A Practical Superheterodyne-Receiver Detector Using Stimulated Emissions

Stagner, Colin; Conrad, A.; Osterwise, Christopher; Beetner, Daryl G.; Grant, Steven

doi:10.1109/tim.2010.2101330

Cited by 40 publications

(24 citation statements)

References 10 publications

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“…A walkie-talkie in standby goes into power-saver mode and cycles on-off. A weak stimulating signal (-40dBm) at the RF frequency is used to keep the LO ON [1].…”

Section: Resultsmentioning

confidence: 99%

“…Regulatory standards limit the level of these emissions; however, some unintended radiations will always be present. Typical radio controlled (RC) devices have either superheterodyne [1][2][3][4] or super-regenerative receivers [5][6]. These devices emit unintended emissions which can be used not only to identify an RC device but also to localize it.…”

Section: Introductionmentioning

confidence: 99%

“…Studies have indicated that unintended passive emissions from a superheterodyne receiver can be detected using a stimulated source [1]. A second-order self-similarity representation was utilized to detect the emissions generated by a super-regenerative receiver [5] of an unknown device.…”

Section: Introductionmentioning

confidence: 99%

“…Detection methods described in [1][2][3][4][5][6] use a single antenna and a single device. The angle of arrival (AoA) information is also not available with single antenna detectors.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Detection and localization of multiple R/C electronic devices using array detectors

Thotla

Ghasr

Zawodniok

et al. 2012

2012 IEEE International Instrumentation and Measurement Technology Conference Proceedings

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Detection and localization of multiple radio controlled (RC) electronic devices has many security applications. This paper first proposes a cost-effective mobile array detector for such RC electronic devices. Subsequently, by using the array detector, a novel scheme is presented for detection, identification, and localization of multiple devices emitting unintended passive emissions. The Hurst parameter method is proposed for detection and identification of devices with super-regenerative receivers while peak detection is used for detection and identification of devices with super heterodyne receivers. Experimental results demonstrate that the proposed scheme outperforms traditional methodologies with single antenna.

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“…A walkie-talkie in standby goes into power-saver mode and cycles on-off. A weak stimulating signal (-40dBm) at the RF frequency is used to keep the LO ON [1].…”

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

“…Detection methods described in [1][2][3][4][5][6] use a single antenna and a single device. The angle of arrival (AoA) information is also not available with single antenna detectors.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Detection and localization of multiple R/C electronic devices using array detectors

Thotla

Ghasr

Zawodniok

et al. 2012

2012 IEEE International Instrumentation and Measurement Technology Conference Proceedings

View full text Add to dashboard Cite

show abstract

“…With good sensitivity, frequency stability, and selectivity, superheterodyne receivers can translate high-frequency signals to lower frequency signals to make high-quality voice and signals [1]. While modern devices use various radioreceiver designs, the superheterodyne receiver remains one of the most successful ones due to its typicality and extensibility.…”

Section: Introductionmentioning

confidence: 99%

Performance Assessment and Prediction for Superheterodyne Receivers Based on Mahalanobis Distance and Time Sequence Analysis

Sun

Wang

et al. 2017

International Journal of Antennas and Propagation

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The superheterodyne receiver is a typical device widely used in electronics and information systems. Thus effective performance assessment and prediction for superheterodyne receiver are necessary for its preventative maintenance. A scheme of performance assessment and prediction based on Mahalanobis distance and time sequence analysis is proposed in this paper. First, a state observer based on radial basis function (RBF) neural network is designed to monitor the superheterodyne receiver and generate the estimated output. The residual error can be calculated by the actual and estimated output. Second, time-domain features of the residual error are then extracted; after that, the Mahalanobis distance measurement is utilized to obtain the health confidence value which represents the performance assessment result of the most recent state. Furthermore, an Elman neural network based time sequence analysis approach is adopted to forecast the future performance of the superheterodyne receiver system. The results of simulation experiments demonstrate the robustness and effectiveness of the proposed performance assessment and prediction method.

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Fault Diagnosis and Health Assessment for Super-Heterodyne Receivers Based on ITD-SVD and LR

Wang

Sun

Lü

et al. 2018

Lecture Notes in Electrical Engineering

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A Practical Superheterodyne-Receiver Detector Using Stimulated Emissions

Cited by 40 publications

References 10 publications

Detection and localization of multiple R/C electronic devices using array detectors

Detection and localization of multiple R/C electronic devices using array detectors

Performance Assessment and Prediction for Superheterodyne Receivers Based on Mahalanobis Distance and Time Sequence Analysis

Fault Diagnosis and Health Assessment for Super-Heterodyne Receivers Based on ITD-SVD and LR

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