NDLI: Multichannel GMTI techniques to enhance integration of temporal signal energy for improved target detection

Content Provider	IET Digital Library
Author	Paulus, Audrey S. Melvin, William L. Williams, Douglas B.
Abstract	Improvements in target detection are typically achieved by increasing the signal-to-interference-plus-noise ratio (SINR) of the received signal. For a small radar platform with power and aperture constraints, increases in SINR must come through temporal integration. Two techniques are presented here for enhancing the integration of temporal signal energy to improve detection of weak, slow-moving targets over conventional methods. Both techniques involve modifications to pre-Doppler space-time adaptive processing (STAP), a reduced-dimension STAP method that is implementable in real-time on a power-constrained platform. The two modifications include (i) development of an alternative pre-Doppler temporal weighting method, based on linear prediction, to increase the SINR of the pre-Doppler temporal output signal and (ii) development of an extended dwell temporal processing (EDTP) algorithm to integrate temporal signal energy collected over a long dwell. The EDTP algorithm is based on frequency domain analysis of the extended dwell time signal; the detection decision exploits the differences in the distribution of signal energy and noise energy over an extended dwell. EDTP algorithm performance is superior to traditional temporal processing methods in many practical scenarios: the EDTP algorithm detection rate is three times the detection rate of non-coherent integration for very low-velocity, low-SNR targets.
Starting Page	395
Ending Page	403
Page Count	9
ISSN	17518784
Volume Number	11
e-ISSN	17518792
Issue Number	Issue 3, Mar (2017)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-rsn/11/3
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-rsn.2016.0082
Journal	IET Radar, Sonar & Navigation
Publisher Date	2016-10-25
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Alternative Pre-Doppler Temporal Weighting Method Aperture Constraint Doppler Radar EDTP Algorithm Electromagnetic Compatibility Extended Dwell Temporal Processing Frequency Domain Analysis Interference Linear Prediction Multichannel GMTI Technique Noise Energy Power Constrained Platform Power Constraint Pre-Doppler Space-time Adaptive Processing Radar Equipment Radar Signal Processing Radar Target Recognition Received Signal Signal Detection Signal Energy Signal-to-interference-plus-noise Ratio SINR Small Radar Platform STAP System And Application Target Detection Temporal Integration Temporal Processing Method Temporal Signal Energy Wireless Channel
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
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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