ID |
原文 |
译文 |
18305 |
首先,在IMM-GM-PHD算法预测过程完成的基础上,引入密度检测机制,利用相关域为所有预测高斯分量挑选有效量测,结合密度聚类(DBSCAN)算法检测是否出现新编队目标。 |
Firstly, based on the completion of the IMM-GM-PHD algorithm prediction process, thedensity detection mechanism is added, and the correlation domain is used to select effective measurement for allpredicted Gaussian components, and the Density-Based Spatial Clustering of Applications with Noise(DBSCAN) algorithm is combined to detect whether a new formation target appears. |
18306 |
其次,在IMM-GM-PHD算法状态更新完成的基础上,利用更新高斯分量的组成情况完成模型概率的更新。 |
Secondly, based on thecompletion of the state update of the IMM-GM-PHD algorithm, the update of the model probability iscompleted by updating the composition of the Gaussian component. |
18307 |
最后,在状态估计优化过程中,结合编队目标的特点,加入相似度判别技术,利用杰森-香农(JS)散度度量高斯分量间的相似度,剔除没有相似分量的高斯分量,进一步优化估计结果。 |
Finally, in the process of state estimationoptimization, combined with the characteristics of formation targets, the similarity discrimination technique isadded, and the Jensen-Shannon (JS) divergence is used to measure the similarity between Gaussiancomponents, and the Gaussian components without similar components are eliminated, and the estimationresults are further optimized. |
18308 |
仿真结果表明,该文方法能够快速有效地跟踪非同时出现的多编队机动目标,具有较好的跟踪性能。 |
The simulation results show that the proposed algorithm can track multi-groupmaneuvering targets quickly and effectively, and has better tracking performance. |
18309 |
为了有效地抑制干扰信号并进一步提高雷达系统的性能,该文提出一种基于2维相控阵-MIMO雷达的联合发射子阵划分和波束形成设计方法。 |
In order to suppress effectively the interference signal and improve further the performance of radarsystem, a joint transmitting subarray partition and beamforming design method based on two-dimensionalphased-MIMO radar is proposed. |
18310 |
该方法首先将MIMO雷达系统的发射阵列等分成一定数目的非重叠子阵并给每个天线分配相同的发射能量,以确保发射信号具有恒模特性; |
Firstly, the transmitting array of MIMO radar system is equally partitionedinto a number of non-overlapping subarrays and the transmit power of each antenna is equal, so as toguarantee that the transmit signal has constant modulus characteristic. |
18311 |
其次,在一定的约束条件下,以最大化接收波束形成器的输出信干噪比为准则建立关于子阵结构、每个子阵对应的发射波束形成权矢量以及接收波束形成权矢量的优化模型,并采用循环迭代方法进行求解。 |
Then, the optimization model for subarray structure of transmitting array, transmit beam former weight vectors and receive beamformer weight vector is established by maximizing the output signal-to-interference-plus-noise ratio of the receive beam former under certain constraint conditions. |
18312 |
仿真结果证实了所提方法的正确性和有效性。 |
Simulation results demonstrate the correctness and effectiveness of theproposed method. |
18313 |
宽带分布式相参雷达技术能够有效提升目标测量精度和识别性能,具有重要的研究价值。 |
Wideband distributed coherent radar technology can effectively improve the target measurementaccuracy and recognition performance, and has important research value. |
18314 |
针对现有雷达装备一般不具有同时对正负调频率宽带线性调频信号进行去斜处理的能力,即在接收相参合成阶段无法通过正负调频率宽带去斜方式获取宽带信号发射相参所需延时相位值的问题, |
For the existing radar equipmentgenerally does not have the ability to stretch the positive and negative frequency modulation rate widebandLFM signal simultaneously, that is the problem that the delay phase value of wideband signal transmitcoherent can not be obtained by wideband stretch method in receive coherent synthesis phase. |