快速衰落信道上TDS-OFDM系统的卡尔曼均衡

2008 IEEE International Symposium on Knowledge Acquisition and Modeling Workshop Pub Date : 2008-12-01 DOI:10.1109/KAMW.2008.4810460

Guoqiang Gong, Wan-Cheng Ge

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引用次数: 1

摘要

在分析快速衰落信道特性的基础上，提出了一种基于时域同步正交频分复用(TDS-OFDM)系统模型的时域直接估计信道值的卡尔曼均衡方法。该算法采用一维卡尔曼方法，具有较低的复杂度。此外，针对时变信道的跟踪，提出了时域最小均方误差均衡器和迭代决策反馈方法。在给定信噪比的情况下，仿真结果表明，该算法在快速衰落信道中具有较好的性能。

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Kalman Equalization for TDS-OFDM Systems over Fast Fading Channels

By analyzing the characteristic of fast fading channels, a Kalman equalization method of directly estimating channel values in time domain is proposed based on time domain synchronization orthogonal frequency division multiplexing (TDS-OFDM) system models. The proposed algorithm is one-dimensional Kalman method and has low complexity. In addition, for tracking the time-varying channel, a minimum mean-squared error (MMSE) equalizer in time domain and a iterative decision-feedback method are also proposed. For given signal-to-noise ratios (SNRs), the simulation results show that the proposed algorithm has better performance than the other algorithms in fast fading channels.

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2008 IEEE International Symposium on Knowledge Acquisition and Modeling Workshop

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