发明名称 |
Apparatus and method for performing channel estimations using non-linear filter |
摘要 |
A channel estimation apparatus for WCDMA mobile communication terminal is disclosed. The channel estimation apparatus includes a moving average filter for calculating the average value of pilot signals; an interpolator for computing a tentative estimation value of channel variation by using linear interpolation algorithms based on the average value of pilot signal; a channel compensator for compensating a channel variable of the data signal delayed in a predetermined time based on the tentative estimation value of channel variation; a decision block unit for tentatively determining data signal based on the compensated data signals; a raw channel estimator for computing a raw channel estimation value based on the output signal of the decision block unit and the data signal delayed; and a non-linear filter for computing a final channel estimation value of channel variation based on the tentative estimation value of channel variation and the raw channel estimation value.
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申请公布号 |
US2004248541(A1) |
申请公布日期 |
2004.12.09 |
申请号 |
US20030737223 |
申请日期 |
2003.12.16 |
申请人 |
PARK JUNG-KEUN |
发明人 |
PARK JUNG-KEUN |
分类号 |
H04B1/69;H04B1/707;H04L25/02;(IPC1-7):H04B1/10 |
主分类号 |
H04B1/69 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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