NDLI: Optical-delay-based wide-range FMCW radar altimeter

Content Provider	IET Digital Library
Author	Choi, J. H. Jang, J. H. Roh, J. E.
Abstract	The design of a frequency-modulated continuous wave (FMCW) radar altimeter with wide altitude range and low measurement errors is presented. Wide altitude range is achieved by employing the optical delay in the transmitting path to reduce the dynamic range of the measuring altitude. Transmitting power and receiver gain are also controlled to enable the dynamic range of the received power to be reduced. In addition, low measurement errors are obtained by improving the sweep linearity using the direct digital synthesiser (DDS) and minimising the phase noise employing the reference clock (Ref_CLK) as the offset frequency of the phase-locked loop (PLL).
Starting Page	1975
Ending Page	1977
Page Count	3
ISSN	00135194
Volume Number	50
e-ISSN	1350911X
Issue Number	Issue 25, Dec (2014)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/el/50/25
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/el.2014.3184
Journal	Electronics Letters
Publisher Date	2014-11-28
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	DDS Demodulator Direct Digital Synthesis Direct Digital Synthesiser Discriminators And Mixers FM Radar Frequency-modulated Continuous Wave Radar Altimeter Modulator Optical Delay-based Wide-range FMCW Radar Altimeter Phase Locked Loop Phase Noise PLL Radar Altimetry Radar Equipment Reference Clock Signal Generator Sweep Linearity System And Application
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

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

LFM-CW signal generator based on hybrid DDS-PLL structure

Integer boundary spur considerations for fractional-N PLL based FMCW radar

Simple-structure and cost-effective FMCW radar test system using a PLL-Gunn oscillator and fundamental mixer in the E-band

A Two Sweeping VCO Source for Heterodyne FMCW Radar

Design of an FMCW Radar Altimeter for Wide-Range and Low Measurement Error

DC-offset elimination method for grid synchronisation

Wide-range harmonic lock detector with real-time delay measurement of delay-locked loop

Erratum: Delay, linewidth and bandwidth limitations in optical phase-locked loop design

Analysis of frequency detection capability of Alexander phase detector

Optical-delay-based wide-range FMCW radar altimeter

Similar Documents

LFM-CW signal generator based on hybrid DDS-PLL structure

Integer boundary spur considerations for fractional-N PLL based FMCW radar

Simple-structure and cost-effective FMCW radar test system using a PLL-Gunn oscillator and fundamental mixer in the E-band

A Two Sweeping VCO Source for Heterodyne FMCW Radar

Design of an FMCW Radar Altimeter for Wide-Range and Low Measurement Error

DC-offset elimination method for grid synchronisation

Wide-range harmonic lock detector with real-time delay measurement of delay-locked loop

Erratum: Delay, linewidth and bandwidth limitations in optical phase-locked loop design

Analysis of frequency detection capability of Alexander phase detector

Optical-delay-based wide-range FMCW radar altimeter