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Radar Receiver Design and Application
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Radar Receiver Design and Application

A special issue of Sensors (ISSN 1424-8220). This special issue belongs to the section "Electronic Sensors".

Deadline for manuscript submissions: 30 June 2024 | Viewed by 2416

Special Issue Editors

Prof. Dr. Choon-Sik Cho

E-Mail Website
Guest Editor
Department of Electronic & Information Engineering, Korea Aerospace University, Goyang 10540, Republic of Korea
Interests: radar transceivers; RFIC; RF system design
Prof. Dr. Moon-Que Lee

E-Mail Website
Guest Editor
School of Electrical and Computer Engineering, University of Seoul, Seoul 02504, Republic of Korea
Interests: microwave circuit design; RF sensors; microwave energy system
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

With the development of radar technology and microelectronics, radar receivers will develop towards microelectronics, digitalization and modularization. Most receiver functions will be increasingly conducted by digital signal processing technology, greatly improving the performance, reliability and flexibility of the radar receiver. Digital receivers with good channel consistency, small size, light weight and low cost will promote the development of digital beamforming, beamsharpening and advanced space-time 2D filtering technology of modern radar, and will also be widely applied and developed.

This Special Issue aims to cover a wide range of radar-receiver-related issues in the form of original research papers and review papers. Related topics include, but are not limited to, the following:

  • Radar receivers;
  • Radar transceivers;
  • Multiple channel receivers;
  • Digital beamforming technology;
  • Radio frequency signal;
  • Echo signal;
  • Amplifier;
  • Mixer;
  • Detector;
  • Control circuits;
  • Automatic in-machine testing;
  • Automatic fault detection and display.

Prof. Dr. Choon-Sik Cho
Prof. Dr. Moon-Que Lee
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Sensors is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Published Papers (2 papers)

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Research

21 pages, 4782 KiB  
Article
Multipath Detection and Mitigation of Random Noise Signals Propagated through Naturally Lossy Dispersive Media for Radar Applications
by Ana Vazquez Alejos and Muhammad Dawood
Sensors 2023, 23(23), 9447; https://doi.org/10.3390/s23239447 - 27 Nov 2023
Cited by 2 | Viewed by 613
Abstract
This paper describes a methodological analysis of the Brillouin precursor formation to understand the impairments undergone by like-noise and random noise waveforms propagating through naturally dispersive media commonly found in radar applications. By means of a frequency-domain methodology based on considering the frequency [...] Read more.
This paper describes a methodological analysis of the Brillouin precursor formation to understand the impairments undergone by like-noise and random noise waveforms propagating through naturally dispersive media commonly found in radar applications. By means of a frequency-domain methodology based on considering the frequency response of the medium under study, the effect of these dispersive media on the evolution of an input signal can be seen as frequency filtering. The simulations were performed at a center frequency of 1.5 GHz and for a signal bandwidth of 3 GHz. Four random noise signals were considered: Barker codes, PRBS codes, Frank codes, Costas codes and additive white Gaussian noise. The experienced impairments were assessed in terms of cross-correlation function (CCF) degradation. The differences in the behavior of each type of phase and frequency coded signal to face the dispersive propagation have been demonstrated in terms of parameters used for information retrieval: peak amplitude decay, CCF secondary sidelobe level and multipath detectability. Finally, a frequency filtering approach is proposed to mitigate the impairments due to dispersive propagation under multipath conditions. Full article
(This article belongs to the Special Issue Radar Receiver Design and Application)
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14 pages, 3179 KiB  
Article
A GaN-HEMT Active Drain-Pumped Mixer for S-Band FMCW Radar Front-End Applications
by Lorenzo Pagnini, Giovanni Collodi and Alessandro Cidronali
Sensors 2023, 23(9), 4479; https://doi.org/10.3390/s23094479 - 04 May 2023
Cited by 3 | Viewed by 1374
Abstract
This paper reports for the first time a drain-pumped (DP) mixer using Gallium Nitride (GaN) HEMT technology. Specifically, it describes a method aimed to predict the optimum bias conditions for active DP-mixers, leading to high conversion gain (CG) and linearity, along with the [...] Read more.
This paper reports for the first time a drain-pumped (DP) mixer using Gallium Nitride (GaN) HEMT technology. Specifically, it describes a method aimed to predict the optimum bias conditions for active DP-mixers, leading to high conversion gain (CG) and linearity, along with the efficient use of the local oscillator drive level. A mixer prototype was designed and fabricated according to the discussed design principles; it exhibited a CG and an input third-order intercept point (IIP3) of +10dB and +11dBm, respectively, with a local oscillator power level of 20 dBm at about 3.7 GHz. In terms of gain and linearity, both figures exceed the documented limitations for the class of mixers considered in this work. To the authors’ best knowledge, this is the first DP mixer operating in the S-band. The prototype was also tested in a radar-like setup operating in the S-band frequency-modulated continuous-wave (FMCW) mode. Measurements carried out in the radar setup resulted in +39.7dB and +34.7dB of IF signal-to-noise-ratio (SNR) for the DP and the resistive mixers, respectively. For comparison purposes, a resistive mixer was designed and fabricated using the same GaN HEMT technology; a detailed comparison between the two topologies is discussed in the paper, thus further highlighting the capability of the DP-mixer for system applications. Full article
(This article belongs to the Special Issue Radar Receiver Design and Application)
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