陳洪<sup>1</sup>，舒勤<sup>1</sup>，孟川杰<sup>1</sup>，王韜<sup>1</sup>，王鳳蘭<sup>2</sup>
（1.四川大學(xué)電氣信息學(xué)院，四川 成都 610065；2.眉山科學(xué)技術(shù)學(xué)校，四川 眉山 620020 ）
摘要：本文提出了一種新的基于二階統(tǒng)計(jì)量的盲信道辨識(shí)與均衡方法。通過對(duì)接收信號(hào)過采樣，等效的信道矩陣有特殊的結(jié)構(gòu)可以提供足夠的信道信息給我們來估計(jì)信道矩陣。根據(jù)Tong等人的觀點(diǎn)，本文給出了另外一種證明的方法，并由此得到了一種新的基于二階統(tǒng)計(jì)量的盲信道辨識(shí)與均衡方法。仿真結(jié)果表明此方法和Tong的方法具有同樣的均衡效果。
關(guān)鍵詞：二階統(tǒng)計(jì)量；盲信道辨識(shí)；均衡；過采樣
中圖分類號(hào)：TN915.06 文獻(xiàn)標(biāo)識(shí)碼：A 文章編號(hào)：1672-4984(2006)03-0100-03
A algorithm for blind identification and equalization based on second-order statistics
CHEN Hong<sup>1</sup>,SHU Qin1,MENG Chuan-jie<sup>1</sup>,WANG Tao<sup>1</sup>,WANG Feng-lan<sup>2</sup>
(1.College of Electric Information, Sichuan University, Chengdu 610065, China;2.Meishan School of Science and Technology , Meishan 620020,China)
Abstract: This paper presented a new approach to blind channel estimation and equalization based on Second Order Statistics(SOS). Due to oversampling, the equivalent channel matrix possesses a particular structure which making estimating the channel possible. According to Tong’s point, this text gave another kind of proving method and got a kind of approaches to blind channel estimation and equalization based on Second Order Statistics. Simulation example was provided to demonstrate the algorithm as good as Tong’s techniques.
Key words: SOS；Blind channel estimation；Equalization；Oversampling
