Reverse Modulation Carrier Recovery for Offset QPSK Burst Signals
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概要
- 論文の詳細を見る
This paper describes reverse modulation carrier recovery with a tank-limiter for Offset QPSK (OQPSK) burst signals. Acquisition performance is discussed taking into account hardware implementation errors in the carrier recovery circuit. The results indicate hardware implementation errors cause a significant recovered carrier phase error during BTR (Bit Timing Recovery) of OQPSK burst signals. A phase error reduction technique by modifying the BTR code for OQPSK burst signals is proposed to improve the acquisition performance. Computer simulation and hardware experiments confirmed its improvement. The performance of a prototype OQPSK burst demodulator using the proposed carrier recovery scheme is also presented.
- 社団法人電子情報通信学会の論文
- 1995-04-25
著者
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Kato Shuzo
NTT Wireless Systems Laboratories
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Umehira Masahiro
NTT Wireless Systems Laboratories
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Umehira Masahiro
Ntt Wireless Communication Systems Laboratories
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