Order Determination and Parameter Estimation of Blind Channel Identification
| Autor: | Yu-Ting Cheng, 鄭有廷 |
|---|---|
| Rok vydání: | 2002 |
| Druh dokumentu: | 學位論文 ; thesis |
| Popis: | 90 In this thesis, we investigate two blind channel identification methods. The first is the subspace methods for blind channel identification [12], and the second is the least-squares approach to blind channel identification [11]. In the second method, it did not discuss the method of channel order determination. In this aspect, we find that there is a regular relationship between the channel order and the rank of the data matrix formed by output data signals. First, we take an order which is bigger than the true channel order (over-estimated channel order), and use it to form the data matrix. And we use an existent method to estimate the rank of the original data matrix. Then we use it to estimate the channel order and estimate the channel coefficients. Finally, we find that the computations of the least squares approach is less than that of the subspace methods. |
| Databáze: | Networked Digital Library of Theses & Dissertations |
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