反向通道式盲通道估測方法

專利類型

發明

專利國別 (專利申請國家)

中華民國

專利申請案號

103100778

專利證號

I 532340

專利獲證名稱

反向通道式盲通道估測方法

專利所屬機關 (申請機關)

國立臺灣大學

獲證日期

2016/05/01

技術說明

一種反向通道式盲通道估測方法，其包括：產生一具有對稱性循環字首之傳送訊號；自傳送訊號中解析出一具有預定零核子空間及其對應之基底向量；將傳送訊號經由通道傳送至接收端；依據基底向量計算出第一矩陣，並依據第一矩陣與接收端之接收訊號計算出第二矩陣；依據第二矩陣計算出非負限定矩陣；將非負限定矩陣進行特徵值分解以產生特徵向量；以及依據特徵向量計算出通道之通道增益之資訊。藉此，本發明可快速取得通道資訊並維持低運算複雜度。 An inverse-channel-based blind channel estimation method is provided, which comprises: generating a transmitted signal with a symmetric cyclic prefix; resolving out a predetermined null subspace and basis vectors corresponding to it from the transmitted signal; transmitting the transmitted signal to received terminal through a channel; obtaining a first matrix according to the basis vectors, and obtaing a second matrix according to the first matrix and received signal of the received terminal; obtaining a non-negative definite matrix according to the second matrix; decomposing the non-negative definite matrix by invoking eigenvalue decomposition to obtain an eigenvector; and obtaining information of channel gain of the channel according to the eigenvector. Thereby, the invention can obatain channel information quickly, and keep less computational complexity.

備註

本部(收文號1110044586)同意該校111年7月13日校研發字第1110052438號函申請終止維護專利(國立臺灣大學)

連絡單位 (專責單位/部門名稱)

產學合作總中心

連絡電話

33669945

網址