ID 原文 译文
22335 仿真结果表明，在低门限时采用该文所提出的算法SCMA 用户 BER 性能明显好于仅采用基于门限的 MPA 的 BER 性能。 The simulation results show that better BER performance is achieved with the proposed scheme than that with the threshold-based MPA scheme for SCMA users.
22336 针对不连续地形难以精确重建地形高程的问题，将干涉图残差点和相邻像素点差异比较相结合的坏点判断方法与基于全变分能量函数的最大后验估计算法结合起来，该文提出一种改进的多基线 InSAR 高程重建方法。 This paper proposes an improved multi-baseline InSAR height reconstruction approach to reconstruct height models of discontinuous terrains through combining with the Maximum A Posteriori (MAP) estimation based on Total Variation (TV) model energy function and a defective pixel judgment method composed of interferogram residues and comparison of adjacent pixels differences.
22337 该方法利用干涉图残差点和相邻像素点差异比较对不连续点计算原理的不同，对基于全变分能量函数的最大后验估计算法重建的预估地形高程图进行坏点判断，有效判断出高程图不连续点中由于噪声或计算误差引起的坏点，并对预估地形高程图中坏点进行适当加权更新获得最终估计的地形高程图。 The proposed method utilizes the difference discontinuous pixels between interferogram residues and comparison of adjacent pixels differences, to make defective pixels judgment from reconstructed terrain graphs obtained by the MAP estimation based on TV model energy function, which estimates efficiently defective pixels caused by errors or noise from discontinuous pixels, and then updates relatively defective pixels to obtain the final terrain height estimation.
22338 该文算法在保留基于全变分能量函数的最大后验估计算法简便的优点的同时提高了目标地形高程的估计精度。 The presented algorithm not only keeps the convenience of MAP estimation algorithm but also improves estimation precision for height models of objective terrains.
22339 最后通过 2 种不同类型地形的仿真实验，表明该方法简单有效。 Experiences of two different types of terrain show that the proposed approach is efficient as well as valid.
22340 为提高语音通信系统在噪声环境下的使用性能，该文提出一种基于子带谱减与广义旁瓣抵消的双微阵列语音增强方法。 In order to improve the performance of speech communication system in noisy environment, a dual micro-array speech enhancement method based on subband spectrum subtraction and generalized sidelobe canceller is proposed.
22341 基于双微阵列及子带结构分析，首先分别在低频带采用可变过减因子谱减法抑制噪声，在高频带采用修改互功率谱谱减法抑制非相干性噪声部分，再结合广义旁瓣抵消与端点检测进一步抑制强相关性噪声的影响。 Based on dual micro-array structure and the subband structure analysis, this method suppresses the noise in the low frequency band by the spectrum subtraction method which may employ variable over-subtraction factor in it and suppresses the non-coherent noise part in the high frequency band by modifying cross power spectrum subtraction method, respectively. Then generalized sidelobe canceller and voice activity detector are combined with the method mentioned above to further suppress the influence of strong coherent noise further.
22342 实验结果表明，该方法能够更加有效地抑制噪声的影响并提高语音的可懂度。 The experimental results show that the proposed method can suppress the influence of noise and improve the intelligibility of speech more effectively.
22343 针对 K2 算法过度依赖节点序，遗传算法节点序寻优效率差的问题，该文提出一种直接对节点序进行评分搜索的贝叶斯结构学习算法。 The performance of the K2 algorithm depends on node ordering heavily, and the genetic algorithm can not find the node ordering effectively.
22344 该算法以 K2 算法为基础，首先通过计算支撑树权重矩阵，构建能够定量评价节点序的适应度函数。 For these problems, a new Bayesian structure learning algorithm, named NOK2 (Node Ordering searching for K2 algorithm), is proposed to solve the Bayesian structure learning problem by searching node ordering directly.