%0 Journal Article
%T Research of QRD-LSL interpolation algorithm based on square-root-free<br>一种无平方根运算的QRD-LSL插值算法研究*
%A LIU Shang-feng
%A WANG Yong-min
%A XU Hua
%A <br>刘尚峰
%A 王永民
%A 许华
%J 计算机应用研究
%D 2012
%I 
%X To reduce the complexity of the QR-decomposition-based least-squares lattices(QRD-LSL) interpolation algorithm used in narrow-band interference(NBI) suppression, this paper proposed a square-root-free(SRF) QRD-LSL interpolation algorithm. The proposed interpolation algorithm, which was developed by applying SRF Givens rotation with feedback mechanism, could effectively avoid the square-root computations in QR-decomposition and improve QRD-LSL interpolation algorithm robustness in finite precision environment. The results of computer simulation confirm that the steady-state performance and the numerical robustness of the proposed algorithm outperforms the conventional QRD-LSL interpolation algorithm and holds good performance of NBI suppression in DSSS.
%K narrow-band interference
%K direct sequence spread spectrum(DSSS)
%K matrix decomposition<br>窄带干扰
%K 直扩系统
%K 矩阵分解
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=8240383F08CE46C8B05036380D75B607&jid=A9D9BE08CDC44144BE8B5685705D3AED&aid=F950C016BC33E901655423D1E569CBF6&yid=99E9153A83D4CB11&vid=771469D9D58C34FF&iid=38B194292C032A66&sid=547650636788ED84&eid=7E7F5B01D43BD73F&journal_id=1001-3695&journal_name=计算机应用研究&referenced_num=0&reference_num=7