NDLI: Performance Study of Quantized Linear Frequency Modulated signals and its application to CW radars

Content Provider	IEEE Xplore Digital Library
Author	Porqueras, F.M. Sole, A.A. Ibars, A.B.
Copyright Year	2006
Description	Author affiliation: Dept. of Signal Theor. & Commun., Univ. Politecnica de Catalunya, Barcelona (Porqueras, F.M.; Sole, A.A.; Ibars, A.B.)
Abstract	Direct digital synthesizers (DDS) are frequently used to generate wideband CW-FM signals in precise high resolution radars. With respect to a perfect linear FM signal, the stepped version produced by DDS can produce undesirable artifacts after range compression. However selecting carefully the configuration parameters of DDS (clock frequency, number of steps, step size, etc.) it is possible to obtain a virtually free of artifacts operation if the compressed signal does not show noticeable degradation with respect to ideal operation. From a theoretical study a simple design guidelines are proposed for the DDS parameters selection. This study has been validated by simulations and experimentally. An experimental CW-FM full polarimetric interferometric ground-based SAR using a DDS as a chirp generator has been developed according to the design guidelines in the TSC labs. The empirical results and system impulsional response are in agreement with this study
Starting Page	100
Ending Page	103
File Size	3850640
Page Count	4
File Format	PDF
ISBN	2960055179
DOI	10.1109/EURAD.2006.280283
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2006-09-13
Publisher Place	UK
Access Restriction	Subscribed
Rights Holder	EUROPEAN MICROWAVE ASSOCIATION
Subject Keyword	chirp Frequency modulation Synthesizers QLFM Radar theory Radar applications Signal resolution Guidelines Degradation Chirp modulation DDS radar ambiguity function Signal processing Signal generators
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
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
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in