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Pregled bibliografske jedinice broj: 152898

Walsh function synthesis of the combined multiple shift-keyed modulated signals


Švedek, Tomislav; Rupčić, Slavko
Walsh function synthesis of the combined multiple shift-keyed modulated signals // Proceedings of the ISIE'99
Bled, Slovenija, 1999. str. 1401-1405 (predavanje, međunarodna recenzija, cjeloviti rad (in extenso), znanstveni)


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Naslov
Walsh function synthesis of the combined multiple shift-keyed modulated signals

Autori
Švedek, Tomislav ; Rupčić, Slavko

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
Proceedings of the ISIE'99 / - , 1999, 1401-1405

Skup
ISIE'99-IEEE International Symposium on Industial Electronics

Mjesto i datum
Bled, Slovenija, 12-16.07.1999

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
Walsh function; shift-keying modulator; PSK; ASK; FSK

Sažetak
A detection probability of the shift-keyed signals can be increased by the introduction of redundant phase, frequency and/or amplitude information elements. For the evaluation of the resultatnt influence on the receiving side detection probability and spectral occupancy penalty, it is necessary to build a modulator by which can be easily synthesized all combinations of the shift-keyed signals. The paper introduces the Walsh function based generator for synthesis of the combined multiple shift-keyed signals: MP-PSK/MF-FSK, MP-PSK/MA-ASK, MF-FSK/MA-ASK, and MP-PSK/MF-FSK/MA-ASK. The proposed generation technique is chosen because the generator can be realized digitally in the small ROM-less PLD with a small number of components outside of the chip. The basis of the generator is the synthesis of the sine-wave carrier by Walsh functions. This synthesized carrier is modulated by a digital signal, producing single or combined shift-keyed modulated signals. Frequency modulation is achieved by the change of input clock frequency, discrete phase shifts are synthesized within the generator by special shift-functions set, and discrete amplitude elements are get from the attached gain control amplifier. The generator is realized digitally in low complexity PLD, with D/A conversion weighted resistor network and gain control amplifier outside of the chip. The paper presents oscillograms and power spectrum for the two combined multiple shift-keyed modulated signals.

Izvorni jezik
Engleski

Znanstvena područja
Elektrotehnika



POVEZANOST RADA


Ustanove
Fakultet elektrotehnike, računarstva i informacijskih tehnologija Osijek

Profili:

Avatar Url Slavko Rupčić (autor)

Avatar Url Tomislav Švedek (autor)

Citiraj ovu publikaciju

Švedek, Tomislav; Rupčić, Slavko
Walsh function synthesis of the combined multiple shift-keyed modulated signals // Proceedings of the ISIE'99
Bled, Slovenija, 1999. str. 1401-1405 (predavanje, međunarodna recenzija, cjeloviti rad (in extenso), znanstveni)
Švedek, T. & Rupčić, S. (1999) Walsh function synthesis of the combined multiple shift-keyed modulated signals. U: Proceedings of the ISIE'99.
@article{article, year = {1999}, pages = {1401-1405}, keywords = {Walsh function, shift-keying modulator, PSK, ASK, FSK}, title = {Walsh function synthesis of the combined multiple shift-keyed modulated signals}, keyword = {Walsh function, shift-keying modulator, PSK, ASK, FSK}, publisherplace = {Bled, Slovenija} }




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