航空电子系统综合核心处理器仿真软件设计

在未来的航空电子体系结构中，综合核心处理器（Integrated Core Processor，ICP）将成为整个航空电子系统的核心。本文首先对ICP进行了理论分析，提出了ICP建模的重点，然后采用面向对象、模块化的方法进行了ICP仿真软件的设计，建立了ICP仿真系统模型。软件的仿真核心基于离散事件仿真方法，采用双层任务调度算法，并结合航空电子系统分区管理的特点，模拟ICP系统对任务的处理过程。最后进行了实例仿真，对仿真结果进行分析，验证了模型的正确性。     

基于VxWorks的空调系统控制软件设计

基于Vx Works软件环境,针对空调系统工作模式多、工作模式之间逻辑复杂等特点开发了空调系统的控制软件。将系统的功能按照任务优先权行划分,并采用状态转换机实现的模式间的转换。通过Tornado软件调试环境,对软件设计进行了修改和完善,保证了空调系统软件的正确性。     

基于博弈的多目标弹药调度策略优化研究

针对作战部队弹药调度策略问题,综合考虑不同作战部队对弹药调度时间因素和安全因素需求程度的差异,通过博弈模型对多目标问题进行度量,进而结合遗传算法对弹药调度策略进行优化。仿真结果表明,本文构建的博弈模型能够更加合理地为不同环境下具有差异化需求的弹药调度策略进行优化。     

An aggregate flow based scheduler in multi-task cooperated UAVs network

Unmanned Aerial Vehicles (UAVs) cooperative multi-task system has become the research focus in recent years. However, the existing network frameworks of UAVs are not flexible and efficient enough to deal with the complex multi-task scheduling, because they are not able to perceive the different features. In this paper, a novel cooperated UAVs network framework for multi-task scheduling is proposed. It is a three-layer network including a core layer, an aggregation layer and an execution layer, which enhances the efficiency of multi-task distribution, aggregation and transmission. Furthermore, an AggreGate Flow (AGFlow) based scheduler is dedicatedly designed to maximize the task completion rate, whose key point is to aggregate flows belonging to one task during the multi-task transmission of UAVs network and to allocate priority by calculating the urgency-level of each AGFlow. Simulation results demonstrate that, compared with that of state-of-the-art scheduler, the average task completion rate of AGFlow based scheduler is raised by 0.278.     

Spacecraft formation-containment flying control with time-varying translational velocity

This paper investigates the problem of Spacecraft Formation-Containment Flying Control (SFCFC) when the desired translational velocity is time-varying. In SFCFC problem, there are multiple leader spacecraft and multiple follower spacecraft and SFCFC can be divided into leader spacecraft’s formation control and follower spacecraft’s containment control. First, under the condition that only a part of leader spacecraft can have access to the desired time-varying translational velocity, a velocity estimator is designed for each leader spacecraft. Secondly, based on the estimated translational velocity, a distributed formation control algorithm is designed for leader spacecraft to achieve the desired formation and move with the desired translational velocity simultaneously. Then, to ensure all follower spacecraft converge to the convex hull formed by the leader spacecraft, a distributed containment control algorithm is designed for follower spacecraft. Moreover, to reduce the dependence of the designed control algorithms on the graph information and increase system robustness, the control gains are changing adaptively and the parametric uncertainties are handled, respectively. Finally, simulation results are provided to illustrate the effectiveness of the theoretical results.     

基于Rough Set 和综合评判的进场航班排序

终端区资源的高效利用对空中交通流量管理效率的提高具有重要作用,进场航班排序是终端区资源利用的关键环节,所以需要研究终端区进场航班的排序问题。利用模糊综合评判方法,考虑排序过程中的多种影响因素建立综合评判指标体系,根据粗糙集理论客观地确定各评判指标权重。利用算例对基于粗糙集理论的模糊综合评判方法进行了验证,表明方法在终端区排序问题中的可行性和有效性。     

天文观测相机的视频处理电路的设计

在讨论传统的天文观测相机视频处理方式的基础上,设计了以高集成度的专用CCD视频信号处理芯片TDA8783为核心的相机视频处理电路方案.对所设计的视频处理电路进行了软硬件联调测试,仿真和实验的结果表明,电路系统运行稳定,噪声低,方案对后续观测相机系统的小型化具有较好的参考意义.     

基于最少可用飞机数的航班编组计划

研究了航空公司在运力紧张状况下的航班编组计划问题.首先根据单枢纽航线结构的特点,将航班编组计划问题转化为在枢纽机场的航班节编组问题,然后通过构造描述航班节间衔接关系的传递图,并利用传递图与其对应无向偶图的关系,将需用飞机数最少的航班节编组计划问题转化为求对应无向偶图的最小权最大匹配,从而构造出一个解决运力紧张状况下航班编组计划的多项式算法.最后通过一个算例说明了该算法的应用.     

微波辐射定标场地面接收机通道自校准设计

微波辐射定标场的地面接收机是卫星雷达外定标的主要设备之一，由于整个雷达系统对精度要求很高，因此作为系统外定标的地面接收机，其自身参数的实时校准就显得尤为重要。本文对地面接收机的接收通道设计了一种自校准方案，阐述了其校准原理和校准步骤，并给出了设计实现框图，分析了其中的关键技术。     

垂直攻击型武器末制导系统设计与分析

介绍了垂直攻击型武器末制导段的特点,分析了其制导控制系统的特殊要求。针对常规控制方案的不足,提出侧力板控制方案,推导出一种考虑速度变化的变系数比例导引律,并结合某型号飞行器进行了仿真。结果证明,侧力板控制与变系数导引律明显优于常规控制和常系数比例导引律,完全可以满足垂直攻击型武器在末制导段的要求,该项研究为型号设计提供了具有实际参考价值的结论。