Microlocal high-range-resolution ISAR for low signal-to-noise environments

2003 ◽  
Author(s):  
Margaret Cheney ◽  
Brett H. Borden
Keyword(s):  
Signal To Noise ◽  
Range Resolution ◽  
High Range

scholarly journals Precision Imaging of Frequency Stepped SAR with Frequency Domain Extracted HRRP and Fast Factorized Back Projection Algorithm

2017 ◽  
Vol 2017 ◽  
pp. 1-13
Author(s):  
Can-bin Yin ◽  
Da Ran
Keyword(s):  
Fourier Transform ◽  
Frequency Domain ◽  
Single Point ◽  
Projection Algorithm ◽  
Great Promise ◽  
Back Projection ◽  
Imaging Processing ◽  
Block Partition ◽  
Range Resolution ◽  
High Range

Novel frequency domain extracted method (FDEM) to obtain high range resolution profile (HRRP) for frequency stepped synthetic aperture radar (SAR) is proposed in this paper, and the mathematical principle and formulas of this new HRRP obtaining idea combined with classical fast Fourier transform (FFT), chirp z transform (CZT), and single point Fourier transform (SPFT) are deduced, analyzed, and compared in detail. Based on the HRRP data, precision imaging processing is completed using a data block partition based fast factorized back projection algorithm. Imaging validations are executed and all results proved that the FDEM has a great capability of antijamming. It is more effective than conventional time domain IFFT method (TDM) and shows a great promise in frequency stepped radar imaging and applications.

An evolutionary multiclass algorithm for automatic classification of high range resolution radar targets

2009 ◽  
Vol 16 (1) ◽  
pp. 51-60 ◽  
Author(s):  
Leo Carro-Calvo ◽  
Sancho Salcedo-Sanz ◽  
Roberto Gil-Pita ◽  
Antonio Portilla-Figueras ◽  
Manuel Rosa-Zurera
Keyword(s):  
Automatic Classification ◽  
Range Resolution ◽  
Radar Targets ◽  
High Range Resolution Radar ◽  
High Range

scholarly journals On range super - resolution in a radar with many carriers. Simulation and experiment

2019 ◽  
pp. 24-29
Author(s):  
I. L. Nagornykh ◽  
N. D. Bazhenov
Keyword(s):  
Fourier Transform ◽  
Traditional Method ◽  
Super Resolution ◽  
Music Algorithm ◽  
Signal To Noise ◽  
Range Resolution ◽  
Probing Signal ◽  
Simulation And Experiment ◽  
The Fourier Transform ◽  
Research Show

The paper focuses on radar operation and the results of its simulation. The probing signal of the radar is a set of 16 orthogonal carriers. To determine the range in such radar, the MUSIC algorithm was applied, which relates to super - resolution methods. Findings of research show that the MUSIC algorithm makes it possible to increase the radar range resolution in the signal - to-noise 0-20 dB ratio by 4-8 times as compared with the traditional method based on the Fourier transform. The developed models were experimentally verified

High range resolution laser scanner with full waveform recording

2010 ◽  
Author(s):  
Dietmar Letalick ◽  
Håkan Larsson ◽  
Gustav Tolt ◽  
Lars Allard ◽  
Erika Wollner ◽  
...  
Keyword(s):  
Laser Scanner ◽  
Range Resolution ◽  
Full Waveform ◽  
High Range
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