Invention Grant
- Patent Title: Method for finding the position of objects using an FMCW radar
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Application No.: US15317887Application Date: 2015-05-06
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Publication No.: US10436890B2Publication Date: 2019-10-08
- Inventor: Benedikt Loesch , Michael Schoor
- Applicant: Robert Bosch GmbH
- Applicant Address: DE Stuttgart
- Assignee: Robert Bosch GmbH
- Current Assignee: Robert Bosch GmbH
- Current Assignee Address: DE Stuttgart
- Agency: Norton Rose Fulbright US LLP
- Agent Gerard Messina
- Priority: DE102014210993 20140610; DE102014213190 20140708
- International Application: PCT/EP2015/059897 WO 20150506
- International Announcement: WO2015/188987 WO 20151217
- Main IPC: G01S13/42
- IPC: G01S13/42 ; G01S7/35 ; G01S13/34 ; G01S13/58 ; G01S13/02 ; G01S13/536 ; G01S13/93

Abstract:
A method for finding a position of an object using a MIMO FMCW radar. A ramp-shaped frequency-modulated radar signal is transmitted as a sequence of time-delayed successive ramps. A switch network is controlled to provide a corresponding switching state for each of the successive ramps. A different selection of antenna elements is used for transmission of each respective ramp. Radar echoes reflected by radar targets are mixed with the transmitted signal and are down-converted. Baseband signals resulting therefrom are transformed into spectra. Each baseband signal is separately subjected to a two-dimensional Fourier transform. A window function is applied to each of the baseband signals prior to the transform being carried out over a ramp index in a second dimension. A different window function is applied for each of the switching states. The spectra are subjected to a frequency-dependent phase correction which compensates for time offsets of the ramps.
Public/Granted literature
- US20170115384A1 METHOD FOR FINDING THE POSITION OF OBJECTS USING AN FMCW RADAR Public/Granted day:2017-04-27
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