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分析了CDMA时分模式下的统计贝叶斯信道估计。通过理论分析得到了简化的贝叶斯信道估计权值,其等同将后向概率的最大化。提出了一种综合贝叶斯估计和门限的改进方法。计算机仿真结果表明不仅提高了信道估计精度,而且保持了较低的计算复杂度。
The statistical Bayesian channel estimation in CDMA time-division mode is analyzed. By theoretical analysis, the simplified Bayesian channel estimation weight is obtained, which is equivalent to maximize the backward probability. An improved method of synthesizing Bayesian estimation and threshold is proposed. Computer simulation results show that not only improve the channel estimation accuracy, but also to maintain a lower computational complexity.