一种雷达目标模拟器的DSP软件设计

为了配合某型C波段宽带雷达系统进行设备调试和功能检查,模拟器采用软硬件结合的方法。当雷达发射窄带信号时,目标回波通过对雷达发射信号进行延迟、频移等实现;当雷达发射宽带信号时,采用波形预先存储的方式进行回波的产生。模拟器通过操控计算机输入不同的雷达参数、目标特性数据,能模拟雷达所需的射频目标回波信号,以达到不同的测试要求,具有使用灵活、低成本、扩展性强的特点。     

一种引入目标运动速度的多站无源时差定位方法

在多站测角的被动目标跟踪中,目标的状态与角度量测值之间存在非线性关系,现有的方法主要是对其进行线性化,但线性化过程会带来滤波精度的下降,甚至会产生滤波发散而丢失目标。针对这一问题提出一种新方法,由于利用多普勒测速原理可以获得目标运动速度,因此将目标运动速度引入量测方程中,通过附加独立信息观测通道以期提高目标跟踪的收敛精度和收敛速度。仿真结果证实会使滤波算法收敛速度加快,收敛精度提高,改善跟踪性能。     

基于神经网络的舰艇指控系统故障诊断专家系统

针对舰艇指控系统设备故障的复杂性、多样性,采用神经网络和专家系统相结合的方法,构建了舰艇指控系统故障诊断系统,阐述了该系统的基本结构,以及知识库、推理机和解释机的实现方法。较好地解决了舰艇指控系统故障诊断问题。为舰艇指控系统故障诊断提出了一种新的途径。     

CEC条件下“标准6”舰空导弹

简述了CEC（协同作战能力）系统的组成、功能及“标准6”舰空导弹的基本特点和主要性能指标。分析了在CEC系统支持下,“标准6”舰空导弹的作战流程及作用。     

水面舰艇超视距目标定位方法及精度分析

总结了水面舰艇舰载超视距雷达和舰载直升机进行超视距目标定位的方法,对典型超视距雷达和直升机目标定位方法的精度误差来源及构成进行了分析,提出了舰载雷达和直升机在远程定位的作战使用中的战术要求。     

作战方案智能推演技术研究

为了明确作战任务,分析作战方案,检验作战计划,预估作战效果,在作战行动实施之前,有必要进行作战方案模拟推演,以提供科学可靠的辅助决策建议。文章研究了作战方案智能推演技术,提出了智能推演的体系结构,重点研究了方案解析和AI兵力建模等关键技术,为方案优化和辅助决策提供了基础技术支撑。     

基于FCE对近岸岛屿进攻战斗炮兵部署优化研究

战斗部署的内容是决心方案的主体部分,优化战斗部署方案,可提高作战指挥决策的科学性。论文根据战斗部署的定义和战斗部署的要求,建立了近岸岛屿进攻战斗炮兵部署的评价指标体系,并采用层次分析法确定其权重,最后使用模糊综合评价法对战斗部署方案进行评估。     

高频感应热源应用于水火弯板工艺的可行性研究(英文)

The purpose of this paper is to investigate the feasibility of high-frequency induction heat for the line heating process through a series of experimental studies and numerical calculations. The results show that the heating temperature of induction heating meets the demands of steel plate bending, and the deformation of a steel plate heated by induction heating can achieve the same effect as flame heating. Meanwhile, the finite element model of moving induction heating of the plate is developed, and the comparison of the residual strain fields and transverse shrinkage between these two kinds of heating shows that great similarity has been achieved.     

舰船舷侧液舱防护设计(英文)

Based on the traditional Smoothed Particle Hydrodynamics (SPH) algorithm, the linked-list search algorithm combined with the variable smoothing length and square support domain was put forward to improve the calculation efficiency and guarantee the calculation accuracy. The physical process of high velocity fragment impact on a broadside liquid cabin was programmed for simulation. The numerical results agreed well with those of the general software ANSYS AUTODYN, which verifies the effectiveness and feasibility of the numerical method. From the perspective of the outer plate thickness of the liquid cabin, the width of the liquid cabin, and incident angle of the fragment, the influence of these parameters on protective mechanisms was analyzed to provide a basis for protective design of a broadside liquid cabin. Results show that the influence of outer plate thickness is not obvious; therefore, the conventional design can be adopted in the design of the outer plate. The width of the liquid cabin has a great influence on the residual velocity of the fragment and the width of the liquid cabin should be designed to be as wide as possible under the premise of meeting other requirements. There is a certain incident angle in which the velocity attenuation of the fragment is most obvious, and the high-pressure zone near the inner plate is asymmetric. The inner plate of liquid cabin should be strengthened according to the hull form, principal dimensions, and vulnerable points.     

船用柴油机组调速系统仿真研究

模拟电力系统的模拟研究中,柴油机及其调速系统直接影响系统机电暂态过程的准确性,对于判别系统受到大扰动后的暂态稳定和受到小扰动后的静态稳定性具有重要意义。从电站柴油发电机组的运动方程出发,在柴油机及其调速器数学模型的基础上,利用数字仿真计算机实时计算模拟转矩指令,用以控制一套高性能交流调速系统,从而实现电站柴油发电机组中柴油机及其调速器与系统转动惯量的数模混合模拟。实验表明,该模拟系统通用性强,响应速度快,准确性较高。