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Channel equalization via channel identification: algorithms and simulation results for rapidly fading HF channels

机译:通过信道识别进行信道均衡:快速衰落的HF信道的算法和仿真结果

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摘要

The problem of channel equalization via channel identification (CEQCID) that has previously been considered by a handful of researchers is explored further. An efficient algorithm for mapping the channel parameters to the equalizers coefficients is proposed. The proposed scheme is compared with a lattice least squares (LS) based receivers. For the particular application of the high frequency (HF) radio channels, we find that the CEQCID has lower computational complexity. In terms of the tracking performance, also, the CEQCID has been found to be superior to the LS based receivers. We emphasize on the implementation of a fractionally tap-spaced decision feedback equalizer (DFE) and compare that with the T-spaced DFE. We show that the former is a better choice for the multipath HF channels.
机译:进一步研究了少数研究人员以前考虑过的通过信道标识(CEQCID)进行信道均衡的问题。提出了一种将信道参数映射到均衡器系数的有效算法。将提出的方案与基于格最小二乘(LS)的接收器进行比较。对于高频(HF)无线电信道的特定应用,我们发现CEQCID具有较低的计算复杂度。另外,在跟踪性能方面,已经发现CEQCID优于基于LS的接收机。我们强调分数抽头间隔决策反馈均衡器(DFE)的实现,并将其与T间隔DFE进行比较。我们表明,对于多径HF信道,前者是更好的选择。

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