坚持以科学发展观谋求我军现代化建设跨越式发展

以胡锦涛为总书记的党中央提出的科学发展观对我军现代化建设跨越式发展有着重大的推动作用。坚持全面发展观,可以加强我军现代化建设跨越式发展的宏观规划;坚持协调发展观,可以科学处理我军现代化建设跨越式发展中的内外关系;坚持可持续发展观,可以建立健全我军现代化建设跨越式发展的动力机制;坚持以人为本的发展观,可以快速提升军事人才的综合素质。     

基于循环累积量的QAM信号载波相位估计算法

利用通信信号的循环平稳特性,在循环累积量域内提出了一种基于高阶循环累积量的载波相位估计算法,该算法通过提取观测样本的循环累积量特征并对其进行归一化,有效消除了信号能量、时延和成形脉冲参数对算法性能的影响。理论分析和仿真结果均证明了算法的正确性和有效性。     

毫米波合成孔径雷达成像技术

毫米波合成孔径雷达(SAR:Synthetic Aperture Radar)成像技术是雷达技术、现代电子技术和数字信号处理技术的有机结合,使系统雷达的功能发生了质的飞跃.随着SAR成像处理技术的发展,其成像质量不断提高,成为当今高科技条件下一种不可取代的探测、侦察手段,在军事、经济和科学研究等方面都有重大价值和广泛应用前景.主要介绍了毫米波成像雷达与微波雷达相比具有的技术特点,较详细地讨论了毫米波合成孔径雷达的成像原理技术.     

坦克传动装置润滑系统传动油的流动仿真研究

应用一维流体仿真软件FLOWMASTER2,对坦克传动装置润滑系统的流动进行了模拟,提出了基于FLOWMASTER2软件的传动装置润滑系统的稳态流动仿真模型,并对某型坦克液力机械传动装置润滑系统的流动进行了仿真,预测了润滑系统的流量、流速和压力分布。该研究为坦克及其它车用传动装置润滑系统的流动性能提供了一种有效的理论分析手段和仿真方法。     

A novel signal feature extraction technology based on empirical wavelet transform and reverse dispersion entropy

Feature extraction is an important part of signal processing, which is significant for signal detection, classification, and recognition. The nonlinear dynamic analysis method can extract the nonlinear characteristics of signals and is widely used in different fields. Reverse dispersion entropy (RDE) proposed by us recently, as a nonlinear dynamic analysis method, has the advantages of fast computing speed and strong anti-noise ability, which is more suitable for measuring the complexity of signal than traditional permutation entropy (PE) and dispersion entropy (DE). Empirical wavelet transform (EWT), based on the theory of wavelet analysis, can decompose a complex non-stationary signal into a number of empirical wavelet functions (EWFs) with compact support set spectrum, which has better decomposition performance than empirical mode decomposition (EMD) and its improved algorithms. Considering the advantages of RDE and EWT, on the one hand, we introduce EWT into the field of underwater acoustic signal processing and fault diagnosis to improve the signal decomposition accuracy; on the other hand, we use RDE as the features of EWFs to improve the signal separability and stability. Finally, we propose a novel signal feature extraction technology based on EWT and RDE in this paper. Experimental results show that the proposed feature extraction technology can effectively extract the complexity features of actual signals. Moreover, it also has higher distinguishing ability for different types of signals than five latest feature extraction technologies.     

Cooperative interception with fast multiple model adaptive estimation

For the case that two pursuers intercept an evasive target, the cooperative strategies and state estimation methods taken by pursuers can seriously affect the guidance accuracy for the target, which performs a bang For the case that two pursuers intercept an evasive target, the cooperative strategies and state estimation methods taken by pursuers can seriously affect the guidance accuracy for the target, which performs a bang-bang evasive maneuver with a random switching time. Combined Fast multiple model adaptive estimation (Fast MMAE) algorithm, the cooperative guidance law takes detection configuration affecting the accuracy of interception into consideration. Introduced the detection error model related to the line-of-sight (LOS) separation angle of two interceptors, an optimal cooperative guidance law solving the optimization problem is designed to modulate the LOS separation angle to reduce the estimation error and improve the interception performance. Due to the uncertainty of the target bang-bang maneuver switching time and the effective fitting of its multi-modal motion, Fast MMAE is introduced to identify its maneuver switching time and estimate the acceleration of the target to track and intercept the target accurately. The designed cooperative optimal guidance law with Fast MMAE has better estimation ability and interception performance than the traditional guidance law and estimation method via Monte Carlo simulation.     

装备质量监控中模糊评价装备质量模型的研究

装备质量的评价,是我军后勤工作的重要课题,质量评估的准确性、合理性,一定程度上影响着我军装备的使用和发展。本文提出了一种较科学的装备质量评估的模型和方案。     

自主创新持续发展——"三大规范"经验交流

“三大规范”是企业一项重要的基础工作,主要是通过总结企业在设计、制造、试验各方面的成熟经验和技术诀窍,避免新的技术人员重复过去的失败,在研制和生产的源头及关键环节上降低风险,保证产品质量,保证型号研制一次成功,提高企业的核心竞争力。本文从领导重视,保证项目顺利开展;系统规划,确定三大规范项目;严格的工作过程,保证项目质量;实施效果等4个方面总结和回顾了“三大规范”编制工作,列举了大量的事例说明了这项工作取得的实效。     

坚持以人为本是我军思想政治教育的主题

纵观我军80年思想政治教育的历程,始终坚持以人为本是在长期革命和建设实践中积累起来的一条宝贵经验。我军在思想政治教育中坚持以人为本的基本经验主要有:以从现实的人出发为着眼点,以不断提高人的素质为根本任务,以充分发挥人的主体作用为主要手段,以满足人的物质利益为重要内容。这些宝贵的历史经验,对于当前贯彻落实《中国人民解放军思想政治教育大纲(试行)》要求,推进我军思想政治教育在新世纪新阶段的实践和理论跨越发展,具有重要的意义。     

基于LDA算法的一维距离像特征提取

在线性分辨分析(LDA)基础上,通过遗传算法寻找Fisher准则下最优的线性映射中心和相应的最优映射,使不同模式在特征空间内具有最大的可分离性,并将该算法用于雷达目标一维距离像特征提取与识别中。实验表明,和原算法相比,新算法在特征提取性能和目标正确识别率上有较大提高,说明了算法的有效性。