose and arm *** we discuss the feasible arm angles under joint limit in nonsingular and singular cases,and give a complete method to obtain the effective arm ***,we introduce the concept of virtual force to represent the degree that the joint is far from the limit,and define the optimization objective function with the virtual force as the weight to avoid joint limit,the complex relationship between the arm angle and joint angles is linearized by the difference method to simplify the objective function to quadratic function,combine with the feasible arm angle range,we realize singularity avoidance and joint limit avoidance at the same *** simulation result shows that compared with the traditional algorithm,the algorithm proposed in this paper has better joint limit avoidance ability on the premise of avoiding singularity which reflects the superiority of the algorithm and can be used for the motion planning of the manipulator in practical engineering.
This paper is concerned with the stability analysis of discrete-time neural networks with a time-varying ***,an improved augmented Lyapunov-Krasovskii functional(LKF) is established by adding single/double-summation *...
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ISBN:
(数字)9789887581536
ISBN:
(纸本)9781665482561
This paper is concerned with the stability analysis of discrete-time neural networks with a time-varying ***,an improved augmented Lyapunov-Krasovskii functional(LKF) is established by adding single/double-summation ***,by utilizing summation inequalities,the forward difference of the constructed functional is estimated as a cubic function with respect to the *** applying the cubic function negative-determination lemma,a less conservative stability criterion is obtained,whose advantages are demonstrated via a numerical example.
This paper studies the finite-time control problem for a class of high-order nonholonomic systems.A new smooth coupling controller is proposed to make the system states converge to zero in *** order to ensure the stat...
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ISBN:
(数字)9789887581536
ISBN:
(纸本)9781665482561
This paper studies the finite-time control problem for a class of high-order nonholonomic systems.A new smooth coupling controller is proposed to make the system states converge to zero in *** order to ensure the states constraints of the nonholonomic systems,a new adding a barrier power integrator technique is *** barrier function is integrated into the traditional adding a power integrator ***,the proposed controller is singular-free and can produce smooth control ***,simulations verify the obtained results.
In this work,a virtual teacher is designed to play the mirror game with human *** individual motor signature is taken into account,which allows to produce diverse teaching *** teaching effect of virtual teacher is ass...
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ISBN:
(数字)9789887581536
ISBN:
(纸本)9781665482561
In this work,a virtual teacher is designed to play the mirror game with human *** individual motor signature is taken into account,which allows to produce diverse teaching *** teaching effect of virtual teacher is assessed by comparing and analyzing the original movement characteristics of human players and the movement characteristics after going through the teaching ***,stability analysis of the teaching model is ***,the feasibility of the model is verified by comparing the data of several groups of samples.
A dynamic positioning disturbance suppression method is presented for the offshore drilling platform based on the equivalent input disturbance(EID) approach in this ***,the offshore drilling platform's low-frequen...
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ISBN:
(数字)9789887581536
ISBN:
(纸本)9781665482561
A dynamic positioning disturbance suppression method is presented for the offshore drilling platform based on the equivalent input disturbance(EID) approach in this ***,the offshore drilling platform's low-frequency and wavefrequency motion components are separated by the Luenberger *** a linear-quadratic regulator is designed to ensure the stability of the low-frequency motion closed-loop *** EID approach is used to estimate and compensate for the unknown time-varying disturbances of the environment,thereby improving the disturbance suppression ability of the *** results of a supply vessel demonstrate the validity of the method.
Dear Editor,In this letter,in order to deal with random network delays and packet losses in a class of networked nonlinear systems,three data-driven networked predictive control methods are *** closed-loop systems and...
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Dear Editor,In this letter,in order to deal with random network delays and packet losses in a class of networked nonlinear systems,three data-driven networked predictive control methods are *** closed-loop systems and control increments are derived,respectively.
This paper investigates the problem of finite-time H state estimation for discrete time-delayed genetic regulatory networks(GRNs) with observations of two hidden-Markov modes.A new GRN model with two Markov jump del...
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ISBN:
(数字)9789887581536
ISBN:
(纸本)9781665482561
This paper investigates the problem of finite-time H state estimation for discrete time-delayed genetic regulatory networks(GRNs) with observations of two hidden-Markov modes.A new GRN model with two Markov jump delays is proposed,of which the mode observations are governed by two hidden-Markov *** sufficient conditions are derived,which guarantee the finite-time boundedness of the estimation error dynamics with prescribed H disturbance attenuation *** state estimator parameters are designed by solving several matrix inequalities.A numerical example is given to illustrate the validity of our results.
This paper investigates the problem of stability analysis for the uncertain linear systems with time-varying delay. Firstly, an uncertain linear system model considering time-varying delay is established. Then based o...
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