High-Speed FMCW Radar Frequency Synthesizer With DDS Based Linearization

Stefan Scheiblhofer; Stefan Schuster; Andreas Stelzer

doi:10.1109/lmwc.2007.895732

High-Speed FMCW Radar Frequency Synthesizer With DDS Based Linearization

Stefan Scheiblhofer, Stefan Schuster, Andreas Stelzer

Institute for Communications Engineering and RF-Systems

Research output: Contribution to journal › Article › peer-review

Abstract

Recently, we introduced a software linearization technique for frequency-modulated continuous-wave (FMCW) radar applications using a nonlinear direct digital synthesizer (DDS) based frequency source. In this paper we present a method that uses this unconventional, cost efficient, basically nonlinear synthesizer concept, but is capable of linearizing the frequency chirp directly in hardware, by means of defined sweep predistortion. Additionally, the concept is extended for the generation of defined nonlinear frequency courses, and verified on measurements with a 2.45 GHz FMCW radar prototype.

Original language	English
Pages (from-to)	397-399
Number of pages	3
Journal	IEEE Microwave and Wireless Components Letters
Volume	17
Issue number	5
DOIs	https://doi.org/10.1109/lmwc.2007.895732
Publication status	Published - May 2007

Fields of science

202019 High frequency engineering
202029 Microwave engineering
202033 Radar technology

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10.1109/lmwc.2007.895732

Cite this

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abstract = "Recently, we introduced a software linearization technique for frequency-modulated continuous-wave (FMCW) radar applications using a nonlinear direct digital synthesizer (DDS) based frequency source. In this paper we present a method that uses this unconventional, cost efficient, basically nonlinear synthesizer concept, but is capable of linearizing the frequency chirp directly in hardware, by means of defined sweep predistortion. Additionally, the concept is extended for the generation of defined nonlinear frequency courses, and verified on measurements with a 2.45 GHz FMCW radar prototype.",

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AB - Recently, we introduced a software linearization technique for frequency-modulated continuous-wave (FMCW) radar applications using a nonlinear direct digital synthesizer (DDS) based frequency source. In this paper we present a method that uses this unconventional, cost efficient, basically nonlinear synthesizer concept, but is capable of linearizing the frequency chirp directly in hardware, by means of defined sweep predistortion. Additionally, the concept is extended for the generation of defined nonlinear frequency courses, and verified on measurements with a 2.45 GHz FMCW radar prototype.

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ER -

High-Speed FMCW Radar Frequency Synthesizer With DDS Based Linearization

Abstract

Fields of science

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Radar Concept Engineering

Cite this

High-Speed FMCW Radar Frequency Synthesizer With DDS Based Linearization

Abstract

Fields of science

Access to Document

Other files and links

Projects

Radar Concept Engineering

Cite this