Abstract:The problem of multiassignment in multisensor data association has long been a key issue in data fusion field.A series of methods to solve this NP hard problem have been put forward by many researchers.In this paper we describe a novel way,Hungary solution to solv the questions in 2 D and 3 D.Through computer simulation,it has been proved that the method is effective and is worth further researching in multidimension.

Abstract:The aero CCD recon iamge becomes a degenerative image with actual information of object,due to effect of atmospheric overfall,relative sport and sensor etc.The way which the noise wipe off isn't same as CCD and film,The paper advance a sort of degenerative mathematic model that fit CCD image.

Abstract:In this paper we discuss the conditions which the input should satisfy in the dynamic calibration. The frequency response characteristics and effective conditions of three kinds of typical dynamic input have been given.

Abstract:This paper discusses a method to carry out optical interferometric measurements for the surface roughness of spheres like a biomedical application to an artificial joint, using Michelson interferometric microscope with digital image processing and a computational system to process two interferograms. The paper proposes an algorithm on the calculation of the standard least squave circles and arc from each fringe edges and the meathods to obtain the profile departures from reference mean lines and the surface roughness parameters.

Abstract:This paper gives the method to evaluate the true position for no requirements of datum and alignment,using the least square principle to separate the error from the measured data.The stability and conformability of the evaluated result for this kind of true position has been improved.

Abstract:For its high performance and open system architecture, VXIbus based instrumentation has been extensively used in many fields, such as aeronautics, astronautics, electronic communication, transportation, military and so on. As a kind of automatic test device, VXIbus based instrumentation itself should be measured and calibrated. Based on the author's research subject, this paper discusses the necessity and speciality of the calibration. Several solutions are introduced and compared, and an auto calibration system has been built. This paper also discusses the architecture of the calibration software and the control methods for software error. At last, the profound future of the calibration for VXIbus based instrumentation is described.

Abstract:The modern avionics communication system is constructed of the network of MIL STD 1553B mutiplex transmission data bus, the technic of virtual instrument which is applied to MIL STD 1553B data bus, can offer real time monitor/playback data messages, analyse the error reason, help to validate bus design. The paper discusses the application of virtual instruments to the 1553B data bus system.

Abstract:In this paper,it is described that the uncertainty of evaluation results of linearity of linear measurement system by using the least mean square method,including the courses of analysis and evaluation of uncertainty of it.Some error sources of linearity evaluation are discussed.Several main methods to decrease the linearity evaluation errors and evaluation uncertainty have been proposed.They are environment influence controlling,and decreasing the signal uncertainty to decrease the evaluation uncertainty caused by signal source.Through the practical example of experiment,the analysis and uncertainty evaluation results of linearity are presented in this paper,The courses and conclusion of analysis and uncertainty evaluation of linearity in this paper,can be applied to the uncertainty evaluation of masurement standards of linearity,can also be used in the uncertainty evaluation of linearity itself.

Abstract:The uncertainty of the Cs Atomic Frequency Standard System is evaluated as well as the result of measurement of a nanosecond universal counter.

Abstract:Atmosphere data system is an important equipment.This paper applies the method of micro instruction diagnosis and function testing to design the atmosphere data testing system,and realize testing about all atmosphere data system,so the covering rate of fault is high,The testing method can be applied to other airborne computer systems.

Abstract:On the basis of the related regulations and combining with the practice of the metrological standard check, some problems to be noticed in the quality and efficiency of metrological standard check(reexamination) are put forward.