Results 71 to 80 of about 2,419 (211)
Space scanning FMCW-based two-dimensional frequency diverse array radar
The Journal of Engineering, 2019 The frequency-modulated continuous wave (FMCW)-based frequency diverse array (FDA) radar concept is extended to two dimensions (2D). The radar operates as a linear pulsed FMCW/FDA in the transmission (TX) mode while it operates as a pulsed FMCW/phased ...
Savaş Karadağ +2 more
doaj +1 more source
Modelling real‐world effects in near‐field SAR collections for compressive sensing
IET Radar, Sonar &Navigation, Volume 19, Issue 1, January/December 2025.This paper develops previously published work on using compressive sensing techniques to suppress sidelobes in SAR images to develop a higher‐fidelity measurement model. Using Cranfield University's GBSAR System a series, experimental measurements are conducted, and image estimation techniques are applied to this real data.
George A. J. Price +4 more
wiley +1 more source
IET Radar, Sonar &Navigation, Volume 19, Issue 1, January/December 2025.This study employs time–frequency analysis and deep learning techniques to classify spectrograms derived from targets. We investigate how different time window types and lengths affect the Short‐Time Fourier Transform calculation and the CNN classification accuracy for each scenario.
Fatemeh Arabpour, Mohammad Ali Sebt
wiley +1 more source
A Flexible K‐Band FMCW Radar Prototype for Low‐RCS Nano‐Drone Detection
IET Radar, Sonar &Navigation, Volume 19, Issue 1, January/December 2025.A 5‐cm nano drone with its Doppler signature. ABSTRACT Nano‐drones are insect‐like drones used to provide intelligence through their capability of intrusion and ability to carry small sensors. They pose a defence and security threat and can potentially violate secure establishments and privacy rights.
Safiah Zulkifli, Alessio Balleri
wiley +1 more source
Performance Optimization of SNR and SFDR in RoF Link for the Next Generation Networks
The Journal of Engineering, Volume 2025, Issue 1, January/December 2025.Figure 1 showing the fundamental concept of RoF link designing over a dispersive medium. The complete RoF link is divided into three different sections. These sections are nominated as, central station (CS), optical distribution networks (ODN) and base station (BS). CS to BS conversation is called downlink transmission, while from BS to CS it is called
Balram Tamrakar +10 more
wiley +1 more source
Techniques for homodyne dechirp-on-receive linearly frequency modulated radar
, 2011 This thesis presents work done to extend and improve the operation of homodyne dechirp-on-receive linearly frequency modulated radars. First, an investigation of the effect of common phase errors on the point response function of the radar is ...
Middleton, Robert
core
Measuring River Surface Velocity Using UAS‐Borne Doppler Radar
Water Resources Research, Volume 60, Issue 11, November 2024.Abstract Using Unoccupied Aerial Systems (UAS) equipped with optical RGB cameras and Doppler radar, surface velocity can be efficiently measured at high spatial resolution. UAS‐borne Doppler radar is particularly attractive because it is suitable for real‐time velocity determination, because the measurement is contactless, and because it has fewer ...
Zhen Zhou +19 more
wiley +1 more source
, 1978 An FM/CW radar system is presented with improved noise discrimination in which the received signal is multiplied by a sample of the transmitted signal, and the product signal is employed to deflect a laser beam as a function of frequency. The position of
Brey, H., Geise, P. E., Jr.
core +1 more source
The design of an FM-CW proximity radar [PDF]
, 2004 Thesis (MScEng) -- Stellenbosch University, 2004.ENGLISH ABSTRACT: The development of a small, cost effective short range FM-CW radar as well as the design and optimization of a double helix antenna is discussed. The FM-CW radar operates at Sband (2450
Kellerman, Robert A.
core
FM-CW yükseklik ölçer radar tasarımı
, 2005 Frequency modulated continuous wave (FM-CW) radar altimeters are used in civil and military applications. Proximity fuses, automatic cruise control systems of cars, radar altimeter of planes are examples to these applications.
Yetkil, Yaşar Barış
core