| ID | 原文 | 译文 |
| 13594 | 牵引变电所的电磁辐射低于发射限值, 对人体及周边弱电设施的干扰很小。 | EMR of Xijiang traction substation is less than emission limit, and has little interference to human body and surrounding weak facilities. |
| 13595 | 针对相关干涉仪测向系统, 提出了一种基于压缩感知的测向算法。 | An algorithm based on compressive sensing is proposed for direction finding with correlative interferometry. |
| 13596 | 该算法将相关干涉仪的测量矢量分解为以测向数据库为基底的含有噪声的稀疏表示, 采用再加权的l1范数凸优化算法, 迭代更新加权矢量, 以逼近最优的l0范数。 | It decomposes the measurement vector of a correlative interferometer into a noise-contaminated sparse representation with respect to the database, and performs reweighted l1-norm optimization to approximate the optimal l0-norm optimization, which updates the weights iteratively. |
| 13597 | 所提算法和传统的计算相关系数最大值方法相比, 额外利用了辐射源信号在空域上的稀疏性, 可以对同频多信号进行测向。 | Compared with the conventional method of correlation coefficient maximization, the proposed algorithm accounts for the spatial sparsity of the emitters, which leads to its capability of direction finding of multiple signals of the same frequency. |
| 13598 | 采用计算机仿真对所提算法的性能进行了验证。 | Simulated results have demonstrated the performance of the proposed algorithm. |
| 13599 | 对北极500MHz非相干散射雷达2007年5月—2008年2月期间73天的空间碎片观测数据进行了统计分析。 | Space debris observation data based on the 500 MHz incoherent radar at 78°N are analyzed statistically. |
| 13600 | 主要结果如下：1) 共观测到88 679个空间碎片, 每天平均约1 215个, 每小时平均约50个。 | Main results are as follows:the total number of space debris observed are 88 679, about 1 215 per day and 50 each hour. |
| 13601 | 2) 8001 000km的空间碎片数目明显多于其他探测距离门区域, 空间碎片速度在-1.251.25km/s对称分布, 空间碎片尺寸主要分布在310cm区间。 | The number of space debris in the range from 800 to 1 000 km is notably larger than others. The radial velocity almost distributed evenly in the range from-1.25 to 1.25 km/s. The effective diameter is about 3—10 cm. |
| 13602 | 3) 从数天的短时间尺度来看, 空间碎片分布特征变化较小;从数月的长时间尺度来看, 空间碎片数量总体呈增加趋势, 高度分布范围由集中逐渐扩散。 | In the short period, the number distribution of space debris has little variations, but in the long period, the number of space debris show a increasing trend and the distribution coverage turn a little wider. |
| 13603 | 4) 从地方时分布看, 6—8LT和12—14LT空间碎片数目变密集。 | The number of space debris reach the maximal from 6 to 8 LT and from 12 to 14 LT daily. |