| 1. | An approach for direction of arrival estimation of distributed sources induced by local scattering
分布式信号源波达方向估计方法 |
| 2. | So far , many methods have been proposed to estimate the nominal bearing of spatially distributed source
迄今为止，已经提出了多种空间分布源波达方向估计方法。 |
| 3. | 4 ) presented method of improving doa estimation performance of distributed sources via projection pretransformation
4 ）提出了利用投影预变换提高分布式目标参数估计性能的方法。 |
| 4. | The thesis studies parameter estimation of distributed sources , which comes from the national defense science technology fund
本论文研究分布式目标高分辨参数估计方法，论文选题来自国防科技预研基金项目。 |
| 5. | In order to estimate the direction of arrival ( doa ) of a broadband distributed source , a class of fast algorithms , such as central frequency algorithm , median algorithm and mean algorithm , are presented
摘要针对宽带分布源到达角估计问题，提出了一类快速的估计算法，即中频法、中值法和均值法。 |
| 6. | 5 ) finally the study result is applied to beamforming of smart antenna and missile fuze system , and the simulation results illustrate that distributed sources are more accurate than point sources with improving effects
5 ）最后将研究成果推广到智能天线的下行波束形成和引信系统角度测量，仿真结果证明分布式目标模型比点目标模型更准确，具有较大的改善效果。 |
| 7. | The main work is : 1 ) this text gives a study of the signal models of two kinds of distributed sources : coherent distributed sources and incoherent distributed sources , analyzes eigenvalue distribution of correlation matrix
主要工作如下： 1 ）研究了两种分布式目标信号模型：相干分布式目标模型和非相干分布式目标模型。并分析了分布式目标协方差矩阵的特征值分布。 |
| 8. | 5 ) based on the noise model with a centro - hermitian covariance matrix , a differential denoising bearing estimator is developed for coherently distributed sources in unknown noise fields . its accuracy and resolution performance is analyzed theoretically and numerically
5 )针对未知噪声环境中相干分布源的方向估计问题，提出了一种差分去噪估计器，并从理论和数值结果两个方面评价了它的精度和分辨率性能。 |
| 9. | The algorithms estimate the doa of the broadband distributed source fron the secondary diagonal elements of the covariance matrices generated from every frequency domain of the received broadband signals , thus avoiding unwrapping of phases
该类算法首先将阵列接收的宽带信号变换到频率域，然后对于每个频率形成阵列接收信号协方差阵，最后由该协方差阵的次对角线元素估计宽带分布源的到达角，其主要特点是避免了相位展开。 |
| 10. | 2 ) the concept of space frequency distribution is introduced into reevaluation of incoherently distributed source model . based on the model , two low - complexity robust bearing estimators are developed . it is proved theoretically that their estimates are asymptotically unbiased and consistent
2 )从空间频率分布的角度重新评价了非相干分布源模型，提出了两种低计算复杂度的稳健的分布源波达方向估计器，并从理论上证明了它们的渐近无偏性和渐近一致性。 |
