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In this paper, we present an active disturbance rejection control (ADRC) based integrated guidance and control (IGC) law. The IGC law is designed using the backstepping technique, and the particle swarm optimization (PSO) algorithm is utilized to find the optimal selection of the controller parameters. Simulation results show that, with the application of the proposed IGC law, small miss distance...
Based on integral sliding mode control, a backstepping controller which combines the sliding mode control and backstepping technology is proposed for the problem of integrated guidance and control for missiles. The backstepping controller is designed based on the nominal model for the pitch channel model of integrated guidance and control. In order to eliminate the “computation explosion”, the dynamic...
Semivariograms and its parameters have a significant impact on Kriging interpolation and stochastic simulation. This paper used GS+ and ArcGIS to research the heavy metal of Yichang citrus orchard, which used spherical model, Gaussian model, exponential model and linear model to fit the experimental semivariograms and applied these models in the Sequential Gaussian Simulation. The stochastic simulation...
This paper presents a cluster-based adaptive weight switching median filter. Clustering analysis and a linear function is combined to capture local image statistics. In term of the local information, an iteration function is constructed to subtract impulses from corrupted image and thus noise detector is defined. After the noisy pixels are identified, in order to keep image details as intact as possible,...
In this paper, the problem of Rescheduling Rework Jobs on Single Machine (RRJSM) is investigated. Suppose that a single machine has a set of the initial loads locked for some desired purposes. The objective of RRJSM is to minimize the maximum waiting time of rework jobs by scheduling or inserting them into the locked initial loads. Firstly, the RRJSM problem is formulated and proved to be NP-hard...
MIL-STD-1553 is a data bus that served the needs of military system for over 35 years. Contemporary applications require much higher data rates than 1553's 1 megabit-per-second data rate. In this paper, a method for increasing the 1553's transmission speed in existing 1553 networks is explored and implemented. The method combines Discrete Multitone (DMT) modulation and 1553 network, and uses a new...
With the rapid development of modern avionics system, traditional MIL-STD-1553 bus cannot meet the requirements of high-speed communication. In this paper, a method of improving the transmission rate of the avionics bus is purposed by implementing a Discrete Multitone (DMT) interface over existing MIL-STD-1553 bus. Physical layer and analog front end (AFE) are designed and analyzed in detail. This...
In a cooperative communication system, inter-carrier interference (ICI) appears due to the Doppler shift, which severely degrades the performance of the OFDM scheme. In this paper, we concerned with signal decoding in cooperative space frequency block coding (SFBC) based OFDM system, while combating ICI at the same time. Specifically, the decoding algorithm is proposed by using the received signal...
This paper proposed a zonal random distribution method to study the users' characteristics based on co-channel interference in LTE high-speed railway system. Assuming the users obey random uniform distribution along the zonal area of railway, we study the users' received SINR and throughput. The results show that compared with snapshot method, this way is lower complexity, and reliably reflects the...
The most fundamental means of maintaining mechanical safety is to systematically carry out safety design and analysis in the mechanical design process. The fuzzy comprehensive evaluation method is to take the advantages of the level analytic hierarchy process and fuzzy comprehensive evaluation method. Firstly, the evaluation index system is divided into ladder level structure, calculated the index...
The development of stable and reliable fault diagnosis with rapid response in power system is the inevitable trend in smart grid reform. The deficiencies of current network fault diagnosis are analyzed in the paper. A new type of collaborative grid fault diagnosis system based on Multi- Agent System is proposed, and it is proved to be correct and effective with simulation.
For a class of uncertain DEDS that its dynamic performance can be described with serial production streamlines, under the “process perturbation”, the uncertain caused by perturbation of the system is transferred to the corresponding parameters, i.e. parameter-Dioid, for attaining the system state and tracing for controlled object, it can be implemented by a class of linear state feedback controller...
There are many factors influencing the ground settlement over mined-out area. In order to study the effect of width of coal pillar and spacing of mined-out area on ground settlement, the Druker-Prager model is chosen, which is suitable to simulate the materials of rock and soil. It is calculated by use of the advanced FEM software of Ansys. The recults show the influence law of dimention of coal pillar...
The effect of sodium sulfite on improving the purification efficiency of formaldehyde waste gas in a bio-trickling filter was investigated. In the study, 0.05 M sodium sulfite was added in the trickling liquid. The results showed that sodium sulfite efficiently removed the formaldehyde that was solved in the trickling liquid. The removal efficiencies were high up to 98.9%. The apparent slow bio-reaction...
In this study, we investigate the customer's sensation to service quality of state-owned commercial bank and the relation between Organizational citizenship behavior (OCB) and service quality. Results suggest that the sensation to service quality of different customers in sex, marriage, age and education is different, the relation between OCB and service quality is significant. Empirical implications...
Aim: To study the anti-tumour effect of Geraniin isolated from Agrimonia pilosa ledeb. Methods: MTT was used to study anti-tumor effect of Geraniin in vitro. Morphological observation of the cells was completed by fluorescence microscope. The effect of Gerannin on cell apoptosis in human gastric carcinoma SGC-7901 cells was studied by flow cytometry. Results: The proliferation of SGC-7901 cells was...
The development of information society is in urgent need of a large number of inter-disciplinary innovative talents for information-based entrepreneurship. The knowledge system applicable to inter-disciplinary innovative talents for information-based entrepreneurship is not only the standards for us to cultivate and train such talents but also the criteria to evaluate the talents' capabilities. To...
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