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A design scheme of ranging accuracy calibrating system for laser range finder based on DS1023 programmable delay chip was proposed in this paper. The system gathered impulse signals extraction, precision time delay and echo signal simulation in integral whole. Distance simulation and energy simulation became a close loop. The precision delay module took Micro-controller AT89C52 as control central...
With the rapid growth of the total economy, opening up to the outside world and the degree of internationalization of increasing technological competition is more intense, requiring the dominant position of prominent enterprises' technological innovation, faster technological catch-up. Although the equipment manufacturing enterprises continued to increase the R&D investment that greatly enhance...
By using super efficiency DEA and Malmquist index, from panel data on 2006–2009 evaluate the technical efficiency of equipment manufacturing industry in China. On this basis with Tobit regression model on the effect of China's equipment manufacturing industry in various provinces and municipalities directly under the empirical analysis of factors are influencing technology efficiency. Results show...
This paper studies the relationship between financial development and economic growth based on the statistical data of 1992–2008 by using Granger causality test, the results show that: financial deepening can promote financial development, and contribute to economic growth; economic growth can improve the development of financial industry level; but at the present stage the relationship between financial...
By using method of DEA, this paper studies the relationship about science and technology R&D input and regional economic growth based on the statistical data of 31 provinces (autonomous regions or municipalities) from 2008 to 2009 in China. Based on Correlation Theory, this paper not only studies the relationships between the industrialization of science and technology achievements, but also calculates...
The growing demands for high level of energy efficiency have given much new impetus to the development of electric vehicle in Agricultural Machines. To improve the performance of the state observer for an 8-DOF four-wheel vehicle, a state observer based on the Extended Kalman Filter is proposed. With the observer, the tire-road forces and the vehicle roll velocity are estimated accurately according...
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