Aero Weaponry

As the two dominant sources of measurement errors,thermal noise vibration and dynamic stress error reflect the anti-jamming capability and dynamic tracking performance of GPS receiver tracking loop respectively.In order to improve the tracking performance in both high dynamic and strong interference conditions,thermal noise vibration and dynamic stress error are deeply analyzed firstly,and then the design scheme of an adaptive tracking loop is proposed.On the principle of minimizing the measurement errors,this scheme utilizes the detected line-of-sight dynamic and carrier-to-noise power density ratio to adaptively adjust the loop order and bandwidth,which can simultaneously give attention to the thermal noise vibration and the dynamic stress error.Thus the loop measurement accuracy is improved,and the tracking stability is guaranteed.Finally,the simulations results show that this adaptive tracking loop can significantly improve the anti-jamming capability and the dynamic tracking performance by adjusting the loop order and bandwidth.

JI Xin-chun

Hangkong bingqi

Design for an Adaptive GPS Receiver Tracking Loop

自适应GPS接收机跟踪环路设计

In order to improve the synthetical performance of fluidic thrust-vectoring nozzle working at high nozzle pressure ratios(NPR),a design concept of a high NPR fluidic thrust-vectoring nozzle is proposed based on dual-throat thrust-vectoring nozzle,and numerical simulations are conducted to investigate the flow characteristics and the effects of key design parameters on nozzle performances.Results show that the proposed design in this paper has a higher synthetical fluidic performance.

Tan Hui-jun

Simulation Study of a High NPR Fluidic Thrust-Vectoring Nozzle

高NPR流体推力矢量喷管的仿真研究

Based on the requirements of future warfare for the air-to-air missile proximity fuze,a novel detecting technology,terahertz,is proposed.The unique advantages and potential feasibility of terahertz technology for the air-to-air missile proximity fuze are discussed,and the discriminating method of the target characteristic position based on the terahertz technology is analyzed.This may provide reference for the application of the novel detecting technology on the air-to-air missile.

Liang Qian

Research of a Novel Detecting Technology Applied on the Air-to-Air Missile Proximity Fuze

一种应用于空空导弹近炸引信的新型探测技术研究

First detection,first shot and hit are regarded as three principles of tradition air combat.With the wide application of the fourth generation radar guided air-to-air missile,first will be the fourth firstprinciple.First leave can lift the aircraft survivability,which is regarded as doubler to lift combat effectivity.The importance of this principle in air combat is stated,and the approach realizing first leaveis researched.The typical air combat simulation result shows that sooner leave 5 s than enemy,combat efficiency will increase 20%.So this principle should be an important design requirment for developing the fifth generation air-to-air missile.

Fan Hui-tao

Four "First" Principles to Win in Air Combat

空战制胜的四大“首要”原则

Aiming at realizing the pattern synthesis of conformal array seeker,the mathematical model is developed firstly.Then in consideration of the variable curvature of the platform and different orientations of elements,the radiation pattern function of the conformal array is deduced.Finally,the pattern of the conformal array is optimized by using genetic algorithm.The simulation results are provided to demonstrate the effectiveness and feasibility of the proposed method.

Cao Xu-dong

Pattern Synthesis of Conformal Array Seeker by Using Genetic Algorithm

基于遗传算法的共形阵列导引头方向图综合

Opto electronic servo control software( OESCS) is an important component of the optoelectronic stabilized platform,engineers pay more and more attention to the debugging problem. This paper starts from the analysis of the characteristics of OESCS,the problems of OESCS'debugging process which is difficult to solve by using traditional method are stated. According to these problems,the specialistic debugging tool for OESCS is designed. The function demand and design essentials are discussed,and the top framework of debugging tool is constructed using the modular programming idea.

Liao Hong-b

The Top Framework Design and Application of Debugging Tool for Opto Electronic Servo Control Software

光电伺服控制软件调试工具的顶层框架设计与应用

Based on analyzing the structure composition of air-to-air missile,referring to the open system architecture for condition-based maintenance( OSA-CBM),the PHM frame model for air-to-air missile is put forward and two case study applying PHM technology on air-to-air missile in service are carried out. By analyzing the factors influencing the performance of missile in store,the parameters needed are determined,requirements on choosing sensor systems according to its cost,shape and transmission mode are given,and condition monitoring system for missile package box is established. Using the parameters adopted in electrical characteristic test and the theory of setting parameter ranges,scoring criteria is set up,and the state indexes of missile is accumulated with weight.

LI Zhi-qian

Research on Architectural Design of PHM System for Air-to-Air Missile

空空导弹PHM系统架构设计研究

During the laser ranging,the error caused by time-interval measurement error can produce when the pulse width of laser fuze is too wide. So a new range finder method for pulse laser fuze is proposed. The method is first measuring the delay time of transmitted pulse signal and return pulse signal through real-time detecting the center of echo waveform,and then calculating the target range with it. Appling this method a series of range experiments are proceeded,the experimental data are given and the error is analyzed in theory. The results show that the precision of 0. 5 m level is achieved and the ranging precision of the laser fuze is improved,which meets the practical needs.

Li Jin

A Range Finder Method for Pulse Laser Fuze Based on the Center of Echo Waveform

基于回波波形中心的脉冲激光引信测距方法

In order to lower effectively the technical risk of weapon research development,the American Department of Defense( DOD) adopted the notion of Technology Readiness Level( TRL) as well as Technology Readiness Assessment( TRA),and continuously expanded their application field and scope to improve and develop the notion of System Readiness Level( SRL) as well as System Readiness Assessment( SRA). This article introduces the basic concept of TRL and TRA,and then further introduces the basic concept of SRL,SRA and a widely-used assessment method called Matrix-based Model,and applies the assessment method to the airborne guided weapon research development work as a practical instance,presenting an useful reference for TRA of domestic complex integrated systems.

Wang Fan

Application Research on Matrix-Based Model of System Readiness Assessment in Airborne Guided Weapon Research & Development

基于矩阵模型的系统准备度评估在机载制导武器研发中的应用研究

The conception of acquisition techniques of high sensitivity GPS is introduced. According to the way of improving the sensitivity of GPS,the acquisition techniques of current high sensitivity GPS is classified into three modes,which are techniques of upgrading the SNR method,cross-correlation interference mitigation method and assisted GPS acquisition method. On the basis of analyzing the methods of high sensitivity GPS modes,their features are compared and analyzed respectively. The development of techniques of high sensitivity GPS at home and on abroad are reviewed. The key technologies and future trend of high sensitivity GPS acquisition techniques are pointed.

ISSN	1673-5048
h-index	11

Publication Information	Publisher: Editorial Office of Aero Weaponry，Publishing cycle: ，Journal Type: journal，Open Access Journals: Yes
Basic data	Year of publication: 2019，Proportion of original research papers: 0.00%，Self Citation Rate:N.A.， Gold OA Rate: 0.00%
Average review cycle	网友分享经验：50 Weeks

Aero Weaponry

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