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发明公开
CN1312625A 一种动态调整平均长度以进行信道估计的方法和装置 失效 - 权利终止

一种动态调整平均长度以进行信道估计的方法和装置
摘要：
本发明方法包括以下步骤:(1)估计移动信道最大多普勒频移;(2)根据最大多普勒频移计算最佳平均长度;(3)根据计算出的最佳平均长度进行动态调整。本发明装置包括瞬时信道参数估计器1、最大多普勒频移估计器2、最佳平均长度计算器3和M个数据累加平均器4,其中瞬时信道参数估计器1同时与最大多普勒频移估计器2和M个数据累加平均器4连接。本发明计算简单易行,可用于任何具有连续导频的CDMA移动通信系统,包括3GPP WCDMA和3GPP2 CDMA2000系统。克服了固定平均长度进行信道估计所带来的估计误差,大大提高RAKE接收机的接收性能。
摘要（英）：

The invention method includes the following steps: (1). estimating maximum Doppler frequency-shift of moving channel; (2) calculating optimum average length according to the maximum Doppler frequency-shift; (3). making dynamic regulation according to the calculated optimum average length. Said invented equipment includes instantaneous channel parameter estimator, maximum Doppler frequency-shift estimator, optimum average length calculating device and M data accumulation average calculating devices, in which the instantaneous channel parameter estimator is connected with maxium Doppler frequency-shift estimator and M data accumution average calculating devices simultaneously. Said invention is simple and easy to make calculation, can be used in any CDMA communication system with continuouspilot, including 3GPP WCDMA and 3GPP2 CDMA 2000 system, and can greatly raise receiving performance of RAKE receiving machine.

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