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Prospects of FMCW-based frequency diverse array radar
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joe.2019.0458.pdf
Date
2019-11-01
Author
Cetiner, Ramazan
Cetintepe, Cagri
Demir, Şimşek
Hizal, Altunkan
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This work is licensed under a
Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License
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The linear frequency modulated (LFM) frequency modulated continuous wave (FMCW)-based frequency diverse array (FDA) radar concept is investigated in detail. The radar operates as a linear pulsed FMCW/FDA in the transmission (TX) mode while it operates as a pulsed FMCW/phased array (PA) in the receiving mode. The issues such as low signal-to-noise ratio (SNR) of FDA, the time-angle scanning and time-range ambiguities are studied. It is shown that the local instantaneous frequency bandwidth is much smaller than the radio frequency (RF) deviation of LFM. Positive and negative slope TX/RF locations offer frequency diversity. Time domain and frequency domain signal processings are described. A Ku band direct digital synthesis-based FMCW/FDA radar example based on the cumulative detection scheme is given and compared with an equivalent FMCW/PA radar.
Subject Keywords
Direct digital synthesis
,
Signal processing
,
Phased array radar
,
Radar signal processing
,
FM radar;
,
Frequency modulation
,
CW radar
,
FMCW-based frequency diverse array radar
,
Linear frequency
,
Linear pulsed FMCW;
,
Local instantaneous frequency bandwidth
,
Frequency diversity
,
Frequency domain signal processings
URI
https://hdl.handle.net/11511/37634
Journal
JOURNAL OF ENGINEERING-JOE
DOI
https://doi.org/10.1049/joe.2019.0458
Collections
Department of Electrical and Electronics Engineering, Article
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R. Cetiner, C. Cetintepe, Ş. Demir, and A. Hizal, “Prospects of FMCW-based frequency diverse array radar,”
JOURNAL OF ENGINEERING-JOE
, pp. 7299–7303, 2019, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/37634.