公开(公告)号：US20220404466A1

公开(公告)日：2022-12-22

申请号：US17682973

申请日：2022-02-28

Applicant: University of Kansas

Inventor： Christian Curtis Jones ,  Lumumba Harnett ,  Charles Andrew Mohr ,  Shannon David Blunt

IPC: G01S7/41

Abstract: The present application provides techniques for reducing noise in sensor-based systems, such as radar systems. In particular, techniques referred to background supplemental cancellation (BaSC) and background supplemental loading (BaSL) are disclosed and facilitate improved detection of moving targets in certain types of radar systems, such as radar systems based on Reiterative minimum-mean square error (RMMSE) estimation formulations. The BaSC technique may utilize a hard cancellation, where clutter cancellation is performed prior to estimation, while the BaSL technique may utilize a “soft” cancellation technique whereby clutter cancellation is performed jointly with estimation. The clutter cancellation provided via the BaSC and BaSL techniques improves the accuracy of the radar system with respect to performing target detection.

公开(公告)号：US20210132211A1

公开(公告)日：2021-05-06

申请号：US17086006

申请日：2020-10-30

Applicant: University of Kansas ,  Government of the United States, as represented by the Secretary of the Air Force

Inventor： Patrick M. McCormick ,  Cenk Sahin ,  Shannon David Blunt ,  Justin G. Metcalf

IPC: G01S13/538 ,  G01S7/00

Abstract: Systems and methods of embodiments provide a feasible approach to implementing Far-Field Radiated Emission Design (FFRED) techniques suitable for simultaneous transmission of radar and communication signals. A set of signals for transmission and a transmission direction for each signal of the set of signals may be determined. The set of signals includes at least a first signal associated with a first transmission direction and a second signal associated with a second transmission direction that is different from the first direction. An optimization problem is configured based on characteristics of an antenna array and the set of signals and then solved to identify a set of waveforms suitable for transmitting the signals. The set of waveforms may include at least two waveforms, each of the at least two waveforms configured for transmission by a different antenna element of the antenna array. The determined waveforms may be coherent in the far-field and suitable for power efficient transmission.