Implementations of Coherent Software-Defined Dual-Polarized Radars

Hershberger, Jeremy; Pratt, Thomas G.; Kossler, Robert

doi:10.1109/tmtt.2017.2672550

Cited by 10 publications

(3 citation statements)

References 13 publications

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“…This offers increased flexibility and adaptability, allowing for the rapid development and deployment of new radar functionalities. SDR platforms can be easily reprogrammed to support different radar modes, waveforms, and signal processing algorithms, enabling radar systems to be highly configurable [29][30][31].…”

Section: Proof Of Conceptmentioning

confidence: 99%

A Time-Domain Doppler Estimation and Waveform Recovery Approach with Iterative and Ensemble Techniques for Bi-Phase Code in Radar Systems

Youssef,

Moa,

Driessen

2024

Remote Sensing

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This paper presents a novel, cost-effective technique for estimating the Doppler effect in the time domain using a single pulse and subsequently leveraging the precise Doppler value to recover the radar waveform. The proposed system offers several key advantages over existing techniques, including the ability to calculate the target speed without any frequency ambiguity and the ability to detect a wide range of target speeds. These two features are not available in any existing techniques, including the conventional moving target detection (MTD) processor. To ensure improved accuracy and robust estimation, the system employs ensemble and iterative techniques by recursively and efficiently reducing the Doppler residues from the signal. Furthermore, the proposed system demonstrates effective signal recovery of a well-known bi-phase code shape at low signal-to-noise ratios in just a few iterations. The performance evaluation of the new algorithm demonstrates its practicability and its superiority over traditional radar systems. Implementation on software-defined radio (SDR) reveals that the proposed system excels in Doppler estimation and signal recovery at low SNRs, demonstrating promising results.

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Section: Proof Of Conceptmentioning

confidence: 99%

A Time-Domain Doppler Estimation and Waveform Recovery Approach with Iterative and Ensemble Techniques for Bi-Phase Code in Radar Systems

Youssef,

Moa,

Driessen

2024

Remote Sensing

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“…Thirty years ago, polarimetric radars were successfully used in small target detection [8]. With technique development, dual-polarimetric coherent radars are an affordable and effective choice for small target detection and classification [9]. In the dual-polarimetric mode, it is a primary problem whether vertical or horizontal polarization is used at transmission.…”

Section: Introductionmentioning

confidence: 99%

Analytical Coherent Detection in High-Resolution Dual-Polarimetric Sea Clutter with Independent Inverse Gamma Textures

Duan,

Shui,

Wang

et al. 2024

Remote Sensing

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Polarization diversity has been widely used in maritime radars to improve target detection performance. Full utilization of the polarimetric characteristics of sea clutter is the key to designing effective polarimetric detectors. For high-resolution maritime radars, the HH-HV dual-polarization is an affordable and effective mode to monitor small targets, owing to the simple configuration of single-polarimetric transmit and dual-polarimetric reception and lower clutter powers at the HH and HV polarizations. Enlightened by the analytical coherent detector in compound-Gaussian clutter with inverse Gamma texture, this paper investigates dual-polarimetric coherent detection in dual-polarimetric compound-Gaussian clutter with independent inverse Gamma distributed textures. The analytical dual-polarimetric near-optimum coherent detector is derived, which is a fusion of the generalized likelihood ratio test linear threshold detectors (GLRT-LTDs) at the two polarizations. For short, it is referred to as the P-GLRT-LTD. It is proven that the P-GLRT-LTD is of constant false alarm rate with respect to the Doppler steering vector, scale parameters of textures, and speckle covariance matrices. Moreover, the thresholds of the P-GLRT-LTD are given analytically. Experiments using simulated sea clutter data with the estimated scale and shape parameters from the two measured intelligent pixel processing radar (IPIX) datasets and two measured IPIX datasets with test targets are made to compare P-GLRT-LTD with other existing dual-polarimetric coherent detectors. The results show that the P-GLRT-LTD attains the same detection performance as the existing best-performance detector. The P-GLRT-LTD has a lower computational cost than the existing best-performing one.

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“…Presented latency measurements of portable GFDM software implementation [7] 2017 Implemented an Advanced Television Systems Committee (ATSC) 3.0 modulator using SDR [8] 2017 Designed Convergence of Multiple Radio Access Technologies (CONTACT) architecture [9], [10], [11] 2017 Implemented a low cost Unmanned Aerial Vehicles (UAVs) to sustain GPS spoofing attack or WiFi attack and suggested solutions to them [12] 2017 Analyzed SDR-based radar architectures [13] 2018 Designed a SDR based system for radio signal's detection and classification from civilian drones [14] 2019 Presented a new transceiver architecture based HPDSM [15] 2019…”

mentioning

confidence: 99%

Software Defined Radio: USRP N210 with GNU Radio

Reddy*,

Chari

2020

IJITEE

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Driven by the increasing interest from the research community, this paper presents the current role of software defined radio (SDR) in academic and commercial applications which is helpful for the researchers, professors as well as students working in the area of signal processing and wireless communication. The authors mainly focus on universal software radio peripheral (USRP) N210 which is employed as hardware and GNU Radio as software to implement SDR for various applications that help the researchers to test and analyze various proposed techniques for different systems. Furthermore, this paper presents the implementation of basic analog/digital modulation techniques, and recent research works carried out by using SDR. This paper also presents several limitations and current usage of SDR in commercial and academic applications.

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Implementations of Coherent Software-Defined Dual-Polarized Radars

Cited by 10 publications

References 13 publications

A Time-Domain Doppler Estimation and Waveform Recovery Approach with Iterative and Ensemble Techniques for Bi-Phase Code in Radar Systems

A Time-Domain Doppler Estimation and Waveform Recovery Approach with Iterative and Ensemble Techniques for Bi-Phase Code in Radar Systems

Analytical Coherent Detection in High-Resolution Dual-Polarimetric Sea Clutter with Independent Inverse Gamma Textures

Software Defined Radio: USRP N210 with GNU Radio

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