Method and device for realizing automatic gain control |
Title： |
| Method and device for realizing automatic gain control |
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Application Number： |
200410058215 |
Application Date： |
2004/08/17 |
Announcement Date： |
2006/02/22 |
Pub. Date： |
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Publication Number： |
1738196 |
Announcement Number： |
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Grant Date： |
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Granted Pub. Date： |
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ApplicationType： |
Invention |
State/Country： |
94[China|shenzhen] |
IPC： |
H03G 3/20, H03G 3/28, H04B 1/06 |
Applicant(s)： |
Huawei Technologies Co., Ltd. |
Inventor(s)： |
Lu Wenkai, Wang Bin, Yang Yong, Feng Shulan, Liu Huabin |
Key Words： |
Method, device, realize, automatic gain control |
Abstract： |
The invention provides a method for reaching auto-gain control and its device. The method comprises that using the method of quadratic function matching to attain the observable estimated value and using the method of least mean square error to calculate the total gain control signal; the device mainly supplies a quadratic weighted detecting module which can attain the observable estimated value by the method of quadratic function matching and a self-adaptive control signal calculate module which can calculate the total gain control signal by the method of least mean square error. The invention increases the accuracy of attained observable estimated value and the total gain control signal, to improve the properties of catching time, traceability, and the signal-to-noise ratio of said system, therefore, the whole property of system is improved. |
Claim： |
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PCT： |
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