where H is an unknown impulse response of the channel,H′ = (h₀ h₁ . . . hm),the ′ character denoting transposition. The channel is driven with a known input signal S(n), whereS′(n) = (s(n) s(n-1) . . . s(n-m)).;According to the technique, the output x(n) of an adaptive filter, wherex(n) = S′(n) A(n)is compared with the channel output y(n) according to the Least Mean Squares (LMS) algorithm to develop an LMS error prediction signal. At the same time, the adaptive filter output x(n) is compared with the channel output y(n) according to the Sign Algorithm (SA) to develop an SA error prediction signal. If the LMS error signal is greater than or equal to a preselected value, then it is used to update the coefficients a(n) of the adaptive filter impulse response. If the LMS error signal is less than the preselected value, then the SA error signal is used to update the coefficients a(n)."/>
公开/公告号EP0345675A2
专利类型
公开/公告日1989-12-13
原文格式PDF
申请/专利号EP19890110080
申请日1989-06-03
分类号H03H21/00;
国家 EP
入库时间 2022-08-22 06:14:49