Abstract:The direct multiple shooting algorithm is one of the very effective methods of solving optimal control problem. Some of the optimal control problems can be solved more quickly and efficiently with the algorithm if only the control variable's values at the knots are given. Some flight dynamics optimal control problems were solved successfully with the improved algorithm. The algorithm is applied to solving the problem in optimal design of combat agility management system (CAMS) in this paper. The study results show that by adopting CAMS designed with the optimal control theory , an aircraft's turning time can be shortened by about 20%.

Abstract:In accordance with the special characteristics of the cement concrete large slabs used for airfields, the calculating methods of the joint width and the change of the joint width have been set up. The width changes with time on the cement concrete large slab test area have been measured and observed in a certain airfield. Based on this, the design method of cement concrete large slab joint is given.

Abstract:A new design approach based on the minimal order nonlinear observer is presented to detect and locate leaks in complicated pipelines, since the measurements of pressure and flow are realizable only at the two extremes of the ducts, the state decoupling technology is utilized in generating the residual values and an appropriate method of linear coordinate transformation is selected. Then the residual sets are attained according to a series of state equations, which are sensitive to the leak set. Finally the performance of the approach is demonstrated by using the experimental data taken from the airplane refueling pipelines with leaks, and satisfactory results are obtained.

Abstract:The atmospheric turbulence is a kind of discrete random signal in numeric emulation concerning flight, the results obtained disagree with their theoretic values when common calculation methods are used, this paper discusses the reason and presents some improved methods in calculation.

Abstract:This paper presents a method of dealing with special situations of aircraft by using BAM network in flight. Mainly BAM network is taken to map the relations between the trouble codes and managing measures in aircraft, through which the pilot can get a hint to operate in a correct way. The computing result shows that this method is effective both in accomplishing the tasks like this and in study of application of neural network to diagnosing troubles in aircraft and managing special situations in air.

Abstract:This paper presents an untouched optical measuring method in finding out the deformation of an aircraft engine vane. In this paper the principle of measurement is expounded, the source of error is analyzed and the precision of the measurement is estimated. This method has the advantage of high precision, and is simple in operation and convenient in use.

Abstract:This paper presents an analysis of the operating principle of GPS/INS building-up navigation system and the control processing of guidance-control unit (GCU), then the whole procedure of JDAM is obtained from the theory. This offers a theoretical basis and reference experience in redoing the conventional stockpile of bombs now available in our country.

Abstract:In this paper, from actual conditions, the principle and influencing factors of the air defense hybrid disposition are analyzed. Based on former study, the effectiveness evaluation indexes of ground-to-air defense hybrid disposition is put forward and its evaluation models are established, thus providing a theoretical basis and a decision-making support for the selecting of disposition scheme.

Abstract:Based on analyzing current models of threat assessment, combined with the neural network techniques, this paper presents a threat assessment algorithm based on BP algorithm. By utilizing the good abilities of adapting and self-learning of neural networks, the accuracy and adaptability of the threat assessment algorithm are improved.

Abstract:The military simulation technology is an important branch in the applied field of system simulation and an indispensable support technology for the military field and the building up of national defense. In this paper, the development survey of military simulation technology at home and abroad is described, and the development trend of modern military simulation technology is summarized. The new trait and technology countermeasure of modern military simulation systems are introduced by taking synthetic simulation system for example.

Abstract:This paper mainly discusses the electromagnetic interference environmental model for the computer generated forces of ground-to-air missile and simutaneously presents the special olemands and key technology of the electomagnetic environmental simulation and the classification and modeling method of electomagnetic interference.Based on the above,This paper also offers partial mathematic model and simulation softcoane modutar stracture of space electromagnetic environmental computer simulation

Abstract:This paper presents an untouched optical measuring method in finding out the deformation of an aircraft engine vane. In this paper the principle of measurement is expounded, the source of error is analyzed and the precision of the measurement is estimated. This method has the advantage of high precision, and is simple in operation and convenient in use.

Abstract:Based on the requirement of defensive warfare of our army in the future, this paper studies the factors that affect the total position of field air defense bastion, and makes fuzzy overall evaluation for the total position of field air defense bastion by the method of AHP. We build up judgment matrixes to calculate every item's weight, and then optimize the project of total position of field air defense bastion.

Abstract:Smart antenna and joint detection are the key techniques in the third generation (3G) mobile communication system. But their algorithms are too complicated to meet the requirement of real-time processing. This paper presents a new channel estimate algorithm to solve the problem. With the diversity gain, the principle and technique of simplifying the channel estimate algorithm, structure and decreasing the complexity are discussed in detail. The integrative efficiency of the system combining the array antenna with the joint detection is analyzed. The simulation results show that the algorithm is feasible and effective, and helpful to making the technique of joint detection practical in real system as early as possible.

Abstract:Based on the wireless channel property of the MC-CDMA random access system, aiming at the parallel transmission of the multi-rate services in the up link, an integrated services admission control scheme is presented.

Abstract:The cause of sun transit is interpreted in this paper. Through the link budget and the computation of antenna noise at the time when sun transit occurs, Eb/N0 of the received signal is gained at the time when the effect of sun transit is strongest. The algorithm to achieve sun transit time and the flow chart to predict sun transit outage are also offered in this paper.

Abstract:As electronic device dimensions approach nanometer scale, quantum effects become especially and increasingly important for device operation, and the transistor structure with new mechanism needs to be adopted. The single-electron transistor (SET) is a typical example of such a structure. In this paper, the operating principle of SETs is analyzed in contrast to that of the conventional transistors (MOSFET) and some applications of SETs are outlined simultaneously.

Abstract:Based on the searching technique and elicitation function of artificial intelligence, an elicitation minimum path algorithm is studied in this paper. The establishing principle of elicitation function is discussed. The improvement in searching efficiency by using elicitation minimum path algorithm is presented through an example.

Abstract:Under the bases of analysis and conclusion of the fractal theory, we propose a new method of image compression based on wavelet transformation compressed encoding combined with IFS fractal encoding. Experiments show that, compared with the normal fractal encoding approach, the new method is effective in practice, i.e. less operation time and higher compression ratio can be obtained.

Abstract:This paper presents a high speed PCM demodulation circuit through which the serial parallel converter plays a role of demodulating and the hardware realizes frame synchronization. This circuit is used in certain intelligent remote test system and shows the characteristics of stable work and better antijamming performance.

Abstract:This paper presents a new method of implement inference and knowledge representation in IDSS based on the product-rule by using C+[KG-*2/5]+ language. In this method, we define the structure and inference of the rule as a rule class and the specific rule as an object of the rule class to construct the knowledge base. The inference process is accomplished by using the method provided by each object of the rule class in knowledge base. The designed example shows that the new method is simple and effective.

Abstract:After presenting two problems of object oriented model, the paper presents the knowledge re-dividing in DSS and describes the new method of knowledge management in DSS. With the introduction of the concept of model credit, the realization method of multi-model decision is proporsed.

Abstract:The constructions of nonlinear Resilient functions are studied in this paper. By using the relationship between Resilient functions and their component functions, the theory of linear error-correcting code constructing non-linear Resilient function and the permutations, some methods of constructing nonlinear Resilient functions are given.