ID 原文 译文
7974 依据运动轨迹的周期跳跃特性,运用先集成再分解的轨迹预测思路,首先将运动轨迹序列分解为具有趋势性、周期性和随机性特征的子序列,再针对每项子序列的特征采用相应的子轨迹预测模型,最后将各子轨迹预测模型预测结果的集成作为最终预测值。 On the basis of the movement cycle jump features, integration and then decompose the track prediction, will first trajectory sequence is decomposed into trend, periodic and random characteristics of subsequence, again according to the characteristics of the sequence of each XiangZi, adopts the corresponding track prediction model, the final will be integration of each track prediction model to predict the results as the final predicted value.
7975 由于子序列与子轨迹预测模型具有更高的契合度,使得分解集成轨迹预测算法相对于使用单一模型的轨迹预测算法更具优势。 Because the subsequence and son track prediction model has higher fit, relative to decompose integrated track prediction algorithm using a single model of track prediction algorithm has more advantages.
7976 仿真实验表明,分解集成轨迹预测算法显著提高了轨迹预测精度。 Simulation experiments show that the decomposition integrated track prediction algorithm the track prediction precision is improved significantly.
7977 雷达系统在临近目标分辨中存在近区旁瓣过高的问题,导致了弱目标淹没、临近目标回波主旁瓣混叠等现象。 Exist in the radar system near the target area near the problem of high sidelobe, led to the weak target submerged, near main sidelobe target echo the phenomenon such as aliasing.
7978 针对这一问题,该文提出了一种抑制近区距离旁瓣的正交频分复用(orthogonal frequency division multiplexing,OFDM)多输入多输出雷达波形设计方法。 In order to solve this problem, this paper puts forward a sidelobe suppression area near distance of orthogonal frequency division multiplexing (orthogonal frequency division multiplexing, OFDM) multiple input multiple output radar waveform design method.
7979 首先,构造一组基于相位编码调制的OFDM发射波形集,在此基础上,以极小化极大原理和近区积分旁瓣水平建立目标函数,令发射波形恒模为约束条件; First, construct a set of based on phase coded modulation OFDM waveform launch set, on this basis, the minimax principle and the recent area integral sidelobe level to establish objective function, the constant modulus emission waveforms as constraint conditions;
7980 然后,借助发射波形与相位的对应关系,将波形设计转化为无约束优化问题,并利用Broyden-Fletcher-Goldfarb-Shanno算法求解。 Then, using waveform and phase of correspondence that the waveform design is transformed into unconstrained optimization problem, and use the Broyden - Fletcher - Goldfarb - Shanno algorithm.
7981 理论分析和仿真结果表明,该文方法较现有方法具有更好的近区旁瓣抑制特性和更低的运算复杂度。 Theory analysis and simulation results show that the method has better than the existing methods of sidelobe suppression characteristics of area near and lower computation complexity.
7982 针对装备保障平台战时如何优化运用的问题,根据平台在机动中遭敌火力打击及自我维修过程所具有的马尔可夫性特点,将受打击时间按照打击次数离散化,从而将该过程描述为状态离散、时间离散的马尔可夫链,由此构建了无条件自我维修和有条件自我维修的马尔可夫链模型,实现了单平台战时运用优化决策。 Aiming at the problem of equipment support platform war how to optimize the use of, depending on the platform in the mobile overwhelmed by enemy fire and self repair process has the markov property, will hit the time according to hit the number of discretization, which describe the process as a discrete state, discrete time markov chain, thus build the unconditional self repair and conditional markov chain model of self maintenance, has realized the single stage using optimization decision in wartime.
7983 基于战场抢修率最大化的目标,运用规划理论,构建了综合考虑遭敌打击的装备保障平台编组优化模型,提出了平台编组战时运用优化决策分析方法。 Based on maximizing the battlefield repair rate, on the basis of the theory of planning, building a comprehensive consideration overwhelmed by enemy grouping optimization model of equipment support platform, platform marshalling wartime use optimization decision analysis method is proposed.