递归SOQPSK-TG信号的两状态判决反馈解调算法

doi:10.3969/j.issn.1000-436x.2014.07.007

Abstract

Abstract:

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_b/N₀≥0 dB, the decision feedback demodulation algorithm can achieve a BER performance which is very close to four-state demodulation algorithm performance.

Key words: shaped offset quadrature phase-shift keying, recursive, decision feedback, demodulation

UNJin-hua S,ANHui-mei H. Decision feedback demodulation algorithm for recursive SOQPSK-TG signal[J]. Journal on Communications, 2014, 35(7): 56-62.

Figures/Tables 5

References 15

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