ID 原文 译文
883 首先，通过形象的举例解释了约束优化问题通过拉格朗日乘子法转换为非约束优化问题，并根据相关文献分析拉格朗日乘子与量化参数的关系。 First, an ex-ample is employed to explain how the constrained optimization problem is converted into an unconstrained optimization problem based on the Lagrange multiplier method, and the relationship between Lagrange multiplier and quantization parame-ter is analyzed according to relevant references.
884 其次，分析了编码过程中存在的率失真依赖性，并分类讨论近年提出的依赖率失真优化方法。 Second, the rate-distortion dependencies in the process of video coding areanalyzed, and the dependent RDO methods presented in recent years are classified and discussed.
885 然后，简要介绍了率失真依赖关系在码率控制比特分配中的影响。 Third, the effect of the rate-distortion dependencies on bit allocation for rate control is discussed.
886 最后通过分析比较不同率失真优化技术的特征和性能，提出当前面临的挑战和值得进一步探索的工作。 Finally, the features and performance of different RDO methods are tabulated for analysis and comparison, and the existing challenges and the research works deserving further ex-ploration are presented.
887 文章分析了暗室测试中有限测试距离对 GNSS 抗干扰天线阵测量结果的影响。 This paper analyzes the limited distance induced effects of measurement performance for GNSS anti-jam-ming arrays.
888 在固定波束情况下，远场测试条件遵循经典结论，即在待测天线与探头天线距离大于 2D2/λ(D 为待测天线有效孔径)时，有限测试距离对方向图主瓣影响很小，但会掩盖方向图波瓣零点; In the case of fixed beam array, according to the conventional far field condition, when the distance between the antenna under test and the probe antenna is longer than 2D2/λ (D is the size of antenna aperture), the limited test distancehas little effects of the main beam, however, the first null of the pattern is partially filled.
889 在自适应处理情况下，由于自适应权会自动补偿干扰导向矢量误差，所以有限距离误差并不会对零点的位置和深度造成影响，对方向图除零点之外部分的增益造成一定偏差， In the case of adaptive array, the nulls are kept for the limited distance induced steering vectors of interferences will be compensated by adaptive weights. The gain except for the nulls has some changes,
890 但是这些增益偏差不会对抗干扰天线阵的平均阵列增益覆盖率造成显著影响。 but the bias has no remarkable effects of average angular coverage for array gain.
891 所以，在满足经典远场条件的暗室内进行抗干扰测试，接收机的干扰抑制能力和可用性能均不会受到影响。 We claim that the capability of anti-jamming and the usability of the receiver will be kept, when the test distance meet the condition of minimized far field distance.
892 增量式属性约简是一种针对动态环境下的数据挖掘方法。 Incremental attribute reduction is a data mining method for dynamic environment.