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- Based on the characteristic of target echo in ISAR, the original method of Doppler center estimation is ameliorated to increase the motion parameter estimation precision. 针对ISAR中目标回波的特点,对原始的多普勒中心估计方法进行了改进,提高了运动参数估计精度。
- The simulation shows that this data transition method conduces to improve the parameters estimation precision, and the algorithm dynamic performance is ameliorated too. 模拟结果表明这种方法在信号参数估计精度和动态跟踪性能等方面都能够满足高动态环境的要求。
- Problem of Parameter Estimation Precision Existing in Linearization Model of Nonlinear Regression 非线性回归模型线性化后的参数估计精度问题
- parameter estimation precision 参数估计精度
- It has excellent estimation precision, pairs automatically the x-axis direction cosines with the y-axis direction cosines and suffers no DOA ambiguity. 具有较好的估计精度,能实现方向余弦的自动配对,不造成波达方向的模糊性。
- Finally, the influences of the measurement noise and the range of slip on the estimation precision are evaluated . 同时还评估了测量噪声和转差范围对参数识别精度的影响。
- This algorithm has small computation amount load and has high estimation precision of doppler frequency rata-of-change. 算法具有计算量小、多普勒频率变化率估计精度高的优点。
- The computational results indicate that parameters estimation by Bayesian method and MCMC sampling has a high precision. 计算结果表明采用贝叶斯推理获得的模型参数估计具有很高的精度。
- Also, the CRB of parameter estimation of LFM under normal gauss circumstance is carried out and a real low boun... 另外推导出了一般高斯环境下的LFM参数估计的CRB界,为一般高斯环境下的估计的参数的方差提供实际下界。
- The results showed that EVI was the best index reflecting grassland yield variation,and the average estimation precision of the models was 80%. 结果表明:(1)EVI是反映产草量变化的最好指标,分类构建的模型平均测产精度达到了80%25;
- The appro-aches of recognition, determining order, parameter estimation and examination of th-ese models are presented. 给出了这三种模型的识别、定阶、参数估计和检验方法; 讨论了某些非平稳模糊随机时间序列;
- A study cased in Zhejiang Province, China, showed the fact that the three-phase sampling could produce the highest AFI area estimation precision. 用浙江省实际数据计算的结果表明:三相抽样精度明显比其他估计方法高。
- For the problem of PPS parameter estimation, the DPT method for PPS parameter estimation is introduced. 针对多项式相位信号的参数估计问题,介绍了基于DPT的PPS信号参数估计的方法;
- The random noises of systems are shown to be restrained effectively through orthonormal scaling transformation, and estimation precision is improved. 从理论上证明了经小波尺度变换后系统随机噪声的方差值减小,即噪声得到有效的抑制,从而大大提高了辨识精度。
- Data requirements of parameter estimations are thus reduced. 此方法可确实简化参数的估计与缩减其所需历史资料量。
- Because of occlusions and segmentation fragments, the estimation precision is impaired, even result in an unsuccessful tracking. 由于目标阴影、碎块等因素,估计精度受到影响,甚至导致跟踪的失败。
- Baum-Welch algorithm is often made to optimize parameter in parameter estimation problem. 在参数估计问题中常常要用Baum-Welch重估计算法来优化参数。
- The simulation re-sups show that the proposed method can nreatly improve the state estimation precision of sensor array passive trackinn system. 在很多方面的应用已经逐渐有替代广义卡尔曼滤波的趋势。
- As Hurst parameter estimated bias exists, the precision may be improved by using non-linear estimate, where ARFIMA model is proposed and used for verification. 从统计结果来看,样本序列呈现出尖峰、胖尾等有偏特征,明显不满足正态分布的假设,表明收益序列可能具有长程相关或记忆性。
- An abridged algorithm of 2D hidden Markov chain model and its parameter estimation method are made. 针对现有的二维隐马氏模型算法给出了一种简化算法及参数估计方法。