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引用本文：

陈铸.LINK11_SLEW信号的非协同解调[J].电讯技术，2014，54（10）： - . [点击复制]
CHEN Zhu.Non-cooperative demodulation of LINK11_SLEW[J].，2014，54（10）： - . [点击复制]

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LINK11_SLEW信号的非协同解调
陈铸
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(中国西南电子技术研究所，成都 610036)

摘要:

根据LINK11_SLEW信号的波形协议和帧结构，先对复杂信道下的LINK11_SLEW信号进行一次模拟解调，再采用相关同步算法、重构前导序列测频算法、平均自适应滤波的信道均衡（AFA）算法和最佳采样点鉴相解扰算法进行二次解调，理论推导和计算仿真表明，复杂信道下采用常规解调方式无法有效解调的LINK11_SLEW信号，采用新算法解调星座图在10符号之内达到收敛，在Eb/N0高于12 dB的情况下，解调误码率小于10-3。

关键词: 战术数据链；LINK11_SLEW 非协同解调相关同步信道均衡

DOI：

基金项目:

Non-cooperative demodulation of LINK11_SLEW

CHEN Zhu

()

Abstract:

According to the waveform protocol and frame structure of LINK11_SLEW, an analog demodulation of LINK11_SLEW in complex channel is proceeded at first, then the correlation synchronization, frequency measurements with restructuring the preamble data, channel equalization with adaptive filtering with averaging algorithm and descrambling with phase discriminator are adopted to the secondary demodulation. Theory and simulation both indicate that the new way can lead the constellation map of the LINK11_SLEW which can not be effectively demodulated with normal method to convergence in 10 symbols, and the demodulation bit error rate is under 10-3 when the Eb/N0 is above 12 dB.

Key words: tactical datalink LINK11-SLEW non-cooperative demodulation correlation synchronization channel equalization