Numerical FM Demodulation Enhancements.

Noga, Andrew J.

doi:10.21236/ada311269

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Conical-scan Seeker Signal Processing1

Alternative Rff Configurations1

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2019

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Cited by 2 publications

(2 citation statements)

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“…2. 9,10,[15][16][17][18][19] As the scene image moves across the reticle, the signal from a small object in object space (the target) is chopped or modulated across the regions of different transparency in the reticle. The signal is detected as a sequence of pulses as the signal is chopped.…”

Section: Conical-scan Seeker Signal Processingmentioning

confidence: 99%

Analysis of the jam signal effect against the conical-scan seeker

2019

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There remains a wide proliferation of second-generation frequency-modulated conical-scan seekers in the hands of irregular forces while the understanding of what makes a jam signal effective remains unclear. It is generally known that the jam-to-signal (J/S) ratio, the jam signal frequency, and the duty cycle are the parameters that need consideration when developing an effective jam code, but the effect of using different jammer waveforms is not generally known. Our study investigates the effect of using different jammer waveforms namely: the fixed carrier, low frequency, amplitude modulation (AM), and frequency-modulation jam codes, for jam signal analysis. Of the tested jam signals, it was found that the AM jam code is most effective in countering the conical-scan seeker due to the amplitude variations created by the jam signal.

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Section: Conical-scan Seeker Signal Processingmentioning

confidence: 99%

Analysis of the jam signal effect against the conical-scan seeker

2019

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“…Another alternative involves the use of a Reconstituted FM with Feedback [5,6] or equivalent demodulator in stage 1. In large ß scenarios, this modulation tracking device can cause the following stages of the RFF demodulator to converge more quickly and to a more accurate modulation estimate.…”

Section: Alternative Rff Configurationsmentioning

confidence: 99%

An Introduction to a Feedforward Demodulator

Noga¹

2000

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Numerical FM Demodulation Enhancements.

Cited by 2 publications

References 15 publications

Analysis of the jam signal effect against the conical-scan seeker

Analysis of the jam signal effect against the conical-scan seeker

An Introduction to a Feedforward Demodulator

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