NDLI: Linear-FM random radar waveform compressed by dechirping method

Content Provider	IET Digital Library
Author	Liu, Jiafang Zhang, Yunhua Dong, Xiao
Abstract	This research proposes a novel linear frequency modulation (Linear-FM) random radar waveform and introduces a dechirping compression method. The proposed linear-FM random waveforms possess a thumbtack ambiguity function and low cross-correlation properties which are good for fighting against digital radio frequency memory repeat jammer similar to random noise waveforms. The dechirping compression method for the proposed linear-FM random radar waveform works by mixing the random radar echo signal with a local reference linear frequency modulated (LFM) signal to reduce the echo bandwidth and thus allows to use low-speed analogue-to-digital converter similar to the dechirping method for LFM waveform compression. Both numerical simulation and high-resolution circular synthetic aperture radar imaging experiment are conducted to demonstrate the good performance of the proposed waveform and the proposed dechirping compression method.
Starting Page	1107
Ending Page	1115
Page Count	9
ISSN	17518784
Volume Number	13
e-ISSN	17518792
Issue Number	Issue 7, Jul (2019)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-rsn/13/7
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-rsn.2018.5432
Journal	IET Radar, Sonar & Navigation
Publisher Date	2019-03-15
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Dechirping Compression Method Digital Radio Frequency Memory Repeat Jammer Electromagnetic Compatibility FM Radar Frequency Modulation High-resolution Circular Synthetic Aperture Radar Imaging Experiment Interference Jamming LFM Waveform Compression Linear Frequency Modulation Random Radar Waveform Linear-FM Random Radar Waveform Low-speed Analogue-to-digital Converter Modulation And Coding Method Optical, Image And Video Signal Processing Radar Detection Radar Equipment Radar Imaging Radar Resolution Random Noise Random Noise Waveform Random Radar Echo Signal Synthetic Aperture Radar System And Application
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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