ID 原文 译文
48726 运动目标定位性能会受到通道一致性和基线误差等系统非理想因素的影响。 Moving target positioning performance will be affected by channel consistency and baseline error system of non-ideal factors, etc.
48727 介绍了误差等效基线的概念来描述以上误差,并在此基础上提出了一种新的扫描地面运动目标检测(ground moving target indication,GMTI)系统的运动目标定位方法。 This paper introduces the concept of equivalent baseline error to describe the above error, and on this basis this paper proposes a new scanning the ground moving target detection (ground moving target indication, GMTI) system of moving object location method.
48728 该方法的主要步骤包括测量不同误差等效基线对应的杂波抑制锐化比,确定最优误差等效基线及运动目标定位。 The main steps of the method include the different measurement error equivalent baseline corresponding clutter suppression sharpening ratio, determine the optimal equivalent baseline error and the moving target positioning.
48729 此方法的关键步骤是通过令杂波抑制比最大化来估计最优误差等效基线,这确保了估计的最优误差等效基线与数据真实误差特性相吻合。 Key steps of this method is through the clutter suppression ratio maximization to estimate the optimal error equivalent baseline, this ensures that the estimate of the optimal equivalent baseline error in conformity with the real error characteristics data.
48730 因而,其定位性能明显优于采用名义基线的定位结果。 Therefore, the positioning performance is better than using nominal baseline positioning results.
48731 实测数据处理结果验证了方法的性能。 The measured data processing results demonstrate the performance of the proposed method.
48732 相对于平飞运动雷达,俯冲运动垂直向下的运动分量会引入额外的多普勒频率,对杂波的空时分布特性产生重要影响。 Relative to the flight movement radar, dive motion vertical downward movement of the component will introduce additional doppler frequency, the space-time distribution characteristics of clutter.
48733 本文针对弹载俯冲非正侧阵雷达,提出了一种俯冲运动空时信号模型,首先推导了多普勒频率与空间角度的耦合关系的一般表达式,并详细分析了在实际的阵面几何配置情况下,俯冲运动雷达杂波的空时分布特性,相应提出了适于俯冲运动的基于参数模型和配准补偿(parameter model and registration compensation,PM-RC)的杂波抑制方法。 Onboard subduction, the author of this paper is a side array radar, this paper proposes a dive motion space-time signal model, first the doppler frequency is deduced and space point of view, the general expression of coupling relationship of and analyzed in detail in the actual front geometry configuration cases, dive motion radar clutter space-time distribution characteristics, puts forward the corresponding suitable for diving movement based on the parameter model and registration compensation (parameter model and registration compensation, PM - RC) of the clutter suppression method.
48734 最后通过弹载雷达建模仿真分析了俯冲运动对杂波空时特性的具体影响,并验证了杂波抑制方法的有效性。 Last dive motion was analyzed through onboard radar modeling and simulation of clutter space-time characteristics of the specific impact, and verify the effectiveness of the clutter suppression method.
48735 为研究鱼雷服役期间贮存可靠性的分析计算问题,根据鱼雷历次战备转级检测数据,运用等分故障时间内插法,估计各故障发生时间,分别绘制战备转级检测时序图、实转完好与故障状态时序图以及定转完好与故障状态时序图,从而计算鱼雷在不同服役年限的贮存可用度、贮存故障率与贮存可靠度,得出鱼雷贮存质量变化规律。 Served for the study of torpedo during storage reliability analysis and calculation of the problem, according to the torpedo every combat readiness level testing data, using the equal fault time interpolation method, estimates the fault occurrence time, respectively to draw turn combat readiness level testing sequence diagrams, turn in good state and fault sequence diagram and set turn in good state and fault sequence diagram, thus the torpedo is calculated in the different service life of storage availability, storage and storage reliability and failure rate torpedo storage quality variation are obtained.