Distributed MIMO chaotic radar based on wavelength-division multiplexing technology

Yao, Tingfeng; Zhu, Dan; Ben, De; Pan, Shilong

doi:10.1364/ol.40.001631

Cited by 44 publications

(10 citation statements)

References 15 publications

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“…When the parameters used in obtaining Fig. 4(a) and (b) are used, the maximum number of transmitting antenna is 38 and 80, respectively, which can be increased up to thousands by tuning the parameters in (19). As discussed above, by properly setting the parameters of the two OFCs, the DM, and the LFM signal according to (15), (17) and (19), the proposed system architecture can have its number of transmitting and receiving antenna adjusted in a large range to fulfill MIMO radar applications with different array sizes.…”

Section: Analysis and Discussionmentioning

confidence: 99%

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A Novel Photonic-Based MIMO Radar Architecture With All Channels Sharing a Single Transceiver

2019

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A novel photonic-based multiple-input multiple-output (MIMO) radar architecture is reported based on optical frequency combs and dispersion induced wavelength-dependent time delay. Using the proposed system architecture, we only need one photonic-based radar waveform generator at the transmitter side, whereas only a single receiver, consisting of a photodetector, a low-pass filter and an analog-to-digital convertor, is required at the receiver side. The key significance of the work is that all channels of the MIMO radar system share a single photonic-based transceiver, which can solve the bottleneck problem that has long restricted the application of MIMO radar with a large-scale antenna array, i.e., each channel in a MIMO radar system needs an independent transmitter and an independent receiver. The proposed photonic-based MIMO radar architecture is analyzed, demonstrated and verified by simulation using a 10 × 10 MIMO radar system and a 15 × 15 MIMO radar system. The maximum MIMO radar array size that can be supported by the system architecture is also discussed, and constraints on the number of transmitting antennas and receiving antennas are theoretically given.

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Section: Analysis and Discussionmentioning

confidence: 99%

“…The signal diversity enables superior capabilities compared with a standard phased-array radar. Therefore, MIMO radar not only attracts the attention of researchers in the traditional radar field, but also attracts the interest of researchers in the field of microwave photonics [17]- [19].…”

Section: Introductionmentioning

confidence: 99%

A Novel Photonic-Based MIMO Radar Architecture With All Channels Sharing a Single Transceiver

2019

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“…In addition, frequency response mismatches and other defects among different channels would be minimized. Previously, different types of multiplexing methods were developed for radars (especially for MIMO radars) in the electronic domain, such as time-division multiplexing (TDM), frequency-division multiplexing (FDM) and code-division multiplexing (CDM) [65]- [69].…”

Section: Multi-dimensional Multiplexingmentioning

confidence: 99%

“…When full coherence is achieved, the signal-to-noise ratio (SNR) gain can reach 8.33 dB, which is consistent with the theoretical prediction, indicating the distance detection accuracy may improve by 2.6 times. In addition, fiberdistributed radar network utilizing ultra-wideband [398] and chaotic [399] signals based on WDM structure were previously proposed, which achieved high-precision positioning of targets. MIMO radars introduced in the previous parts [386] can also be regarded as a kind of distributed radars.…”

Section: Distributed Microwave Photonic Radarsmentioning

confidence: 99%

Microwave Photonic Radars

Pan

Zhang

2020

J. Lightwave Technol.

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315

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As the only method for all-weather, all-time and longdistance target detection and recognition, radar has been intensively studied since it was invented, and is considered as an essential sensor for future intelligent society. In the past few decades, great efforts were devoted to improving radar's functionality, precision, and response time, of which the key is to generate, control and process a wideband signal with high speed. Thanks to the broad bandwidth, flat response, low loss transmission, multidimensional multiplexing, ultrafast analog signal processing and electromagnetic interference immunity provided by modern photonics, implementation of the radar in the optical domain can achieve better performance in terms of resolution, coverage, and speed which would be difficult (if not impossible) to implement using traditional, even state-of-the-art electronics. In this tutorial, we overview the distinct features of microwave photonics and some key microwave photonic technologies that are currently known to be attractive for radars. System architectures and their performance that may interest the radar society are emphasized. Emerging technologies in this area and possible future research directions are discussed.

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“…Recently, a multiple-input-multiple-output (MIMO) radar is considered a promising radar-array, including many comparable transceiver-arrays with minimum hardware requirements. Due to its orthogonal property between different channels, a MIMO radar has the flexibility to realize multiple beamforming, DOA estimation, multiple target tracking, and 2D/3D imaging [22][23][24][25]. Besides, a MIMO radar can achieve a precise target positioning and parameter estimation [26,27].…”

Section: Related Workmentioning

confidence: 99%

MIMO-employed coherent photonic-radar (MIMO-Co-PHRAD) for detection and ranging

2021

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Recently, the photonics-radar technology comes out as an attractive candidate in the arena of smart autonomous transportation, surveillance, and navigation-related applications owing to provide wide-spectra to attain improved and precise radar-resolutions. On the other hand, microwave radars, due to limited bandwidth, are incapable of coping with the demands of next-generation radar technology. Moreover, the atmospheric fluctuations become more prominent at higher frequencies and affect the radar’s performance significantly. Subsequently, the authors develop a 2 × 2 multi-input multi-output (MIMO) employed linear frequency-modulated continuous-wave coherent photonic-radar system (MIMO-Co-PHRAD) using OptiSystem™ and MATLAB™ to attain a prolonged detection-range with an enhanced visibility. The developed MIMO-Co-PHRAD is investigated with heterodyne- and homodyne-detection approaches under weak-to-strong regimes of the atmospheric fluctuations like Rain and Fog. A comparison is also drawn for both the demonstrated MIMO-equipped laser-driven coherent photonic-radar systems. The performance of both the developed MIMO-Co-PHRAD systems is evaluated by measuring the intensity of reflected-echoes, signal-to-noise ratio, and range-Doppler patterns. A contrast with the single-input single-output coherent photonic-radar (SISO-Co-PHRAD) is also established to validate the robustness of the demonstrated MIMO-Co-PHRAD.

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Distributed MIMO chaotic radar based on wavelength-division multiplexing technology

Cited by 44 publications

References 15 publications

A Novel Photonic-Based MIMO Radar Architecture With All Channels Sharing a Single Transceiver

A Novel Photonic-Based MIMO Radar Architecture With All Channels Sharing a Single Transceiver

Microwave Photonic Radars

MIMO-employed coherent photonic-radar (MIMO-Co-PHRAD) for detection and ranging

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