Compact multiple cut‐corners square spiral antenna for stepped‐frequency continuous wave radar system
Sign Up to like & getrecommendations! Published in 2019 at "Microwave and Optical Technology Letters"
DOI: 10.1002/mop.32142
Abstract: Stepped frequency continuous wave (SFCW) radar is a promising noncontact method to detection of human vital signs. Antenna as a key component of radar directly related to the performance of the radar. In this letter,… read more here.
Keywords: antenna; stepped frequency; cut; cut corners ... See more keywords
Algorithm to process the stepped frequency radar signal for a thin road surface application
Sign Up to like & getrecommendations! Published in 2018 at "Construction and Building Materials"
DOI: 10.1016/j.conbuildmat.2017.10.075
Abstract: Abstract This article describes an algorithm for calculating the relative permittivity from a stepped frequency continuous wave radar (SFCW) signal. The intended application for the developed radar is a quality estimation of the road surface… read more here.
Keywords: stepped frequency; frequency; radar signal; road ... See more keywords
Synchronized Stepped Frequency Modulation for Multiplexed Ion Mobility Measurements.
Sign Up to like & getrecommendations! Published in 2022 at "Journal of the American Society for Mass Spectrometry"
DOI: 10.1021/jasms.1c00365
Abstract: Implementation of frequency-encoded multiplexing for ion mobility spectrometry (e.g., Fourier transform ion mobility spectrometry (FT-IMS)) has facilitated the direct coupling of drift tube ion mobility instrumentation with ion-trap mass analyzers despite their duty cycle mismatch.… read more here.
Keywords: stepped frequency; modulation; frequency; ion mobility ... See more keywords
Design of Ultrawideband Stepped-Frequency Radar for Imaging of Obscured Targets
Sign Up to like & getrecommendations! Published in 2017 at "IEEE Sensors Journal"
DOI: 10.1109/jsen.2017.2707340
Abstract: A stepped-frequency radar that allows for adaptability in the radiated spectrum while maintaining high-resolution radar imagery has been developed. The spectrally agile frequency-incrementing reconfigurable (SAFIRE) radar system is a vehicle-mounted, ground-penetrating radar that is capable… read more here.
Keywords: frequency radar; stepped frequency; system; obscured targets ... See more keywords
Deconvolving Range Profile for Sonar Imaging Using Stepped-Frequency LFM Pulses
Sign Up to like & getrecommendations! Published in 2021 at "IEEE Geoscience and Remote Sensing Letters"
DOI: 10.1109/lgrs.2020.2991418
Abstract: An imaging sonar using stepped-frequency linear frequency modulation (LFM) pulses can improve the range resolution. Nevertheless, the range resolution cannot be increased freely since the ping number is limited by the medium instability. Furthermore, the… read more here.
Keywords: lfm pulses; frequency; range; using stepped ... See more keywords
Stepped Frequency Waveform Optimization for Formation Targets Detection
Sign Up to like & getrecommendations! Published in 2022 at "IEEE Geoscience and Remote Sensing Letters"
DOI: 10.1109/lgrs.2022.3174926
Abstract: Formation targets have the characteristics of close distance, radar cross section (RCS) difference, and strong motion correlation. Radar should have enough resolution and anti-jamming ability to detect formation targets in the complex electromagnetic environment. The… read more here.
Keywords: formation; frequency waveform; stepped frequency; formation targets ... See more keywords
Range Sidelobe Suppression for Randomized Stepped-Frequency Chirp Radar
Sign Up to like & getrecommendations! Published in 2021 at "IEEE Transactions on Aerospace and Electronic Systems"
DOI: 10.1109/taes.2021.3082670
Abstract: Randomized stepped-frequency (RSF) radar, which transmits pulses with random carrier frequencies in a coherent processing interval, has an excellent electronic counter-countermeasures performance and the ability to generate the high-range-resolution profiles (HRRPs) of target with a… read more here.
Keywords: frequency; stepped frequency; sidelobe suppression; randomized stepped ... See more keywords
Comparison Study of Noncontact Vital Signs Detection Using a Doppler Stepped-Frequency Continuous-Wave Radar and Camera-Based Imaging Photoplethysmography
Sign Up to like & getrecommendations! Published in 2017 at "IEEE Transactions on Microwave Theory and Techniques"
DOI: 10.1109/tmtt.2017.2658567
Abstract: In this paper, we compare the performance of radar and optical (camera based) techniques in detecting vital signs such as respiratory rate (RR), heart rate (HR), and blood oxygen saturation (SpO2). Specifically, we investigate the… read more here.
Keywords: stepped frequency; vital signs; camera based; radar ... See more keywords
Design and Processing Method for Doppler-Tolerant Stepped-Frequency Waveform Using Staggered PRF.
Sign Up to like & getrecommendations! Published in 2021 at "Sensors"
DOI: 10.3390/s21196673
Abstract: Stepped-frequency waveform may be used to synthesize a wideband signal with several narrow-band pulses and achieve a high-resolution range profile without increasing the instantaneous bandwidth. Nevertheless, the conventional stepped-frequency waveform is Doppler sensitive, which greatly… read more here.
Keywords: stepped frequency; frequency; doppler; frequency waveform ... See more keywords