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首页> 外文会议>2010 18th Iranian Conference on Electrical Engineering >Doppler spread estimation in microcellular systems using reduced interference time-frequency distribution of the received signals
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Doppler spread estimation in microcellular systems using reduced interference time-frequency distribution of the received signals

机译：使用减少的接收信号的干扰时频分布在微蜂窝系统中进行多普勒扩展估计

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摘要

This paper presents a new time-frequency approach for estimating the Doppler spread of the received signals at the mobile unit antenna in a typical micro-cellular system with non-isotropic scattering. The proposed method uses the time-frequency distribution of the received signals to estimate their instantaneous frequency. The Doppler spread is then estimated from the instantaneous frequency. The proposed estimator is simple to implement and simulations show that unlike existing estimators, is unbiased when the scattering distribution is non-isotropic.
机译：本文提出了一种新的时频方法，用于估计在具有非各向同性散射的典型微蜂窝系统中，移动单元天线处接收信号的多普勒扩展。所提出的方法使用接收信号的时频分布来估计其瞬时频率。然后根据瞬时频率估算多普勒扩展。所提出的估计器易于实现，并且仿真表明，与现有估计器不同，当散射分布为非各向同性时，该估计器是无偏的。

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