Range Accuracy Analysis for FMCW Systems with Source Nonlinearity

Wang, Pu; Millar, David S.; Parsons, Kieran; Ma, Rui; Orlik, Phillip V.

doi:10.1109/icmim.2019.8726679

Cited by 8 publications

(2 citation statements)

References 22 publications

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“…Therefore, a lower CRLB on range indicates a better range estimation, i.e., lower estimation error. CRLB on range defines the theoretical lower bound of range estimation errors in radar systems and it is frequently used to evaluate the performance of radar sensing systems [37]. It is mainly dependent on the waveform bandwidth, waveform type, SNR, and chirp duration, making it a suitable radar performance metric for this study since the waveform bandwidth and center frequency vary chirp to chirp as a result of modulating the communication data on the chirps.…”

Section: Cramér-rao Lower Boundmentioning

confidence: 99%

An Experimental Study of Radar-Centric Transmission for Integrated Sensing and Communications

Temiz

Peters

Ritchie

et al. 2023

IEEE Trans. Microwave Theory Techn.

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This study proposes a dual-function radar and communication (DFRC) system that utilizes radar transmission parameters as modulation indexes to transmit data to the users while performing radar sensing as its primary function. The proposed technique exploits index modulation (IM) using the center frequency of radar chirps, their bandwidths, and polarization states as indexes to modulate the communication data within each radar chirp. By utilizing the combination of these indexes, the proposed DFRC system can reach up to 17 Mb/s throughput, while observing a robust radar performance. Through our experimental study, we also reveal the trade-off between the radar sensing performance and communication data rate, depending on the radar waveform parameters selected in the DFRC system. This study also demonstrates the implementation of the proposed DFRC system and presents its real-time over-the-air experimental measurements. Consequently, the simulation results are verified by real-time over-the-air experiments, where ARESTOR, a highspeed signal processing and experimental radar platform, has been employed.

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Section: Cramér-rao Lower Boundmentioning

confidence: 99%

An Experimental Study of Radar-Centric Transmission for Integrated Sensing and Communications

Temiz

Peters

Ritchie

et al. 2023

IEEE Trans. Microwave Theory Techn.

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show abstract

“…Therefore, to get a high-quality image of these radar systems, some calibration processes must be done before imaging. A variety of calibration methods for different system problems have been proposed in the past, such as computational correction algorithm for nonlinearities [14][15][16], phase error correction [17][18][19], and channel imbalance correction [20,21].…”

Section: Introductionmentioning

confidence: 99%

A Novel Calibration Method for Signal Leakage between Multiple Channels in Array Imaging

et al. 2020

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In this paper, the array imaging process with the presence of signal leakage between channels is derived and analyzed in short-range imaging applications. The echo wave of the system can be divided into two parts: the echo signals we expected, and the echo signal that resulted from the leaked signals. Signals leaked to the adjacent channels can lead to ghosts which can deeply deteriorate the system cross resolution. To solve this problem, a concise calibration method is proposed to remove the impacts of the signal leakages on the imaging quality. Furthermore, the results based on the simulation and the real-world data validate the effectiveness of the proposed method, which indicates that this calibration method can mostly cancel the influence of the signal leakages.

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Misspecified Cramer-Rao Bound For Delay Estimation with a Mismatched Waveform: A Case Study

Roemer

2020

ICASSP 2020 - 2020 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP)

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Range Accuracy Analysis for FMCW Systems with Source Nonlinearity

Cited by 8 publications

References 22 publications

An Experimental Study of Radar-Centric Transmission for Integrated Sensing and Communications

An Experimental Study of Radar-Centric Transmission for Integrated Sensing and Communications

A Novel Calibration Method for Signal Leakage between Multiple Channels in Array Imaging

Misspecified Cramer-Rao Bound For Delay Estimation with a Mismatched Waveform: A Case Study

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