Papers by Keyword: Guidance

Abstract: In track curves may show deviations from the nominal dimensions, in the form of continuous or discontinuous bends which produce dynamic forces of interaction vehicle-path in the transverse direction, which, in addition to the worse ride quality can jeopardize the safety of vehicle guidance. If the vehicle is traveling at a constant speed in a curve with deviations no I cant deficiency box to the mass m will be subject to quasi-static transverse acceleration γ_T0 or uncompensated centrifugal force F_n. As a result, each axle will act a driving force of the chassis quasi-static force H. Along with the emergence occurs and elastic compression elements and the vehicle track superstructure. Considering that their total stiffness is c_y, their static deformation will be y_c = H / c_y. Therefore, the vehicle can be considered as a simple harmonic oscillator, ie a system table - arc, the arc yc is static deformation.

Abstract: According to the feature of test requirement existed inthe flight test and measuring equipments in plane track, the flight test trajectory measurement system is builtand anomaly recognition of flight test trajectory measurement is studied intensively. For the requirement of implementation guide and monitor treatment, the data processing software of flight test real-time trajectory measurement system is designed and programmed. Algorithm model construction and implementation process are also presented in this paper. In addition,real-time measurement and guidance andmonitoring processingare realized through the program. The system has been applied to realtime monitoring of flight test,which has obtain the very good application effect.

Abstract: This paper aims at the problems of safety and efficiency of airport,designs and implements an Advanced Surface Movement Guidance and Control System (A-SMGCS) terminal, discusses the goals and key technologies about the system,including cache design of aircraft targets, and efficiency improvement of a large number of targets on the aerodrome.Finally,we give the test and conclusions of the system at a international airport in China.

Abstract: Classes daily management refers to the class of specific management activities undertaken by managers every day . Since the content of the daily management and more, and very complex , it is often a problem. This article focuses on the concept of presence from the management , management objectives , management ideas and management methods, classroom management process four aspects of daily management issues and a brief guide to improving the quality and efficiency of daily management classes .

Abstract: It is a high expense that the experiment of the testing vehicle based on magnetic markers carrying on outdoors. The distribution and movement of magnetic markers were simulated by direct-current electromagnet, using single chip microcomputer and power amplifier to control direct-current electromagnet. It cuts down the expense of experiment. This dissertation is focus on mainly the design of lane simulator. In the lane simulator, every 0.5m arranged a direct-current electromagnet. When the speed is 80km/h,the electrifying time of the direct-current electromagnet is 0.025s. And the electric voltage of the direct-current electromagnet is 24v, and the magnetic field intensity of the direct-current electromagnet is 12000Gs.

Abstract: This paper researches optimal end guidance law about homing UAV. After building mathematic model, simulation results show that optimal end guidance law (OEGL) attacking fixed targets is superior to constant coefficient proportion guidance law (CCPGL).

Abstract: Residential differentiation has a close relationship with urban planning. Urban land use planning will guide the formation of the residential differentiation pattern and the existing residential differentiation pattern will have some impact on the preparation and implementation of the urban planning. Adhering to market regulation and planning control simultaneously, strengthening the study on the characteristics and mechanism of the urban residential differentiation, preparing a reasonable planning for residential land, focusing on the living environment construction of deprived urban areas and strengthening the guidance and control of urban planning will play an important role in forming reasonable urban residential differentiation pattern.

Abstract: With the development of urban area, its scale and aggregation effected continue to increase. Besides, the increase in land prices and building density, functional needs and so on make great efforts in forcing to develop the underground space which provides the functions such as urban transportation, shopping, culture, entertainment ,catering and so on. Taking the main city of Nanjing as example, the paper discusses the problems and current situation, the relationship between underground space and ground space in terms of requirements and space layout, proposes the requirements and layout of underground space should meet the scarcity of functional layout of the ground above.

Abstract: The paper purpose is to present some aspects regarding the control system of unmanned aerial vehicle - UAV, used for local observations, surveillance and monitoring of interest area or as a training target for anti-aircraft systems. The calculus methodology allows a numerical simulation of UAV evolution in bad atmospheric conditions by using a nonlinear model, as well as a linear one for obtaining the guidance command. The UAV model which will be presented has six DOF (degrees of freedom), and an autonomous control system. This theoretical development allows us to build the stability matrix, command matrix and the control matrix and finally to analyze the stability of autonomous UAV flight. A robust guidance system, based on Kalman filter will be evaluated for different fly conditions and the results will be presented. The flight parameters and guidance will be analyzed. The paper is inspired by national project SAMO (Autonomous Aerial Monitoring System for Interest Areas of Great Endurance). Keywords: UAV, Simulation, Control, Guidance, Endurance, Surveillance, Monitoring, Kalman filter

Abstract: According to the underwater ballistic characteristics of unpowered anti-submarine weapon, double plane guidance of self-correcting ahead angle and tracing method was adopted. This paper established homing model, guidance, control model and the motion model of unpowered antisubmarine weapon. In typical combat situations, it carried out simulation about underwater guidance and control trajectory. Projectile motion properties were analyzed and it verified effectiveness of the guidance and control methods, it provided a basis for underwater trajectory planning, guidance and control method.