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Paper Abstract and Keywords
Presentation 2018-10-12 11:45
Evaluation of Range Estimation Accuracy by Wideband Coherent Processing for Sparse Frequency Bands
Kazuhiro Watanabe, Manabu Akita, Takayuki Inaba (EUC)
Abstract (in Japanese) (See Japanese page) 
(in English) Ultra-wideband is becoming available in short range radar, and further higher resolution is expected by utilizing ultra-wideband. In this background, we propose a sparced frequency coherent combining method that achieves high target range estimation accuracy by coherently combining signals of multiple frequency bands separated from each other. The authors have proposed a multi-frequency step CPC(complementary phase code) method that can obtain high range resolution while maintaining the detection distance by narrowband reception. In this paper, we will show methods to coherently combine the signals of each band obtained by the multi-frequency step CPC method by dividing the ultra-wideband into a plurality of separated narrowband sub bands. In the proposal of the method, two combining methods are proposed in consideration of the frequency stability of the radar. The estimation accuracy of the proposed method is evaluated by CRLB and statistical evaluation is performed by computer simulation. Furthermore, a simulation is performed in which the carrier frequency error of the radar is changed, and we consider the effect of carrier frequency error on estimated distance accuracy by both methods.
Keyword (in Japanese) (See Japanese page) 
(in English) coherent processing / sparse frequency bands / high range resolution / stepped multiple frequency CPC method / / / /  
Reference Info. IEICE Tech. Rep., vol. 118, no. 239, SANE2018-49, pp. 29-34, Oct. 2018.
Paper # SANE2018-49 
Date of Issue 2018-10-05 (SANE) 
ISSN Print edition: ISSN 0913-5685  Online edition: ISSN 2432-6380

Conference Information
Committee SANE  
Conference Date 2018-10-12 - 2018-10-12 
Place (in Japanese) (See Japanese page) 
Place (in English) The University of Electro-Communications 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Radar signal processing and general issues 
Paper Information
Registration To SANE 
Conference Code 2018-10-SANE 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Evaluation of Range Estimation Accuracy by Wideband Coherent Processing for Sparse Frequency Bands 
Sub Title (in English)  
Keyword(1) coherent processing  
Keyword(2) sparse frequency bands  
Keyword(3) high range resolution  
Keyword(4) stepped multiple frequency CPC method  
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1st Author's Name Kazuhiro Watanabe  
1st Author's Affiliation The University of Electro-Communications (EUC)
2nd Author's Name Manabu Akita  
2nd Author's Affiliation The University of Electro-Communications (EUC)
3rd Author's Name Takayuki Inaba  
3rd Author's Affiliation The University of Electro-Communications (EUC)
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Speaker
Date Time 2018-10-12 11:45:00 
Presentation Time 25 
Registration for SANE 
Paper # IEICE-SANE2018-49 
Volume (vol) IEICE-118 
Number (no) no.239 
Page pp.29-34 
#Pages IEICE-6 
Date of Issue IEICE-SANE-2018-10-05 


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