Techniques for ensuring the global convergence of the shamanskii modification of the newton method had not yet been studied since this iterative scheme was proposed 這種修正牛頓法自提出以來,其收斂性一直未被研究。但是最近,f
The harmonic analysis method can save much computer time than the iterative scheme in time domain; it is very useful for the complex problem that needs a great of iterative 頻域法與常規(guī)的時(shí)間步進(jìn)法相比,可以節(jié)省大量的計(jì)算機(jī)時(shí)間,對(duì)于需要大量迭代過程的復(fù)雜問題尤為重要。
A monotone iterative scheme is developed for proving the existence and uniqueness of the periodic solutions of the nonlinear discrete scheme, and the computational algorithms for the periodic solutions are also provided 為了證明解的存在唯一性,建立了一個(gè)單調(diào)迭代算法,該算法也給出了一個(gè)求解算法。
A serially concatenated iterative scheme ( bpcm-id ) combining low-density parity-check codes ( ldpc ) with multilevel modulation is proposed . differ from other serially concatenated iterative decoding schemes, the whole iterative process of bpcm-id is divided into outer iteration and inner iteration to avoid too much errors feedback to the demapper which may cause severe degradation of decoding performance 論文提出了一種新的多級(jí)ldpc碼的概念、基本特性、構(gòu)造準(zhǔn)則和搜索算法,給出一種融合mlc/bicm的聯(lián)合編碼調(diào)制系統(tǒng)框架,與傳統(tǒng)mlc系統(tǒng)區(qū)別在于用一個(gè)多級(jí)ldpc碼取代多個(gè)分量碼。
The computer program has following advantage : the solution of main blade is by iterative scheme in time domain, the kutta condition is used by explicit equal pressure condition, the jacobian matrix which can reflect the influence on the difference between the upper and lower surface at trailing edge by dipole is calculated in each iterative procedure, in order to improve the convergence of iteration 本文編制的螺旋槳非定常性能預(yù)報(bào)程序是針對(duì)主葉在時(shí)域中迭代求解的,kutta條件采用的是顯式的等壓條件,求解中為了提高迭代的收斂性,在每次迭代中都重新計(jì)算反映偶極子強(qiáng)度對(duì)尾緣處上下表面壓力差影響的jacobi矩陣。