A method of direction of arrival (DOA) and direction of departure (DOD) angle estimation based on polynomial rooting for bistatic multiple-input multiple-output (MIMO) radar with uniform circular array (UCA) configuration is proposed in this paper. The steering vector of the UCA is firstly ...
isamenabletotheapplicationofspatialsmoothing.Inthe caseofanidealuniformcirculararraythetransformationis baseduponthespatialDFT,firstproposedbyDavis[131in thecontextofbeamfonning,andrecentlyappliedtodirection findingbyDoronetal.[14],forwidebandcoherentsubspace processing,andbyTewfikandHong[151,[161andZotlowski and...
Microphones are placed in a uniform circular array and are finely synchronized within a few microseconds. We apply the Approximate Maximum Likelihood (AML) method to estimate the source direction-of-arrival (DOA) and perform beamforming ... CE Chen,AM Ali,H Wang,... - Fifth International Conf...
A comprehensive study is performed to investigate the performance of a non-uniform circular array interferometer in a real time 3-dimensional direction finder. The angular range of view is supposed to be 65 degrees vertically and 120 degrees horizontally, which is suitable for airborne applications....
Direction finding with uniform circular arrays via phase mode excitation and beamspace root-MUSIC -1. Recently, beamspace root-MUSIC was adapted for use in conjunction with a uniform circular array (UCA) using the interpolated array concept of Friedland... M.D. Zoltowski,CP Mathews - IEEE ...
For the problem defmed above, this means that there will be 4 facets in the 6-direction, and 18 facets in the (j)-direction. Figure 6.5 shows this solution. The central circular region is still flat, however the fall-off region has been significantly reduced. The result is a more ...
Based on the depth research on extension array manifold of uniform circular, for some uniform circular arrays which had subarrays with the nature of rotational invariance and had the nature of central symmetry two ESPRIT algo-rithms were presented, the first algorithm reduced one time of SVD, th...
针对均匀圆阵的DOA估计,提出了一种改进的Toeplitz解相干DOA估计算法。该算法利用模式空间变换算法,将均匀圆阵变为虚拟均匀线阵,在此基础上利用接收数据协方差矩阵的行、列分别构造Toeplitz矩阵并取均值,以此来改变协方差矩阵的数据结构,使协方差矩阵的秩得到有效恢复,
The elements of a spatially aperiodic phased array antenna have an unequally spaced circular distribution, that is effective to decorrelate angular and linear separations among elements of the array. For any radial direction passing through an element of the array, the vector distance from any point...
a planar array is needed when estimates of source azimuth and elevation are required. Such well-known planar arrays include the two-orthogonal uniform linear array (the L-shaped array) [1], the rectangular array [2], and the uniform circular array (UCA) [3–7]. The UCA is able to prov...