ID	原文	译文
54197	目前，国外在地基天文雷达领域的研究上已趋于成熟，而我国正处于起步阶段。	At present, foreign research in the field of earth-based astronomical radar has become mature, while my country is in its infancy.
54198	为解决地基雷达对月成像中的难点问题，本文首先基于地月运动几何模型分析了延迟多普勒成像理论的关键问题，包括成像原理、分辨率和模糊问题。	In order to solve the difficult problems in earth-based radar mapping of the moon, this paper firstly analyzes the key prob?lems of delay Doppler mapping theory based on the geometric model of the earth-moon motion, including the mapping prin?ciple, resolution and blur problem.
54199	接着，本文提出了一种参数化运动补偿算法，该算法以图像熵值为评价指标进行参数搜索，并采用布谷鸟搜索算法提升参数搜索效率。	Next, this paper proposes a parametric motion compensation algorithm, which uses im?age entropy as an evaluation index to search for parameters, and uses cuckoo search algorithm to improve the efficiency parameter search.
54200	最后，通过仿真验证了算法的有效性，为将来开展试验验证提供了技术支撑。	Finally, the effectiveness of the algorithm is verified by simulation, which provides technical support forfuture experiments.
54201	昆虫雷达通过测量波束中昆虫的极化信息，估计昆虫头部朝向，进而完成对昆虫迁飞轨迹的监测。	By measuring the polarization information of insects in the beam, entomological radar can estimate the orientation of insect, and then complete the trajectory monitoring of migratory insects.
54202	但是，全极化雷达系统中的非理想因素会影响到昆虫头部朝向的估计精度。	However, some non-ideal factors in the fully polarimetric radar system will affect the accuracy of insect orientation estimation.
54203	为了研究全极化系统幅相不一致对朝向测量的影响，本文对昆虫极化散射特征和全极化系统建模，并对朝向误差进行分析，得到了朝向误差和通道间幅相不一致的关系。	In order to study the influence of amplitude and phase imbalance between channels in fully polarimetric radar system on orientation measurement, the polarization scattering characteristics of insect and fully polarimetric system are modeled, the orientation error is analyzed, and the relationship between orientation error and channel imbalance is obtained.
54204	理论分析和仿真结果表明昆虫朝向误差同时与系统、自身散射特性以及真实朝向相关，系统幅相不一致会导致估计出来的昆虫朝向偏向极化方向。	Theoretical analysis and simulation results show that the insect orientation error is related to the system, its own scattering characteristics and the real orientation, and the channel imbalance will cause the estimated insect orientation to deviate to the polarization direction.
54205	这些工作为全极化系统设计提供了新的思路。	These works provide a new way for the design of fully polarimetric radar.
54206	现代雷达往往需要在复杂多变的电磁环境中完成多种任务。	Multi-function radar can perform various missions simultaneously in a complex and variable electromagnetic environment.