An Impulse Spectral Intensity Measurement System

Andrews, Robert B.

doi:10.1109/tim.1966.4313554

Cited by 6 publications

(6 citation statements)

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“…R. B. Andrews [17] has developed a spectrum amplitude measurement technique based upon the measurement of spectrum intensity. Spectrum intensity is defined [2] as the ratio of the power contained in a given frequency range to the frequency range as the frequency range approaches zero.…”

Section: Energy Methodsmentioning

confidence: 99%

“…Re[y] = A cos(2iTft), < t < x (2)(3)(4)(5)(6)(7)(8)(9)(10)(11)(12)(13)(14)(15)(16)(17) and the imaginary part is…”

Section: The Real Part Of Y In This Example Ismentioning

confidence: 99%

“…Figures 3-19 and 3-20 show waveforms and spectra obtained from several pulsed TWTA's covering C, X and Ku bands, i.e., 4-8 GHz, 8-12.4 GHz, and 12. [4][5][6][7][8][9][10][11][12][13][14][15][16][17][18] GHz.…”

Section: Rf Pulse Generatormentioning

confidence: 99%

“…Third, eq. (4)(5)(6)(7)(8)(9)(10)(11)(12)(13)(14)(15)(16)(17)(18)(19)(20)(21) requires that the impulse generator source impedance be Pulse Repetition Rate, pps measured. This is not always an easy task as the source impedance of some generators is a time varying quantity.…”

Section: Sum and Difference Correlation Radiometermentioning

confidence: 99%

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Spectrum amplitude :

Andrews¹

1977

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This technical note is a detailed discussion of the electromagnetic quantity, spectrum amplitude, which is used to characterize broadband signals and noise. The definition of spectrum amplitude is presented in detail. Several practical means of generating electrical signals with broadband spectrum amplitudes are included. Various techniques for the measurement of spectrum amplitude are described along with experimental comparisons. The NBS measurement service for the calibration of impulse generator spectrum amplitude is described along with an error analysis.

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Section: Energy Methodsmentioning

confidence: 99%

“…Re[y] = A cos(2iTft), < t < x (2)(3)(4)(5)(6)(7)(8)(9)(10)(11)(12)(13)(14)(15)(16)(17) and the imaginary part is…”

Section: The Real Part Of Y In This Example Ismentioning

confidence: 99%

Section: Rf Pulse Generatormentioning

confidence: 99%

Section: Sum and Difference Correlation Radiometermentioning

confidence: 99%

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Spectrum amplitude :

Andrews¹

1977

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“…Particularly, the calibration of CISPR 16-1-1 pulse generators can be challenging in terms of the required accuracy in the determination of its spectral density, which is ±0.5 dB [1], [6]. In a report from EURAMET, the results from an interlaboratory measurement comparison of a pulse generator in accordance with CISPR 16-1-1 were presented.…”

mentioning

confidence: 99%

Waveform Approach for Assessing Conformity of CISPR 16-1-1 Measuring Receivers

Azpúrua

Pous

Oliva

et al. 2018

IEEE Trans. Instrum. Meas.

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Abstract-An alternative approach for assessing the conformity of electromagnetic interference measuring receivers with respect to the baseline CISPR 16-1-1 requirements is proposed. The method's core is based on the generation of digitally synthesized complex waveforms comprising multisine excitation signals and modulated pulses. The superposition of multiple narrowband reference signals populating the standard frequency bands allows for a single-stage evaluation of the receiver's voltage accuracy and frequency selectivity. Moreover, characterizing the response of the weighting detectors using modulated pulses is more repeatable and less restrictive than the conventional approach. This methodology significantly reduces the amount of time required to complete the verification of the receiver's baseline magnitudes, because time-domain measurements enable a broadband assessment while the typical calibration methodology follows the time-consuming narrow band frequency sweep scheme. Since the reference signals are generated using arbitrary waveform generators, they can be easily reproduced from a standard numerical vector. For different test receivers, the results of such assessment are presented in the 9 kHz-1 GHz frequency range. Finally, a discussion on the measurement uncertainty of this methodology for assessing measuring receivers is given.

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IEEE Standard for the Measurement of Impulse Strength and Impulse Bandwidth

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An Impulse Spectral Intensity Measurement System

Cited by 6 publications

References 1 publication

Spectrum amplitude :

Spectrum amplitude :

Waveform Approach for Assessing Conformity of CISPR 16-1-1 Measuring Receivers

IEEE Standard for the Measurement of Impulse Strength and Impulse Bandwidth

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