ID 原文 译文
10354 理论分析了导航星旁瓣信号接收的可行性,基于嫦娥五号飞行试验器轨道特性研究了接收机接收信号功率及可视导航星数目与地心距变化的关系,并给出了理论几何定位因子。 ‭Theory to analyze the feasibility of navigation star sidelobe signal receiving, based on the goddess of the moon flight 5 tester receiver received signal power and orbital characteristics studied visual navigation star number and the center of the earth from the relationship of change, and the theory of geometric location factor is given.
10355 分析表明,接收机灵敏度达到-160dBm条件下,可具备6×104 km以下高度的定位能力。 ‭Analysis shows that the receiver sensitivity - 160 DBM conditions, have 6 x 104 km below the high level of ability.
10356 对获取的导航解数据及伪距进行了处理分析,利用导航解进行定轨计算,导航解的噪声水平优于10m。 ‭To obtain navigation solution according to and pseudorange has carried on the processing analysis, using the orbit determination of navigation solution, the noise level of the navigation solution is better than 10 m.
10357 利用差分伪距数据进行定轨计算,残差噪声约为8.‭5m,使用1h数据可以实现定轨预报1h优于百米的精度,达到地基数据长弧条件下定轨预报精度水平。 ‭To orbit determination using differential pseudorange data computation, the residual noise of about 8. ‭5 m, use 1 h data can realize the orbit determination forecast precision of 1 h is superior to the hundreds of meters, achieve the foundation data long arc conditions made a track forecast accuracy level. ‭
10358 针对云层遮挡影响光学卫星成像质量的问题,以新一代敏捷卫星任务规划问题为背景,对云层信息进行建模,提出了一种云层遮挡时间窗口计算方法,通过引入预判和二分法推进计算环节来提高遮挡窗口的求解效率。 For cloud cover problem, affecting the quality of optical satellite imaging to a new generation of agile satellite mission planning problem as the background, the cloud information modeling, this paper proposes a method to calculate the cloud cover time window, through the introduction of anticipation and dichotomy advance calculation link to improve the efficiency of solving the keep out the window.
10359 根据任务约束条件建立了考虑云层信息的敏捷卫星任务规划模型,并利用蚁群算法进行寻优计算。 According to the task constraints is established considering the clouds agile satellite mission planning model of information, and the use of ant colony algorithm for optimization calculation.
10360 具体设计了状态转移规则、任务安排规则和信息素更新规则。 The concrete design of state transition rules, task arrangement and pheromone update rules.
10361 通过10个不同规模的情景案例进行仿真对比分析,仿真结果验证了云层模型和提出的处理方法在敏捷卫星任务规划问题上的有效性。 Through 10 different scale of case simulation comparison analysis, the simulation results verify the processing of cloud model and puts forward the effectiveness of the method on agile satellite mission planning problem.
10362 为了确定非圆信号波达方向(direction-of-arrival,DOA)估计中参数化校正的方差下限,基于阵列误差影响下的随机性非圆信号模型与联合信源时域自相关特性的非圆信号模型,分别推导了DOA参数与阵列误差参数的联合估计克拉美罗界(Cramer-Rao bound,CRB)。 In order to determine the non-circular signal DOA (direction of - concatenated, DOA) variance threshold to estimate the parameterization of correction, based on the array error under the influence of the randomness of the non-circular signal model and joint source autocorrelation characteristics of non-circular signal model of DOA and array error parameters was deduced respectively joint estimation of gram luo world of Latin America (Cramer - Rao bound, the CRB).
10363 通过将推导的非圆性能界与未利用非圆特性的性能界进行对比分析,理论证明了非圆性能界比未利用非圆特性的性能界更低,且两者的差异在低信噪比和大非圆率信号入射的情况下较大。 ‭By putting a non-circular performance bound is derived with unused non-circular characteristic industry, this paper compares and analyzes the performance of theory proved that the non-circular performance bound than unused non-circular characteristic performance bound is lower, and the differences in the rate of low SNR and large non-circular signals under the condition of incident is bigger.