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Method, device and system for processing radar signals

A technology of radar signals and radar antennas, applied in measuring devices, radio wave measuring systems, utilizing re-radiation, etc., can solve the problems of complex CFAR algorithms, post-processing delays, high-cost computing capabilities, etc.

Active Publication Date: 2014-12-24
INFINEON TECH AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] CFAR algorithms are often complex and require a significant amount of time and / or resources, e.g., high cost computing power
Post-processing becomes delayed in cases where they require several clock cycles to provide results, which results in limited real-time (or near-real-time) capabilities of the overall system

Method used

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  • Method, device and system for processing radar signals
  • Method, device and system for processing radar signals
  • Method, device and system for processing radar signals

Examples

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Embodiment Construction

[0033] A first embodiment relates to a method for processing radar signals comprising digitized data received by at least two radar antennas, the method comprising the steps of:

[0034] - determining the CFAR result from the FFT result based on the data received by the first antenna;

[0035] - Applying the CFAR result to the FFT result based on the data received by the second antenna.

[0036] A second embodiment relates to a device for processing radar signals,

[0037] - comprising an FFT engine for determining an FFT result based on digitized data received from at least two antennas;

[0038] - includes an operational CFAR engine,

[0039] - in calculation mode, for determining the CFAR result based on the FFT result of one of the antennas; and

[0040] - in filter mode, for filtering the FFT results of at least one other antenna based on the CFAR results determined in calculation mode.

[0041] A third embodiment relates to a module comprising at least two devices, a...

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PUM

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Abstract

The invention discloses a method, a device and a system for processing radar signals. An embodiment relates to a method for processing radar signals. The radar signals may include digitized data received by at least two radar antennas. The method may include determining CFAR results on FFT results based on data received by a first antenna, and applying the CFAR results to FFT results based on data received by a second antenna.

Description

technical field [0001] The present invention relates to radar signal processing, and in particular to methods, devices and systems for processing radar signals. Background technique [0002] Embodiments relate to radar applications and, in particular, to efficient ways to process radar signals obtained by at least one radar sensor, for example via at least one antenna. In particular the processing of radar signals in this context refers to radar signals received by sensors or antennas. [0003] In automotive, several radar variants are used in various application scenarios. For example, radar can be used for blind spot detection (parking assistant, pedestrian protection, cross traffic), collision mitigation, lane change assistance, and adaptive cruise control. Many use case scenarios for radar applications may be for different directions (eg, backward, sideways, forward), varying angles (eg, azimuth), and / or different distances (short, medium, or long range). For example,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S7/02G01S13/931
CPCG01S7/02G01S13/02G01S13/343G01S13/931G01S7/354G01S7/028G01S7/356G01S13/93G01S7/2922G01S7/2927G01S7/2883G01S7/288
Inventor A. 罗歇R. 伊尼纳斯
Owner INFINEON TECH AG