Decision feedback demodulation algorithm for recursive SOQPSK-TG signal
To solve the problem of one-to-one correspondence relationship not existing between state variable and cumu-lative phase in two-state trellis of shaped-offset quadrature phase-shift keying(SOQPSK-TG), a decision feedback de-modulation algorithm for recursive SOQPSK-TG is researched. According to a t...
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| Main Authors: | , |
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| Format: | Article |
| Language: | zho |
| Published: |
Editorial Department of Journal on Communications
2014-07-01
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| Series: | Tongxin xuebao |
| Subjects: | |
| Online Access: | http://www.joconline.com.cn/zh/article/doi/10.3969/j.issn.1000-436x.2014.07.007/ |
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| Summary: | To solve the problem of one-to-one correspondence relationship not existing between state variable and cumu-lative phase in two-state trellis of shaped-offset quadrature phase-shift keying(SOQPSK-TG), a decision feedback de-modulation algorithm for recursive SOQPSK-TG is researched. According to a two-state trellis , cumulative phase corre-sponding to the state variable is obtained by decision feedback in state transition. Simulation results show that at E<sub>b</sub>/N<sub>0</sub>≥0 dB, the decision feedback demodulation algorithm can achieve a BER performance which is very close to four-state demodulation algorithm performance. |
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| ISSN: | 1000-436X |