Design and Field Feasibility Evaluation of Distributed-Type 96 GHz FMCW Millimeter-Wave Radar Based on Radio-Over-Fiber and Optical Frequency Multiplier

Futatsumori, Shunichi; Morioka, Kazuyuki; Kohmura, Akiko; Okada, Kunio; Yonemoto, Naruto

doi:10.1109/jlt.2016.2578462

Cited by 48 publications

(12 citation statements)

References 9 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Using fiber cables to distribute radar signals to remote sites is a promising solution to extend radar reach distance and build radar networks. Fiber-based networks have the advantages of low power loss, high immunity to electromagnetic interference, and a large coverage area [3]- [4].…”

Section: Introductionmentioning

confidence: 99%

“…In [7] and [8], a chaotic laser source was used to generate and transmit an 18-GHz bandwidth radar signal over a 24-km SMF for remote water-level measurement and ranging applications. MMW radar signal transmission over a fiber-based network was recently demonstrated in [3]. Moreover, three different radar signals were generated and modulated over three different optical carriers in [4].…”

Section: Introductionmentioning

confidence: 99%

“…Herein, we propose a cost-effective all-optical transport network for radar signal distribution. Instead of dedicating one complete radar system for each site as proposed in previous studies [3]- [6], [9], we consider generating one radar signal in the central office (CO) and then transmitting it over one selectable branch of a point-to-multipoint optical network by exploiting the SOA's wavelength conversion function in the CO as discussed in Section 2. Because of the limitation of hardware availability in our lab, the demonstration and analysis are performed over the downstream link for signal distribution only (see Fig.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

K-Band Centralized Cost-Effective All-Optical Sensing Signal Distribution Network

et al. 2020

View full text Add to dashboard Cite

In this work, we propose and experimentally demonstrate a centralized all-optical network for sensing signal distribution to a large number of remote sites. The reach range of high-resolution sensing systems is often limited due to atmospheric effects. Employing a centralized optical fiber network for signal distribution to different nodes increases the effective reach distance, decreases the power consumption, and reduces the overall cost of the sensing system. The proposed centralized all-optical network is structured such that it has an all-optical wavelength converter hosted at a central office to guide a sensing signal to a specific site/sensor. This system enables using shared equipment in the transmitter which in turn reduces the overall cost of the network. The performance of the proposed system is investigated by transmitting a radar signal over various transmission media, i.e. fiber, free space optic (FSO), and hybrid fiber/FSO. Some empirical formulas for the signal power and dynamic range (DR) are derived. The results show that although optical signal switching introduces a penalty of 2.5-dB in the signal (DR), the signal still preserves its good shape and spectrum quality. In addition, the experimental results show the system performance with respect to target detection and range estimation.

show abstract

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

K-Band Centralized Cost-Effective All-Optical Sensing Signal Distribution Network

et al. 2020

View full text Add to dashboard Cite

show abstract

“…The 77 GHz FOD detection radar [12] developed under the cooperation between Japan and France showed signal attenuation less than 0.18 dB as well as high sensitivity to −20 dBsm objects. In recent years, performances of some other radars working around 70 GHz [13], 76.5 GHz [14], 78 GHz [15,16], 96 GHz [17], even 110 GHz [18] have been successively validated by test data in controlled conditions (e.g., wave form, polarization, and antenna gain).…”

Section: Introductionmentioning

confidence: 99%

A Clutter-Analysis-Based STAP for Moving FOD Detection on Runways

Yang

Huang

Zhang

et al. 2019

Sensors

View full text Add to dashboard Cite

Security risks and economic losses of civil aviation caused by Foreign Object Debris (FOD) have increased rapidly. Synthetic Aperture Radars (SARs) with high resolutions potentially have the capability to detect FODs on the runways, but the target echo is hard to be distinguished from strong clutter. This paper proposes a clutter-analysis-based Space-time Adaptive Processing (STAP) method in order to obtain effective clutter suppression and moving FOD indication, under inhomogeneous clutter background. Specifically, we first divide the radar coverage into equal scattering cells in the rectangular coordinates system rather than the polar ones. We then measure normalized RCSs within the X-band and employ the acquired results to modify the parameters of traditional models. Finally, we describe the clutter expressions as responses of the scattering cells in space and time domain to obtain the theoretical clutter covariance. Experimental results at 10 GHz show that FODs with a reflection higher than −30 dBsm can be effectively detected by a Linear Constraint Minimum Variance (LCMV) filter in azimuth when the noise is −60 dBm. It is also validated to indicate a −40 dBsm target in Doppler. Our approach can obtain effective clutter suppression 60dB deeper than the training-sample-coupled STAP under the same conditions.

show abstract

“…Photonic beamforming networks are also being developed [15], with the advantage of exploiting true time delays that avoid squint phenomena [16]. Moreover, photonics allows signals distribution over optical fibres with negligible propagation losses [17] and immunity to electromagnetic interferences, enabling an easy interconnection or remotisation of different subsystems. Photonic technologies can thus be helpful in radar systems [18] under many aspects.…”

Section: Introductionmentioning

confidence: 99%

Field trial of a photonics‐based dual‐band fully coherent radar system in a maritime scenario

Scotti

Laghezza

Onori

et al. 2017

IET Radar, Sonar & Navigation

View full text Add to dashboard Cite

Design and Field Feasibility Evaluation of Distributed-Type 96 GHz FMCW Millimeter-Wave Radar Based on Radio-Over-Fiber and Optical Frequency Multiplier

Cited by 48 publications

References 9 publications

K-Band Centralized Cost-Effective All-Optical Sensing Signal Distribution Network

K-Band Centralized Cost-Effective All-Optical Sensing Signal Distribution Network

A Clutter-Analysis-Based STAP for Moving FOD Detection on Runways

Field trial of a photonics‐based dual‐band fully coherent radar system in a maritime scenario

Contact Info

Product

Resources

About