公开(公告)号：US20170254750A1

公开(公告)日：2017-09-07

申请号：US15451160

申请日：2017-03-06

Applicant: THE ARIZONA BOARD OF REGENTS ON BEHALF OF THE UNIVERSITY OF ARIZONA

Inventor： Hao Xin ,  Min Liang ,  Mark A. Neifeld ,  Tim Harvey

IPC: G01N21/55 ,  H03M7/30

CPC classification number: G01N21/55 ,  G01N22/00 ,  G01N2201/123 ,  G01N2201/126 ,  G01V8/005 ,  H03M7/30 ,  H03M7/3062

Abstract: A threat detection system having a reconfigurable reflect-array and compressive sensing unit to effectively detect objects that are a threat is presented. A statistical library, having a wide range of threat and non-threat examples and capable of incorporating new examples while being used, is utilized by several optimization algorithms to calculate an optimal illumination pattern for compressive sensing detection. The reflect-array is configured to produce the optimal illumination pattern via a plurality of reflect-array elements. In this way, a plurality of data may be parallel processed, thereby increasing the detection speed and reducing cost.

公开(公告)号：US20210278518A1

公开(公告)日：2021-09-09

申请号：US16325111

申请日：2017-08-15

Applicant: THE ARIZONA BOARD OF REGENTS ON BEHALF OF THE UNIVERSITY OF ARIZONA

Inventor： Hao Xin ,  Min Liang ,  Siyang Cao

IPC: G01S13/42 ,  G01S13/931 ,  G05D1/02

Abstract: A high performance, low-cost automotive radar is designed by mounting receivers around a 3D printed Luneburg lens. With this configuration, the antenna radiation pattern is maintained for all angles, (which means no beam deformation). Further, the present radar is capable of performing detection at all azimuth and elevation angles with high angle resolution and broadband operation. The radar adaptively adjusts its spatial sensing pattern, sweeping frequency band, pulse repetition frequency and coherent processing interval according to the environment. This is accomplished by initially performing a rough scan, which updates sensing results via a narrow bandwidth waveform and wide beam scanning. When interested objects are identified, a high-resolution detailed scan is performed in a specific region of interest. In this way, a much more effective detection can be obtained. Moreover, a method of mitigating interference of the 3D printed Luneburg lens based radar and a method of improving the angle resolution using a lens based MIMO approach is disclosed.