This paper presents a use of multi-core DSP TMS320C6678 for the squinted-looking synthetic aperture radars (SARs) real-time signal processing method. This paper first briefly introduces the squinted-looking SAR algori...
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ISBN:
(纸本)9781849199940
This paper presents a use of multi-core DSP TMS320C6678 for the squinted-looking synthetic aperture radars (SARs) real-time signal processing method. This paper first briefly introduces the squinted-looking SAR algorithm and analyzes the signal processing by use of spectral analysis (SPECAN). Then, according to the requirement of squinted-looking SAR real-time imaging system, the high performance TI multi-core DSP TMS320C6678 is used for realizing the imaging algorithm through the virtual single-node technology for data transmission and interaction and the parallel approach to data processing. Finally, the flight experiment is carried out and the results show that the virtual processing method meets the requirements of the real-time imaging based on the multi-core DSP hardware platform effectively.
Power systems usually consist of thousands of buses,which make system analysis and redesign a particularly hard problem when proposing modifications in order to improve or modify existing *** of a large-scale system i...
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ISBN:
(纸本)9781467374439
Power systems usually consist of thousands of buses,which make system analysis and redesign a particularly hard problem when proposing modifications in order to improve or modify existing *** of a large-scale system into interconnected subsystems provides an effective way for the analysis,estimation and control of power *** this paper,a novel decomposition method is proposed to facilitate the placement of phasor measurement units for state estimation and control of power *** optimal problem is given based on not only point similarity but also the topology of power system,where non-overlapping subsystems with similar size can be ***,the number of tie lines among subsystems is minimized and no isolated buses ***,the IEEE 14-bus power system is used to illustrate the effectiveness of our proposed method.
Fruitful research has been done for network reconstruction by taking sparsity or other similar statistical properties into *** contrast,this paper sought to recover the network structure by means of a hybrid approach ...
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Fruitful research has been done for network reconstruction by taking sparsity or other similar statistical properties into *** contrast,this paper sought to recover the network structure by means of a hybrid approach combining both sparsity and structure balance from a Bayesian *** consider the situation where the state-space model is used to represent the structure information,in which,only a small fraction of input-output data can be obtained compared with the structure parameters to be *** sparsity and structure balance are proposed to be structure energy terms of exponential random graph model(ERGM) in this *** simplify ERGM prior to make the MAP estimation to be easy enough yet capable of capturing sparsity and structure balance property of networks and the loss function with regulations is obtained.A heuristic relaxed form and a gradient based method are *** offer an alternative approach to deal with ERGM as the prior distribution of networks for network reconstruction *** effectiveness of the proposed method is demonstrated via *** together,ERGM can provide new insights into designing case specific prior distribution of network structure for network reconstruction based on the Bayesian methods.
This paper presents a distributed model predictive control(DMPC) strategy to achieve cooperative tasks like consensus and synchronization of linear systems with coupled constraints. Based on the error of state between...
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ISBN:
(纸本)9781467374439
This paper presents a distributed model predictive control(DMPC) strategy to achieve cooperative tasks like consensus and synchronization of linear systems with coupled constraints. Based on the error of state between each subsystem and the center of its cooperative set, a novel DMPC algorithm is designed with its robust feasibility guaranteed by permitting only one subsystem to optimize at each time instant, while renew other subsystems' plans. Illustrative examples are finally conducted to verify the effectiveness of the DMPC strategy.
To identify the structure of networks is essential for analysis of complex networks. This paper transforms network reconstruction to be a signal recovery problem by means of compressive sensing. In the literature, the...
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ISBN:
(纸本)9781467374439
To identify the structure of networks is essential for analysis of complex networks. This paper transforms network reconstruction to be a signal recovery problem by means of compressive sensing. In the literature, the sensing matrix is determined by the network dynamic and measured states of nodes, which might violates the restriction on the coherence of the sensing matrix for exact recovery. This paper proposes random projection and zero component analysis to preprocess the sensing matrix in order to reduce the coherence of the sensing matrix. These two data whitening techniques are implemented in three different ways with different space complexity required, performing transformation on diagonal blocks, on multiple diagonal blocks and on the whole of the sensing matrix. Numerical simulations suggest that the latter method are effective to improve the quality of the reconstructed networks and comparisons are made among these methods and the ways they are implemented.
The paper presents an innovative construction of Pneumatic Artificial Muscles. Due to transverse deformation of the muscle, it allows obtaining a linear displacement by changing a diameter of a muscle. The new type of...
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The paper presents an innovative construction of Pneumatic Artificial Muscles. Due to transverse deformation of the muscle, it allows obtaining a linear displacement by changing a diameter of a muscle. The new type of drive, which is represented by this solution, can be used in a robot designed for exploration of a human intestine. On the basis of investigation, there are presented results of a research, differences between traditional and transversal pneumatic muscles and profits of the new construction.
Research on controlling complex networks is of theoretical and engineering importance. Recently various results on controllability of complex networks based on network science methods are reported. In this paper, star...
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ISBN:
(纸本)9781467374439
Research on controlling complex networks is of theoretical and engineering importance. Recently various results on controllability of complex networks based on network science methods are reported. In this paper, starting from the methods in control theory, we develop several analytical algorithms to solve the structural controllability problems for networks. For a network with given topology, by analyzing the corresponding structural matrix, we discuss how to get the set of feasible control schemes which guarantee structural controllability with minimal driver nodes. Two algorithms for determining the set of feasible control schemes are proposed, and the applicability and limitations of these algorithms to practical complex networks are also discussed.
作者：
Lei CaoLin WangDepartment of Automation
Shanghai Jiao Tong Universityand Key Laboratory of System Control and Information ProcessingMinistry of Education
The evacuation of pedestrians is of great importance for pedestrian traffic management and facility *** this paper,we modify the classical social force model to simulate pedestrian *** the case that pedestrians evacua...
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ISBN:
(纸本)9781479970186
The evacuation of pedestrians is of great importance for pedestrian traffic management and facility *** this paper,we modify the classical social force model to simulate pedestrian *** the case that pedestrians evacuate from a single-exit room with full vision,the phenomenon of "faster is slower" is *** the case that pedestrians evacuate from a double-exit hall with limited vision,we find that following the wall is always a better strategy,and that it is better to take crowd density into account when considering whether to follow ***,we intervene in the crowd panic by deploying information sources.
In this paper,we investigate the dynamics of Chinese stock market from a complex network perspective,based on daily fluctuations of all stocks during 1906 working day period from 2005 to *** the network being construc...
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In this paper,we investigate the dynamics of Chinese stock market from a complex network perspective,based on daily fluctuations of all stocks during 1906 working day period from 2005 to *** the network being constructed,each node is a stock,and each edge indicates the time correlation coefficient of two stocks over a window of T *** network evolves chronologically as the window slides in forward time at a ΔT-days *** examining the variation of the network parameters as time elapses,we show that 1) Different from the scale-free property observed in US stock markets,the degree distributions of Chinese stock market networks cannot follow the power-law at some periods;2) When the Chinese stock market experiences a bear market,the average degree is exceedingly large and the ratio of edges existing at two sequential networks is ***,we select a few largest-degree stocks for inclusion in a stock index,and find that it fits in with the HS300 Index well at some periods,but far exceeds after the Four Trillion Program implemented by Chinese government.
In practical application of Model Predictive control on electronic embedded system,decreasing the on-line computation cost is *** this paper,a decaying amplification aggregation method based Model Predictive control i...
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In practical application of Model Predictive control on electronic embedded system,decreasing the on-line computation cost is *** this paper,a decaying amplification aggregation method based Model Predictive control is proposed,where a free input followed by an amplitude decaying strategy is adopted as the control strategy of *** explicit model analysis method is also presented,which could describe PWM driven system more *** entire algorithm is applied on forward DC-DC converter *** control strategy is simulated and its efficiency is validated in the MATLAB environment.
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