RF microelectronics for W-CDMA mobile communication systems

Springer, Andreas; Weigel, Robert

doi:10.1049/ecej:20020301

Cited by 5 publications

(2 citation statements)

References 19 publications

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“…The intensities of the direct reactions which were elicited in these animals were just as severe as those in recently sensitized hamsters. This evidence of long persistence of direct reactivity following primary sensitization with a skin homograft parallels Springer's ( 1964) finding that the hypersensitivity elicited in hamsters by skin homografts is still in effect I20 days later, as measured in terms of the fate of "second-set" grafts.…”

Section: Specificity Of the Direct Reactionsupporting

confidence: 77%

Delayed Cutaneous Hypersensitivity Reactions and Transplantation Immunity in Syrian Hamsters*

Ramseier

Billingham

1964

Annals of the New York Academy of Sciences

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Section: Specificity Of the Direct Reactionsupporting

confidence: 77%

Delayed Cutaneous Hypersensitivity Reactions and Transplantation Immunity in Syrian Hamsters*

Ramseier

Billingham

1964

Annals of the New York Academy of Sciences

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“…For example, each cell phone has its specific phone number that acts as its unique identifier code which is deployed in the sifting process. This amazing feat of very weak EM signal detection buried in wideband EM noise (created by all the unwanted EM signals) is achieved using highly sensitive Radio Frequency (RF) electronics with powerful on-chip encoding and decoding via analog and Digital Signal Processing (DSP) within energy efficient and compact high speed hardware [12,13].…”

Section: Introductionmentioning

confidence: 99%

Coded access optical sensor (CAOS) imager

Riza

Amin

Torre

2015

J. Eur. Opt. Soc.-Rapid Publ.

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High spatial resolution, low inter-pixel crosstalk, high signal-to-noise ratio (SNR), adequate application dependent speed, economical and energy efficient design are common goals sought after for optical image sensors. In optical microscopy, overcoming the diffraction limit in spatial resolution has been achieved using materials chemistry, optimal wavelengths, precision optics and nanomotion-mechanics for pixel-by-pixel scanning. Imagers based on pixelated imaging devices such as CCD/CMOS sensors avoid pixel-by-pixel scanning as all sensor pixels operate in parallel, but these imagers are fundamentally limited by inter-pixel crosstalk, in particular with interspersed bright and dim light zones. In this paper, we propose an agile pixel imager sensor design platform called Coded Access Optical Sensor (CAOS) that can greatly alleviate the mentioned fundamental limitations, empowering smart optical imaging for particular environments. Specifically, this novel CAOS imager engages an application dependent electronically programmable agile pixel platform using hybrid space-time-frequency coded multiple-access of the sampled optical irradiance map. We demonstrate the foundational working principles of the first experimental electronically programmable CAOS imager using hybrid time-frequency multiple access sampling of a known high contrast laser beam irradiance test map, with the CAOS instrument based on a Texas Instruments (TI) Digital Micromirror Device (DMD). This CAOS instrument provides imaging data that exhibits 77 dB electrical SNR and the measured laser beam image irradiance specifications closely match (i.e., within 0.75% error) the laser manufacturer provided beam image irradiance radius numbers. The proposed CAOS imager can be deployed in many scientific and non-scientific applications where pixel agility via electronic programmability can pull out desired features in an irradiance map subject to the CAOS imaging operation.

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Introduction to Cellular Systems

Kiang

Yang

2004

Novel Technologies for Microwave and Millimeter — Wave Applications

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RF microelectronics for W-CDMA mobile communication systems

Cited by 5 publications

References 19 publications

Delayed Cutaneous Hypersensitivity Reactions and Transplantation Immunity in Syrian Hamsters*

Delayed Cutaneous Hypersensitivity Reactions and Transplantation Immunity in Syrian Hamsters*

Coded access optical sensor (CAOS) imager

Introduction to Cellular Systems

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