ID 原文 译文
2633 对该算法的统计特性,虚警概率和检测概率进行理论推导,并对检测流程进行了实验仿真,验证了算法有效性。 The statistical properties of the algorithm, the false alarm probability and the detection probability are theoretically derived, and the experimental simulation is carried out to verify the effectiveness of the algorithm.
2634 本文从单基地雷达抗干扰的应用需求出发,分析了现有单基地雷达体制抗干扰的现状以及面临的困难。 This work is motivated by the increasing demand on anti-jamming techniques in radar systems. The current challenging issues on the anti-jamming task in conventional radar frameworks are outlined.
2635 针对欺骗式干扰对抗的难题,提出了基于新体制波形分集阵雷达的抗主瓣方向欺骗式干扰思路,利用频率分集阵(Frequency Diverse Array,FDA)多输入多输出(Multiple-Input Multiple-Output,MIMO)雷达发射维自由度,实现真实目标和转发假目标在发射维度的区分, Focused on deceptive jamming countermeasure issue, a novel framework, referred to as waveform diverse array (WDA)radar, is proposed to address theanti-jamming problem. Utilizing the additional degrees-of-freedom (DOFs)in transmit spatial frequency in frequency di-verse array (FDA)multiple-input multiple-output (MIMO)radar, the true target and repeated false target can be isolated inthe transmit spatial frequency domain.
2636 在部分先验知识的条件下,初步论证了 FDA-MIMO 雷达抗欺骗式干扰特别是主瓣欺骗式干扰的可行性。 Moreover, this paper investigates the feasibility by using the suggested FDA-MIMOradar to suppress the deceptive jamming signals, even those from the mainlobe direction, with help of some information ontrue target obtained in earlier detection stage.
2637 同时考虑转发式欺骗干扰在时间维的伪随机特性,提出了基于多假设检验的干扰样本挑选方法,大大提高了干扰协方差矩阵的估计性能。 In consideration of the random distribution of repeated false target in time do-main, a jamming signal sample selection approach based on multi-hypothesis test is proposed, which evidently improves the estimation accuracy of jamming covariance matrix.
2638 最后给出了 FDA-MIMO 雷达抗主瓣欺骗式干扰的分析与仿真结果。 Further analysis and simulation results are provided to confirm the effec-tiveness of the proposed waveform diverse array technique.
2639 当前基于博弈理论的网络安全研究成果难以应用于实时、连续、随机对抗的网络攻防过程。 The current research of network security based on game theory fails to analyze the real-time, continuous, and random network attack and defense process.
2640 本文针对网络安全防御的实时性和网络状态变化的随机性,基于动态、实时对抗的视角分析攻防行为, For the randomness of security states and the real-time character of networkdefense decision-making, we analyzed the network attack and defense behaviors from the view of dynamic and real-time con-frontation.
2641 在结合微分博弈模型和 Markov决策方法的基础上进行扩展,构建 Markov 攻防微分博弈模型,分析具有多个阶段且每阶段持续时间较短的攻防过程; Then we combined and extended the differential game model and Markov decision-making method. On these ba-sis, a Markov attack-defense differential game model is constructed, which can be adopted to analyze the multi-stage attackand defense process with short duration in each stage.
2642 提出多阶段博弈均衡解计算方法,设计多阶段最优防御策略选取算法。 Besides, a multi-stage game equilibrium solution is proposed, and anoptimal defense strategy selection algorithm is designed.