Tests of Direct-Sampling Coherent Detection with a Laboratory Analog-to-Digital Converter

Waters, William M.; Jarrett, B. R.

doi:10.1109/taes.1985.310575

Cited by 2 publications

(2 citation statements)

References 3 publications

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“…where M is an integer, then digital downconversion schemes can generate I and Q samples directly from the output r[k] of the ADC [74,75].…”

Section: Wideband Signal Basebandingmentioning

confidence: 99%

“…SAS imaging refers to the inverse problem of reconstructing the scattering field s, given the sensing matrix A and a set of measurements d over a range of frequencies and pings. Conventional (delay-and-sum) beamforming uses the steering vectors (74) as spatial weights to combine the sensor outputs coherently, compensating for the geometrically induced spatial Doppler modulation. In SAS imaging, conventional beamforming provides the scattering estimate,…”

Section: A Sas Modelmentioning

confidence: 99%

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An Overview of Advances in Signal Processing Techniques for Classical and Quantum Wideband Synthetic Apertures

Vouras¹,

Mishra²,

Artusio‐Glimpse³

et al. 2022

Preprint

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Rapid developments in synthetic aperture (SA) systems, which generate a larger aperture with greater angular resolution than is inherently possible from the physical dimensions of a single sensor alone, are leading to novel research avenues in several signal processing applications. The SAs may either use a mechanical positioner to move an antenna through space or deploy a distributed network of sensors. With the advent of new hardware technologies, the SAs tend to be denser nowadays. The recent opening of higher frequency bands has led to wide SA bandwidths. In general, new techniques and setups are required to harness the potential of wide SAs in space and bandwidth. Herein, we provide a brief overview of emerging signal processing trends in such spatially and spectrally wideband SA systems. This guide is intended to aid newcomers in navigating the most critical issues in SA analysis and further supports the development of new theories in the field. In particular, we cover the theoretical framework and practical underpinnings of wideband SA radar, channel sounding, sonar, radiometry, and optical applications. Apart from the classical SA applications, we also discuss the quantum electric-field-sensing probes in SAs that are currently undergoing active research but remain at nascent stages of development.

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“…where M is an integer, then digital downconversion schemes can generate I and Q samples directly from the output r[k] of the ADC [74,75].…”

Section: Wideband Signal Basebandingmentioning

confidence: 99%

Section: A Sas Modelmentioning

confidence: 99%

An Overview of Advances in Signal Processing Techniques for Classical and Quantum Wideband Synthetic Apertures

Vouras¹,

Mishra²,

Artusio‐Glimpse³

et al. 2022

Preprint

View full text Add to dashboard Cite

show abstract

An Overview of Advances in Signal Processing Techniques for Classical and Quantum Wideband Synthetic Apertures

Vouras

Mishra

Artusio‐Glimpse

et al. 2023

IEEE J. Sel. Top. Signal Process.

View full text Add to dashboard Cite

Tests of Direct-Sampling Coherent Detection with a Laboratory Analog-to-Digital Converter

Cited by 2 publications

References 3 publications

An Overview of Advances in Signal Processing Techniques for Classical and Quantum Wideband Synthetic Apertures

An Overview of Advances in Signal Processing Techniques for Classical and Quantum Wideband Synthetic Apertures

An Overview of Advances in Signal Processing Techniques for Classical and Quantum Wideband Synthetic Apertures

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