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Effects of frequenc...
Effects of frequency and phase error in electronic warfare TDOA direction-finding systems
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- Falk, Johan (författare)
- Department of Electronic Warfare Systems, Swedish Defence Research Agency Linköping, Sweden
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- Händel, Peter, 1962- (författare)
- KTH,Signaler, sensorer och system
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- Jansson, Magnus (författare)
- KTH,Signaler, sensorer och system
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(creator_code:org_t)
- IEEE conference proceedings, 2003
- 2003
- Engelska.
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Ingår i: Military Communications Conference. - : IEEE conference proceedings. - 0780381408 ; , s. 118-123
- Relaterad länk:
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https://urn.kb.se/re...
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visa fler...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- Electronic warfare systems for use against military communication sources include direction-finding. The considered direction-finding electronic-warfare system usestwo intercept receivers which is eavesdropping on thetransmitted signal with no knowledge of the waveformused, or its origin. Down-conversion to baseband is required in order to digitize the received signal. This canbe done using a superheterodyne receiver where an oscillator is used to mix the signal-of-interest to baseband.Errors in frequency and phase between the oscillatorsdegrade the performance. Because of this error, the per-formance derived in previous work by the authors willnot apply since the used model no longer is applicable.The extended model presented here considers the oscil-lator errors. The performance using the extended modelis determined numerically and the result is compared tothe Cramer-Rao lower bound for the ideal system usinga typical signal waveform.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Elektroteknik och elektronik -- Signalbehandling (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Electrical Engineering, Electronic Engineering, Information Engineering -- Signal Processing (hsv//eng)
Nyckelord
- Electronic warfare systems
- direction-finding
- Down-conversion to baseband
- superheterodyne receiver
- Cramer-Rao lower bound
Publikations- och innehållstyp
- ref (ämneskategori)
- kon (ämneskategori)
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