ID 原文 译文
17075 首先利用参考子阵与各子阵之间的平移关系,推导每个子阵的近似距离史,解决“非停走停”时间的孔径依赖性需要被近似的问题; Firstly, the shiftingrelationship between the reference receiver and the other receivers is used to derive the approximated rangehistory of every receiver, which conquer the problem of ignoring aperture-dependence of ‘non-hop-go-hop’ time.
17076 然后将每个子阵信号搬移至相同的波束中心距离后,通过方位重构方法将欠采样的多子阵信号转变成满足采样定理的等效单基站信号,再用单基站成像算法处理得到多子阵SAS的成像结果; Then, after the echo signal of each receiver is shift to the same beam centre range, the undersampling multiplereceivers signal can be transformed into the single receiver signal by the azimuth reconstruction, which can beprocessed by the monostatic imaging algorithm to get imaging result.
17077 最后通过仿真实验和实测数据检验算法的有效性。 Finally, the validity of proposedalgorithm is tested by the simulation experiments and real data.
17078 针对均匀线列阵自由度(DOF)受限于阵元数的问题,该文提出一种基于差和共阵的新型互质阵,称为放置互质阵(DCA), To deal with the problem that the Degree Of Freedom(DOF) of uniform linear array is limited by thenumber of elements, a new type of coprime array is proposed called Displaced Coprime Array(DCA).
17079 其借助由接收信号的时域和空域信息组合成的共轭增广矩阵得到等价的差和共阵来进行波达方向(DOA)估计。 It takesuse of the conjugate augmented matrix which is formed by the time and space information of the receivedsignal to obtain the equivalent difference and sum co-array and to estimate the Direction Of Arrival(DOA).
17080 DCA将广义互质阵放置在与原点处单阵元相隔一定距离的位置,实现了和共阵与差共阵的阵元位置互补,从而最大限度上利用和共阵带来的自由度增幅。 DCA places the generalized coprime array at a certain distance from the single array element at the coordinateorigin so that the elements of the sum co-array and the difference co-array are complemented. As a result, theuse of DOF provided by the sum co-array can be maximized.
17081 该文给出了DCA阵元位置和放置距离的闭式表达,随后分别对DCA的差共阵及和共阵的连续阵元及孔洞位置进行了理论分析,同时给出了两者间的关系,说明了DCA的高自由度特性。 In this paper, the closed-form expressions of theelement positions and the placement distance of DCA are given. Then, the performance of the sum co-array andthe difference co-array including the continuous elements and the hole positions is theoretically analyzed, therelationship between the two is given and high DOF of DCA is presented.
17082 多个仿真实验验证了所提阵型DOA估计的有效性。 Multiple simulations verify theeffectivity of DOA estimation using DCA.
17083 群目标跟踪技术是测量空中集群生物目标飞行状态的有效手段,而航迹起始是群目标跟踪的第1步,包括分群检测与航迹确认。 Group target tracking is an efficient method to measure the states of airborne flocks. The first step ofgroup target tracking is track initiation, including target clustering and track promotion.
17084 针对现有算法在分群检测时限制群内目标必须两两相似,在航迹确认时因等效量测残差过大导致航迹误丢弃的问题,该文提出一种基于代数图论的修正贝叶斯群目标航迹起始算法, The state-of-the-artalgorithms require mutual similarity between targets for clustering procedure, and track may be wronglyrejected due to the large residual of equivalent measurement. A modified Bayesian group track initiationalgorithm based on algebraic graph theory is proposed.