DocumentCode
1414875
Title
FMCW Radar Range Performance Improvement With Modified Adaptive Sampling Method
Author
Jiang, Wei ; Pennock, Steve R. ; Shepherd, Peter R.
Author_Institution
Dept. of Electron. & Electr. Eng., Univ. of Bath, Bath, UK
Volume
9
Issue
4
fYear
2012
fDate
7/1/2012 12:00:00 AM
Firstpage
668
Lastpage
671
Abstract
The nonlinear frequency sweep in frequency-modulated continuous-wave radar systems is analyzed. The main lobe broadens with the fast Fourier transform in the presence of distortion, which makes it difficult to resolve closely spaced targets. A novel modified-adaptive-sampling method is presented. To demonstrate the validity of the presented technique, a computer simulation was conducted, and the results show a marked improvement in the shape of the spectrum and the range resolution.
Keywords
CW radar; FM radar; adaptive signal processing; fast Fourier transforms; radar signal processing; signal sampling; FMCW radar range performance improvement; adaptive sampling method; frequency modulated continuous wave radar; nonlinear frequency sweep; range resolution; spectrum shape; Estimation; Frequency estimation; Frequency modulation; Ground penetrating radar; Tuning; Voltage-controlled oscillators; Frequency-modulated continuous wave (FMCW); ground-penetrating radar (GPR); nonlinear; signal processing;
fLanguage
English
Journal_Title
Geoscience and Remote Sensing Letters, IEEE
Publisher
ieee
ISSN
1545-598X
Type
jour
DOI
10.1109/LGRS.2011.2177958
Filename
6122489
Link To Document