What does fiscal equalization effects the fiscal effort of local government ? can we estimate the intergovernmental fiscal relation virtually and propose some advices on public policy 通過對財(cái)政競爭和均等化的分析,能否對目前的政府間財(cái)政關(guān)系做出一個客觀的評價,并提出相關(guān)政策建議
The proposed algorithm lows the complexity by choosing decision delay in advance and then making solution of the equalizer tap coefficient , a new decision delay choice method is proposed , solution by using weight method , diagonal matrix transform , z extension and a new energy restrictive condition which restrains noise enhance , a new decision delay choice method is proposed , the simulation result shows that the proposed algorithm has better equalization effect and enhanced performance comparing to the general mmse algorithm , simulation research on the precision and dynamic scope of parameters in digital realization time domain equalization algorithm , design software and hardware of time domain equalizer . fourthly , there exist a lot of interfere in dsl line , especially , dsl works in multi - user mode , the near end interference is serious 通過先選擇判決時延,再進(jìn)行時域均衡器抽頭系數(shù)求解的方法降低了時域均衡計(jì)算復(fù)雜度;對于均衡器抽頭系數(shù)的求解使用了加權(quán)技術(shù),通過對角矩陣變換, z擴(kuò)展,使用不同的能量約束條件對算法求解,結(jié)果表明這種約束有效的抑制了噪聲增強(qiáng),與常用刪se比較,該算法有更佳的均衡效果,算法性能得到了提高:論文還對數(shù)字化實(shí)現(xiàn)時域均衡算法中每一部分參數(shù)的精度、變量的動態(tài)范圍進(jìn)行了模擬研究,對時域均衡的軟硬件實(shí)現(xiàn)進(jìn)行了設(shè)計(jì)。
In this case , time domain equalization algorithm based on channel estimation will influence equalization effect if choosing noise sensitive algorithm to estimate channel , so it is necessary to adopt an anti - noise and high estimation precision estimation algorithm . in this dissertation , a new time domain equalization algorithm based on low rank hankel approximati Dsl線路實(shí)際工作環(huán)境存在各種干擾,尤其當(dāng)多用戶時,串音干擾很嚴(yán)重,對于采用基于信道估計(jì)的時域均衡算法,如果使用對噪聲敏感的算法進(jìn)行信道估計(jì),必然影響均衡效果,因此需要采用具有抗噪聲,估計(jì)精度高