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To analyze the number of green landscape patches, their constitutive characteristic and spatial distribution in Karamay, this paper first conducted an extraction of green space information from 2012 QuickBird image of the city by means of combining object-oriented method, NDVI index and texture information together, followed by further division of the green space into six types. Finally, the method...
This paper presents a full scheme of azimuth follow-up System utilized in a certain model of radar spy. By analyzing the requirements for the performance indexes of the follow up system, with a STK465 thick film integrated circuit as the key unit of the power amplifier, a Heidenhain ROD250 Incremental Optical-electrical Encoder for position sensor and a LPC2148 as microcontroller, a digital high accuracy...
Dynamics analysis model has been built, the corresponding computer program for which has been compiled on the basis of Matlab for a multi-link high-speed press. The press being developed is taken as an example to calculate in practice, calculation results of which show that the required torque is lower at the nominal pressure stroke. With constant increasing of crank speed, torque needed for overcoming...
The area aerial defense antimissile multi-sensor system always need to assure to accomplish the mission, and try to enshroud itself possibly at the same time. Therefore, the sensor management system must reduce the use of resource furthest on the premise of meeting the tracking precision, especially reduce the initiative-sensor boot-strap time. According to this purpose, we discuss a sensor management...
The former maneuvering target tracking model is based on deterministic system. But the actual fact is the parameter and structure of system often change at random, which make the tracking system dynamic with the indeterminacy of structure and parameter. Use random changing theory and sensor management technique, and design the changing tracking model of system, considering fully the changing of state...
The most research on the power supply test was aimed at the fields of aviation and communication now, but it had not seen similar test system of the missile. To address this problem, the measurement theory and achievement method of the secondary power supply test system based on PXI bus were elaborated in the paper. On the basis of analyzing the function and the quota of the system, the hardware platform...
In order to raise the efficiency, a automatic measuring and test systems is developed to some surface-to-air missile. By using the computer control and the multimedia technologies, the system realized automatic measuring and test of the circuits of the missile autopilot. The system raised the speed and the precision of measuring and test enormously, reduced the worker's training time. During the development,...
Based on the complementarities of ground-to-air missile fuze and seeker target detection information, the feasibility of their fusion and optimality is analyzed. This paper proposes an multi-layer feed forward neural network OBP (optimal-back-propagation) algorithm, and structures a fusion and optimality model of target detection information. Simulation result shows the detection information can be...
This article offers an easy optimum method to determine the free surface in a liquid tank. Computational examples show that it is effective and can be used for many similar problems.
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