ID 原文 译文
7344 针对卫星导航快速定位中的观测方程病态问题,提出一种利用自适应加权的差分进化(differential evolution,DE)算法结合Tikhonov正则化求解病态方程的方法。 , according to the theory of GPS rapid positioning observation equation ill-posed problems, put forward a kind of using the adaptive weighted differential evolution (differential evolution, DE) algorithm combined with Tikhonov regularization method of morbid equations.
7345 在深入分析DE算法寻优过程的基础上,通过自适应地改变当前个体的加权因子,并在目标函数中引入正则化项,快速稳健地求解病态方程。 In the optimization process on the basis of in-depth analysis of DE algorithm, through the adaptive weighted factor to change the current individual and introduce regularization item in the objective function, fast steady morbid equation.
7346 仿真实例表明:当法矩阵条件数为105左右时,新方法的解算精度比传统的截断奇异值法、Tikhonov正则化法、遗传算法(genetic algorithm,GA)和DE算法分别高约5倍、2倍、1.5倍和1倍; Simulation examples show that when the method of matrix condition number is around 105, a new method of calculating precision than the traditional method of truncated singular value, Tikhonov regularization method, genetic algorithm (based algorithm, GA) and DE algorithm is about 5 times higher, respectively 2 times, 1.5 times and 1 times;
7347 迭代次数是DE算法的22.37%、GA算法的5.67%,寻优速度最快; The number of iterations is 22.37% and 5.67% of the GA algorithm of DE algorithm, optimization fastest
7348 加入粗差后,新方法的解算精度基本不变,即具有较好的稳健性。 ;After joining gross error, a new method of calculating precision basically remain unchanged, which has good robustness.
7349 同时同频全双工(full-duplex,FD)与多输入多输出(multiple-input multiple-output,MIMO)技术的结合尽管可成倍地提升MIMO系统的频谱效率,但由此而引起更为复杂的干扰问题限制了FD技术的实际应用。 Same frequency at the same time full-duplex (full - duplex, FD) and multiple input multiple output (multiple - input multiple output, MIMO) technology is the combination of although can improve spectrum efficiency of MIMO system exponentially, but the interference caused by more complicated problem limits the practical application of technology of FD.
7350 为此,基于干扰对齐(interference alignment,IA)思想,提出一种适用于多小区FD-MIMO系统的干扰解决方案。 Therefore, based on the interference alignment (interference alignment, IA) thought, put forward a kind of applicable to many FD - the interference of MIMO system solutions.
7351 该方案同时适用于FD基站FD用户(FD-BS-FD-User)和FD基站半双工(half-duplex,HD)用户(FD-BS-HD-User)两种模型。 The scheme also applies to the FD base station FD users (FD - BS - FD - User) and FD base station half duplex (half - duplex, HD) User (FD - BS - HD - User) two models.
7352 该方案首先根据多对一(many-to-one,MTO)线性IA算法,通过闭式求解来消除小区间和小区内上行干扰及下行干扰; The scheme according to more than one (the things - to - one, MTO) linear IA algorithm, through the closed solution to eliminate the districts and the uplink interference and downlink interference in the district;
7353 然后基于上行用户发送对下行用户接收所造成的残留干扰,构建目标函数; Then based on the uplink users to send to the downstream users receive the residual interference caused by constructing the objective function;