Abstract:The optimal post - stall maneuver model is put forward based on nonlinear point - mass aircraft dynamics.A numerica1 procedure on optimization of minimum - time maneuver is then established , in which a punishment function is.defined to handle the constraints , and the conjugate gradient method is employed to search for the optimal solution. The result shows that entering deep post - stall region and rolling around velocity vector can he1p to change flight path reorientation rapidly in within -visual-range air combat. It also shows that energy lost must be taken into account in post - stall maneuvers.

Abstract:This paper reviews the concept , principle , and the architecture of Integrated Maintenance Information System. Based on the concept of IMIS , this paper discusses some promising functions making use of maintenance information fusion , presents the purposes and tasks of information fusion on different hierarchical level. Finally , a comprehensive description of equipment maintenance information fusion system and some potential applications is given. As a focus of practical application , fundamental theory and the process of dynamic diagnosis through information fusion are also presented.

Abstract:Aimed to the present technology level and reliability of the domestic-made equipment of Instrument Landing System , an advanced and feasible technological renovation scheme is presented , and the said equipment is digitized and remote maintenability is reinforced.

Abstract:Aiming at the limitation of the traditional RPV dynamic control system,an adaptive fuzzy control strategy of the RPV engine is put forward. We produce an adaptive fuzzy controller which can control wind - gate and oilgate for the working points of the RPV engine in the flight eontrol computer and put it into a two dimension inquired table. After getting present information on the state of the engine by a sensor , we inquire the table by software , at the same time we can get the accurate out - put controlled variable simply by transiting factors. In this way we can achieve the closed - loop control of the engine.

Abstract:The concept of potential function and the dynamic model has been introduced for air-defence strategy system based on the knowledge of the potential warfarelaw, With these models and its elementary analysis , we have obtained some valuable conclusions for air - defence strategy system.

Abstract:We briefly describe the situation about militmy drilling simulators & systems at home and abroad , point out the significant opportunity and severe challenge which it is confronted with and discuss the developing trend of military drilling simulators & systems. It is of the utmost importance , for stimulating the simulation' of military drilling methods and the modernization of military drilling simulators of PLA , how to grasp firmly the opportunity ，meet the challenge , and promote development.

Abstract:Fuzziness and randomness are two different uncertainties , and often axist in one engineering problem.Based on the possibility theory ,a procedure for reliability calculation of the structures that contain both random variables and fuzzy variables is presented in the paper. The possibility distribution of fuzzy failure probabilily of structures can be given by the proposed model. Being different from some common models , the failure probability of fuzzy-random structures is taken as fuzzy variable , which may indicate the real safety state of structures objectively.The computations of examples illustrate the feasibility and application of the proposed method.

Abstract:Based on the analysis of the original LCC model,a method is given for incorporating the effects of built-in test (BIT) into the life cycle cost of a given electronic system. An improved LCC model is given that captures the savings achieved by BIT through reducing the maintenance times , complexity of extemal test equipment , personnel skill levels , amount of spare parts , and the need for preventive maintenance. The model also includes such design considerations as false alarms , diagnostic errors , undetected faults , BIT hardware failures , and diagnostic ambiguity.

Abstract:The filter is a key unit of the contiguous frequency - range channel synthesizer , moreover coupling is a sticking point of the design of the filter. In this dissertation , the tuned screws and coupling screws are skillfully used to solve the coupling design of combine model and cavity between extreme sides in TE111 ellipse function module -double columnar filter. The filter has been employed. The consumer is satisfied with it.

Abstract:The investigation of the power efficiency of the linear Gm - C integrator and the log - domain integrator is given. It is shown that log- domain filters are better suited for low-power signal processing at low supply voltages. The simulations show that the log -domain integrator has lower distortion than the linear Gm - C integrator. The log-domain circuits are appropriate for the filter designs with the low-voltage ,low -power, high frequency and low distortion.

Abstract:Rectangular waveguide slot array antenna is widely used in airborne radar. It has the characteristics of the small volume , light weight , high aperture efficiency and low wide-angle minor lobe and so on. The rectangular waveguide slot array is analyzed and directivity function and directional pattern are given in this paper. The analysis program is made and the data file of directional pattern used for general software is formed.

Abstract:This paper introduces the conception 、component and characteristics of software radio , analyses the meaning and feasibility of researching the information processing of software radio , expounds the method of objectoriented , combines the method of object-oriented with the blueprint of software radio , puts forward the conception of the application of information processing technology of object-oriented software radio in air defence C3I system , and researches its designing method.

Abstract:Chip microcontrollers are widely used in the system of data measurement & control. Computer have far more powerful function and friendly interface than chip microcontrollers. More complicated control could be realized by combining computer with chip microcontrollers. In this paper we presents the system constitution , the process and the software realization of the remote serial communications between computer and chip microcontrollers.

Abstract:This paper introduces the function of ATM switchingnet , test method of its fundamental parameter , and builds test environment of ATM switching net. By means of this test environment , debugging hard circuit of 8 x 8 ATM switching net , and testing its fundamental function and electrical parameter , the result is satisfactory. This paper plays an important role in practicality of ATM technology.

Abstract:This paper introduces several types of communication between SW MODEM and the serial port of computers which are applied to a semiduplex SW transmitter - receiver , analyses the realization of communication between SW MODEM and computer serial port , and goes into particulars several key techniques of the communication programme.As shown by experiment results: working out the communication procedures between SW MODEM and computer serial port can realize datatransmission in factual channel. This proves the availability of communication programme between SW MODEM and computer serial port based on thread event- driven style.

Abstract:Operated simulator has been an important equipment of the army and college operating exercises. In this paper , we focus on the designing of the control system. Using multi-dynamic scanning technique and oriented - object's programming idea for the input and output of many switch's states not only can optimize the system structure but can raise the efficiency of programming.

Abstract:In order to eliminate the block effect of the fractal image compressing in space domain after restoring the image，an improved approach of Fractal Image Compressing in wavelet domain is proposed in this paper. Experiments show that the new way attains this goal.

Abstract:Presently Linux is a popular operation system at home and abroad , which employs an open and developed model. This would greatly enhance abilities on software operation and exportation , and especially has great business capacity to the software development of china. This article analyses its technical characteristics of Kernel in the light of the strong and stable operating system of Linux , and also introduces some promoting ways to the kernel and whole process. Some matters needing attention are also presented. All of those would provide some references to learn and use Linux.

Abstract:With the introduction of active network , the new technology applied to traditional network management is illustrated such as active node and mobile agent. In addition , a novel network management mode is also presented based on active network. At the same time some pivotal techniques and methods of active network management , for instance , dynamic MIB and Code moving , are discussed in this paper.

Abstract:This article explains the definition , character and the related key skills of data warehouse. Combined with thesimultaneity and importance of the war-field threat estimation , the data warehouse of the model is defined.Based on this , a model of object threat estimation is built according to data warehouse. And finally , a star data model of the object threat estimation is produced. Using the data warehouse skills for realizing tne object threat estimation can improve speediness 、accuracy and prediction ability of the threat estimation of the object in the air.

Abstract:Based on evolutionary programming, a novel algorithm for designing the topology and weight distributions of feedforward networks is proposed. This algorithm can evolve network architectures and connect weights( including biases) simultaneously and produce very compact networks. It can escape from structure local minima due to its global search capability. The effectiveness of this algorithm has been confirmed by the simulation results.

Abstract:In this paper , analytical method of frame reliability is advanced systematically. The automatic production process of limitation equation is proved. Correlation coefficient of variahles is investigated. Mter bringing into full discussion , it is shown that the method of this paper is acceptable , the results are reasonable , and the method can be used to analyze the frame reliability.

Abstract:In this paper , a method is put forward , by which the test for fault appeanance is organrically combined with mending strategy and the method of diagnosing more than one fault is realized through building a test-fault-mend relation model. The application in the fault automatic diagnosis device of gasoline engine shows that by using this method , the effective ways of diagnosing complex faults and directing maintenance are given clearly and accurately.

Abstract:A criterion theorem of orthomorphic matrix and linear orthomorphic permutation is obtained by using rational standard theory of matrix and the structure of Linear orthomorphic permutation is also solved by a constructive approach. The enumeration problem of MLOP put forward by Gu Dawu and Xiao guozhen is answered by using primitive polynomial.

Abstract:A new bivariate cubic interpolation spline function over triangles is given by the introduction of new interpolation basic functions on triangles , and it possesses continuity and the parameters on the net points can be determined by a transmission formula. In the authors ' opinion , the method in this paper have the advantages of small calculation ,fewer parameters and the parameters can be obtained very easily by using a transmission formula in stead of the Farins' split - triangle interpolante method , thus the new method is easy to use in CAD.

Abstract:From the point of mathematical analysis , it quantitatively studies the physical conditions of forming a separated shock wave. Through translation of the function of source flow Mach number , deflection angle of passage and angle of shock wave into algebraic equation , it formulates an integrated numerical calculation method for the shock wave angles , and then plots the relation curves of physical variables between front and behind of shock waves.

Abstract:In this paper , a new theory called the theory of error contrast is put forward to solve the question of intercross confusion in identification and classification of neural network. The result of analysis shows this method is accurate and reliable through the example of identification of TBM and bait based on BP network. This method can solve the fuzzy question in classification of neural network.