ID 原文 译文
38436 最后,以无人机GPS/INS组合导航系统为应用背景,对三阶CKF、五阶CKF和OT5-CKF进行了仿真对比分析。 Unmanned aerial vehicle (uav) is discussed, the GPS/INS integrated navigation system as the application background, the third-order CKF, five CKF and OT5 - CKF has carried on the simulation analysis.
38437 结果表明,同等观测条件下OT5-CKF的滤波估计精度明显高于前两者。 The results show that the equivalent observation conditions OT5 - CKF filtering estimation accuracy is significantly higher than the former two.
38438 针对过程噪声和量测噪声受到脉冲噪声影响而呈现非高斯分布,且噪声统计特性不精确从而导致估计精度下降的问题,提出一种基于最大熵方法的变分贝叶斯自适应卡尔曼滤波(maximum correntropy variational Bayes adaptive Kalman filter,MCVBAKF)算法,并将其应用于捷联惯导系统(strapdown inertial navigation system,SINS)/全球卫星定位系统(global positioning system,GPS)组合导航系统。 In view of the process noise and measurement noise affected by impulse noise and gaussian distribution, not defective and noise statistical properties which led to the decrease of the estimation precision of problem, put forward a method based on maximum entropy change db bayesian adaptive Kalman filtering (maximum correntropy variational Bayes theorem the adaptive Kalman filter, MCVBAKF) algorithm, and applied to the strapdown inertial navigation system (strapdown inertial navigation system, SINS)/global positioning system (global positioning system, GPS) integrated navigation system.
38439 首先,使用最大熵鲁棒滤波方法对由脉冲噪声产生的野值问题进行处理;然后,通过改进的变分贝叶斯自适应方法进行后验更新,估计噪声,收敛所估参数的估计值;最后,进行了仿真对比。 First, using maximum entropy filtering method is robust to outliers problems produced by impulse noise processing;Then, by improving the db bayesian adaptive approach for posterior updates, estimated noise, convergence estimation parameters estimate;Finally, the simulation contrast.
38440 结果表明,MCVBAKF在复杂环境下可以有效提升滤波精度和稳定性。 The results show that the MCVBAKF under complex environment can effectively improve filtering accuracy and stability.
38441 目标总散射场往往包含多种不同的散射机理,分解不同的散射机理,对于复杂目标电磁散射认知、特征和目标识别及散射特性控制具有重要意义。 Total scattering field goals often contain a variety of scattering mechanism of decomposition of different scattering mechanism, for complex cognitive, feature and target recognition and target electromagnetic scattering scattering characteristics control is of great significance.
38442 基于不同散射机理回波到达接收机具有时隙差这一物理基础,实现了镜面散射、多次散射等散射机理的分解。 Based on different mechanism of scattering echo reaches the receiver has the time slot is poor this physical basis, implements the mirror, and multiple scattering scattering mechanism of decomposition.
38443 最后给出了多个模型的仿真实例,在其时频分析结果、雷达成像和雷达散射截面对比结果中,可以清楚地观察到不同散射机理得到了有效的分解,验证了本文方法的可行性和正确性。 Finally multiple model simulation examples are given, in time and frequency analysis, radar imaging, and the result of the radar scattering cross section contrast, can be clearly observed different scattering mechanism has been effectively decompose, verify the correctness and feasibility of the method in this paper.
38444 针对装备保障资源供给能力评估信息主观性和不确定性强、评估结果可信度低的问题,提出了一种基于萤火虫算法和证据推理(firefly algorithm-evidential reasoning,FA-ER)的评估方法。 For equipment support resources supply capability assessment information strong subjectivity and uncertainty, the problem of low reliability evaluation results, and evidence reasoning is proposed based on a firefly algorithm (are algorithm - evidential reasoning, FA - ER) assessment method.
38445 首先,通过直觉模糊熵处理不确定信息,确定初始权重范围。 First of all, through the intuitionistic fuzzy entropy deal with uncertain information, determine the scope of the initial weights.