从I/Q数据估计的Ricean k因子的闭式cramimrs -rao下界

2010 IEEE 11th International Workshop on Signal Processing Advances in Wireless Communications (SPAWC) Pub Date : 2010-06-20 DOI:10.1109/SPAWC.2010.5671003

Fatma Jemni, Wassima Bchimi, Inès Bousnina, A. Samet

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引用次数: 1

摘要

从I/Q数据中导出了估算Ricean k因子的封闭形式crlb。实际上，crlb有效地评估了估计器，并指出了采用的最佳方法。crb在两种情况下得到。在第一种情况下，假设只有Ricean k因子是未知的，而在第二种情况下，假设视距(LOS)相位、到达角(AoA)、多普勒频移和镜面多普勒频移也是未知的。我们将得到的解析表达式与数值crlb进行了比较。仿真结果表明，分析结果与数值结果完全吻合。

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Closed-form cramér-rao lower bounds of the Ricean K-factor estimates from I/Q data

Closed-form CRLBs are derived for estimates of the Ricean K-factor from I/Q data. Indeed, the CRLBs evaluate effectively the estimators and indicate the best approach to adopt. The CRLBs are derived in two cases. In the first case, only the Ricean K-factor is assumed unknown, while in the second case the Line-Of-Sight (LOS) phase, Angle of Arrival (AoA), Doppler shift and specular Doppler frequency shift are assumed unknown as well. We compare the obtained analytical expressions with numerical CRLBs. Simulation results show a perfect corroboration between analytical and numerical CRLBs.

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来源期刊

2010 IEEE 11th International Workshop on Signal Processing Advances in Wireless Communications (SPAWC)

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