ID 原文 译文
47756 在假设校正源方位扰动误差较小的情况下,通过一阶Taylor级数展开的方式,建立了一种关于阵列误差矩阵的结构总体最小二乘优化模型用以抑制校正源方位扰动误差的影响,基于该优化模型,设计出一种数值优化算法用以实现阵列误差矩阵的鲁棒校正。 Under the assumption that under the condition of small disturbance source azimuth error correction, through the way of the first order Taylor series expansion, a about array error matrix is established the structure of the total least squares optimization model is used to restrain the effect of disturbance source azimuth error correction, based on the optimization model, designed a numerical optimization algorithm is used to make the robust array error matrix correction.
47757 数值实验验证了文中新算法的有效性和优越性。 Numerical experiment verifies the validity and superiority of the new algorithm in this paper.
47758 链路的间歇性连通以及稳定的端到端路径的缺乏使得延迟容忍网络(delay tolerant network)中经常采用存储-携带-转发的方式来保证消息传输的到达率。 Link the intermittent connectivity and lack of stable end-to-end path delay tolerant network (delay tolerant network) often adopt the way of storage - - to carry forward to guarantee the arrival rate of message transmission.
47759 然而由于网络资源受限,该转发方式下产生的大量的消息副本将造成巨大的资源消耗,最终导致网络拥塞。 However due to the limited network resource, the way forward of a large number of message copies will cause huge resource consumption, eventually lead to network congestion.
47760 提出一种基于概率接纳和丢弃(probabilistic acceptance and drop,PAD)的拥塞控制算法PAD。 Put forward a kind of based on the probability of acceptance and discarded (probabilistic acceptance and drop, PAD) congestion control algorithm of PAD.
47761 该算法结合了队列长度和输入/输出速率来检测拥塞,各个节点根据当前的拥塞状态来确定接收和丢弃消息的概率,从而实现较小的开销和较高的消息到达率。 The algorithm combines the queue length and the input/output rate to detect congestion, each node according to the current state of congestion to determine the probability of receiving and discard messages, so as to realize the cost of a smaller and higher rate of message arrival.
47762 此外,基于生灭模型构造了消息副本数的连续时间马尔可夫链,并对消息到达率进行了理论分析。 In addition, based on the birth and death model constructed message replications continuous time markov chains, and the message arrival rate are analyzed in theory.
47763 理论分析和仿真结果证明,与其他算法相比,PAD算法在保证较小的网络开销和较短的端到端延迟的同时,消息到达率显著地提高了130%以上。 Theory analysis and simulation results show that, compared with other algorithms, the algorithm of PAD in smaller network overhead and lower end-to-end delay at the same time, the message arrival rate significantly improved over 130%.
47764 机载气象雷达无法检测雷达回波信噪比(signal-to-noise ratio,SNR)很低的晴空湍流和干性风切变。 Airborne weather radar can't detect radar echo SNR (signal - to - noise thewire, SNR) is low clear-air turbulence and dry wind shear.
47765 提出了一种参数化的机载气象雷达回波谱矩估计方法,该方法利用非线性最小二乘(nonlinear least-squares,NLS)方法拟合回波的自相关序列估计谱矩。 This paper proposes a parameterized airborne weather radar to spectral moment estimation method, the method using the nonlinear least squares (nonlinear further - squares, NLS) method fitting echo autocorrelation sequence estimation spectral moment.