ID |
原文 |
译文 |
2733 |
同时利用互质理论消除了稀疏阵列角度估计的不确定性,证明了互质阵列模型下采用双向传播算子方法进行俯仰角和方位角估计的无模糊性。 |
Further more, the multi values of sparse array are eliminated by using coprime theory, andthe proof of unambiguous for two-dimensional DOA estimation under the coprime array model is provided. |
2734 |
对算法的复杂度进行理论分析,并给出了平面阵列角度估计的克拉美罗界推导。 |
This paper alsoanalyzes the complexity and gives the Cramer Rao lower bounds (CRB)of coprime rectangular array. |
2735 |
理论分析与仿真结果表明,算法不需要进行角度匹配和谱峰搜索,在相同条件下的均方根误差性能优于均匀平面阵的多重信号分类算法, |
Theoretical analysisand simulation results show that this algorithm does not need to angle matching and spectrum peak search, under the sameconditions, the root mean square error (RMSE)performance is better than the multiple signal classification (MUSIC)algo-rithm of uniform rectangular array. |
2736 |
并且以较低的复杂度无模糊的达到了高维网格搜索的精度。 |
At the same time, the proposed algorithm can reach the same accuracy of high dimension-al grid search with low complexity and without ambiguity. |
2737 |
悬空波导的测量方法有直接测量和间接测量两种。 |
Elevated duct can be measured through direct or indirect ways. |
2738 |
传统的直接测量手段只能得到单点的波导信息。间接测量也存在一定的局限性,不能获取高时空分辨率的波导多维空间信息。 |
Nevertheless, both of these traditional meth-ods are inadequate because direct measurement can only obtain single-point information, while indirect measurement can notobtain multidimensional information with high temporal and spatial resolution. |
2739 |
而静止气象卫星由于其高时空分辨率观测的特点,能对我国沿海海域大气环境进行时空四维监测。 |
Geostationary meteorological satellite can beused to monitor ocean atmospheric environment because of its ability to capture four-dimensional information with high tem-poral and spatial resolution. |
2740 |
文中借鉴国外一种基于气象卫星数据反演悬空波导的方法,利用我国静止气象卫星 FY-2G 的云分类和云顶温度数据、地面观测数据及探空数据,分析该方法中各影响因素的敏感性,初步检验了该方法在我国沿海的适用性。 |
This paper presents a foreign inversion method of elevated duct based on geostationary meteoro-logical satellite data, and the applicability of this method was verified with cloud classification and cloud top temperature pro-ductions from FY-2G, ground-based meteorological observation and radiosonde data in Chinese regional seas. |
2741 |
提出建立本地海域悬空波导反演方法的几个关键问题: |
Several key re-search aspects are needed to be solved for setting up the method in Chinese regional seas as, which include: |
2742 |
①选用高精度云顶温度反演数据; |
Using high-pre-cision cloud-top temperature data, |