Yarım-sinüs ve dikdörtgen darbeler kullanarak minimum-kaydırmalı anahtarlama sinyallerinin üretilmesi
Öz
Minimum-kaydırmalı anahtarlama sinyalleri, ikili sürekli-fazlı frekans-kaydırmalı
anahtarlama sinyallerinin özel bir formu olarak görülebilir. Yarım-sinüs darbeler
veya dikdörtgen darbeler kullanarak minimum-kaydırmalı anahtarlama sinyalleri
üretilebilir. Her iki yöntemle üretilen işaretlerin temelbant versiyonlarının
örneklenmiş hallerinin birbirlerine eşit oldukları matematiksel olarak gösterilmiştir.
Makaledeki literatüre katkı, bu eşitliğin gösterilmesidir. Ayrıca, ayrık-zamanlı
temelbant minimum-kaydırmalı anahtarlama işaretlerin üretilmeleri ve pratikte
karşılaşılan bir kanaldan iletilmeleri akabinde alıcıda denkleştirme ve demodülasyon
işlemleri yapılarak bit hata oranı başarımları incelenmiştir. Minimum-kaydırmalı
anahtarlama modülasyonu, sabit zarf, bant genişliği verimliliği ve iyi hata oranı
başarımı gibi güzel özelliklere sahiptir. Bu yüzden minimum-kaydırmalı anahtarlama
veya varyantları, telsiz haberleşme sistemlerinin pek çok alanında kullanılırlar,
örneğin, küresel sistem için mobil haberleşmede, radyo frekansı haberleşmelerinde ve
uydu haberleşmelerinde.
Anahtar Kelimeler
Kaynakça
- Proakis, J. G. ve Salehi M, Fundamentals of Communication Systems, 2nd ed. Prentice Hall: USA, (2014).
- Anderson, J. B., Aulin, T. ve Sundberg, C. E., Digital Phase Modulation, Plenum Press, New York, (1986).
- Proakis, J. G. ve Salehi M, Digital Communications, 5th edn., McGraw-Hill, New York, (2008).
- Pasupathy, S., Minimum shift keying: a spectrally efficient modulation, IEEE Communication Magazine, 17, 4, 14-22, (1979).
- Gudovskiy, D. A., Chu, L. ve Lee, S., A novel nondata-aided synchronization algorithm for MSK-type-modulated signals, IEEE Communication Letters, 19, 9, 1552-1555, (2015).
- Bao, J., Zhan, Y., Yın, L. ve Lu, J., Design of Efficient Joint eIRA-Coded MSK Modulation Systems for Space Communications, IEEE Transactions Aerospace Electronic Systems, 48, 2, 1636-1642, (2012).
- Bucci, G., Landi, C. ve Ocera, G., A novel technique for testing pulsed RF MSK data communication devices, IEEE Transactions Instrumentation and Measurement., 49, 5, 1009-1017, (2000).
- Leib, H. ve Pasupathy, S., Erro control properties of minimum shift keying, IEEE Communication Magazine, 31, 1, 52-61, (1993).
- Laurent, P. A., Exact and approximate construction of digital phase modulations by superposition of amplitude modulated pulses, IEEE Transaction on Communication, 34, 2, 150-160, (1986).
- Mengali, U. ve Morelli, M., Decomposition of M-ary CPM Signals into PAM Waveforms, IEEE Transaction on Information Theory, 41, 5, 1265-1275, (1995).
- Martin-Vega, F. J., Blanquez-Casado, F., Lopez-Martinez, F. J., Gomez, G. Ve Entrambasaguas, J. T., Further Improvements in SOVA for High-Throughput Parallel Turbo Decoding, IEEE Communication Letters, 19, 1, 6-9, (2015).
Öz
Minimum-shift keying signals can be seen as a special form of binary continuous-phase
frequency-shift keying. Minimum-shift keying signals may be generated with the use of either half-sine pulses or rectangular pulses. Sampled baseband of both types minimumshift
keying signals mathematically are shown to be are equal. Our contribution in this
paper is representation of this equality. In addition, after discrete-time baseband
minimum-shift keying signals are generated, they are transmitted from a typical channel
encountered in practice. Then, bit error rate performance of the receiver which makes
equalization and demodulation processes was investigated. Minimum-shift keying
modulation has good attributes such as constant envelope, bandwidth efficiency and
good error rate performance. Therefore minimum-shift keying or variants of it are
utilized in many fields of wireless communication systems, for example, the global
system for mobile communication, radio frequency communications and satellite
communications.
Anahtar Kelimeler
Kaynakça
- Proakis, J. G. ve Salehi M, Fundamentals of Communication Systems, 2nd ed. Prentice Hall: USA, (2014).
- Anderson, J. B., Aulin, T. ve Sundberg, C. E., Digital Phase Modulation, Plenum Press, New York, (1986).
- Proakis, J. G. ve Salehi M, Digital Communications, 5th edn., McGraw-Hill, New York, (2008).
- Pasupathy, S., Minimum shift keying: a spectrally efficient modulation, IEEE Communication Magazine, 17, 4, 14-22, (1979).
- Gudovskiy, D. A., Chu, L. ve Lee, S., A novel nondata-aided synchronization algorithm for MSK-type-modulated signals, IEEE Communication Letters, 19, 9, 1552-1555, (2015).
- Bao, J., Zhan, Y., Yın, L. ve Lu, J., Design of Efficient Joint eIRA-Coded MSK Modulation Systems for Space Communications, IEEE Transactions Aerospace Electronic Systems, 48, 2, 1636-1642, (2012).
- Bucci, G., Landi, C. ve Ocera, G., A novel technique for testing pulsed RF MSK data communication devices, IEEE Transactions Instrumentation and Measurement., 49, 5, 1009-1017, (2000).
- Leib, H. ve Pasupathy, S., Erro control properties of minimum shift keying, IEEE Communication Magazine, 31, 1, 52-61, (1993).
- Laurent, P. A., Exact and approximate construction of digital phase modulations by superposition of amplitude modulated pulses, IEEE Transaction on Communication, 34, 2, 150-160, (1986).
- Mengali, U. ve Morelli, M., Decomposition of M-ary CPM Signals into PAM Waveforms, IEEE Transaction on Information Theory, 41, 5, 1265-1275, (1995).
- Martin-Vega, F. J., Blanquez-Casado, F., Lopez-Martinez, F. J., Gomez, G. Ve Entrambasaguas, J. T., Further Improvements in SOVA for High-Throughput Parallel Turbo Decoding, IEEE Communication Letters, 19, 1, 6-9, (2015).
Ayrıntılar
| Bölüm | Makale |
|---|---|
| Yazarlar | |
| Yayımlanma Tarihi | 30 Haziran 2016 |
| Gönderilme Tarihi | 16 Aralık 2016 |
| Yayımlandığı Sayı | Yıl 2016 Cilt: 18 Sayı: 1 |