参数估计

The variation of parameters before and after multiply transformation on original sequence is studied.

研究了该估计方法下对原始序列进行数乘变换后参数的变化特征。

Aiming at the dynamic performance of frequency tracker designed specifically for laser Doppler velocimeter, the analysis was accomplished and some results of the experiments are presented.

针对激光多普勒测速仪常用信号处理设备———频率跟踪器，采用实验方法分析了其动态响应特性及影响因素，发现其动态响应参数并不能全面反映其在实际测试中的动态响应能力，实际测试中的动态响应能力明显低于通常的估计。

However, SOC can not be measured directly but estimated from other acquirable information.

然而，荷电状态为不可直接测量的参数，只能通过其它可获取信息对其进行估计。

A H_∞ filter is designed to estimate the navigation parameters for aerocraft vision navigation.

提出了用H∞滤波估计飞行器视觉导航参数。

In this paper,we give the analytic way to estimate the parameter of RED,which is more accurate and stable than the self-configuring,and then present the amendatory algorithm of RED,which is demonstrated by simulation to be more adaptive,with lower transfer delay and jitter.

在本文中，作者首先给出了估计流量特性的解析方法，该方法较参数自适应具有更好的稳定性和准确性；并据此提出了一种RED改进算法，最后通过动态仿真，证明该改进算法提高了RED的适应性，降低了网络时延，减小了时延抖动。

The experimental results show that the mean particle size of griseofulvin precipitated by RESS is smaller than 1, 0μm, narrow distribution and 95％ fine particles is smaller than 1. 0μm. Increase of the pre-expansion pressure, the extraction temperature, the expansion chamber temperature, the spraying distance, the concentration of cosolvent and decrease of the nozzle diameter resulted in decrease of the particle size under the operating condition studied. Enhancement of the pre-expansion temperature resulted in increase of the particles size. The SEM of GF shows that the shape of original is atactic and a wide size distribution, but the microparticles obtained by RESS is reverse. Similar melting points and XRD patterns were observed for the original material and the precipitates obtained by RESS.

实验结果表明，用含夹带剂的RESS法制备的灰黄霉素微粒的平均直径在1μm左右，且分布均匀，95％微粒在1μm以下，仅用CO〓作为超临界流体制备的微粒与上述方法制备的微粒的平均直径和分布相似，只是产量太低，而用机械法制备的微粒平均直径在3μm左右且分布较宽；不同的过程参数对沉析微粒尺寸有不同的影响，预膨胀压力、膨胀室温度、溶解温度以及夹带剂浓度的提高或增大，均可使沉析微粒的直径变小；预膨胀温度提高，所得微粒的直径变大；喷射距离的增加，沉析微粒的直径变小；喷嘴直径越小，由此制得的微粒的直径就越小；根据实验结果还可知道，通过理论计算的马赫盘处微粒的直径可以较好地估计出膨胀室中收集到的微粒的直径。

The breeding values of 12 dairy bull, were evaluated by BLUP method, and the parameters μ, h_i, g_i, S_(jk were obtained by using computer. Comparing this evaluation with thnt of not using relationship matrix, there are some difference between them. In the calculation, A~(1-)should be added to the elements of bull, effect on the diagonal of matrix.

本文以南京市12头乳用种公牛(其中引进上海市6头、合肥市1头的冻精)为实例，应用公牛间有亲缘关系的BLUP法估计其育种值，电算求得参数μ、h_i、g_i、S_(jk，按育种值排列优劣名次，并与不加入公牛间亲缘关系的结果进行比较，发现两法间略有差异，其计算方法在矩阵对角线的公牛效应元素上加A~(1-)(即公牛间亲缘关系的逆阵)即可。

Age of dam had apparent influences on crimpness grade, comformation grade a...

分析结果可作为估计新疆优质细毛羊遗传参数和育种值时，考虑固定效应的依据。

Then we make use of the estimation of the haplotype frequencies 9 to inference haplotypes of each individual .

再由极大似然的原则，分别就不同类型的个体，利用参数的估计？

On the base that has mensurable estimation to hemal three-dimensional motion, extraction gives important athletic parameter, the amplitude that is like athletic way, displacement and athletic contrail.

在对血管的三维运动进行定量估计的基础上，提取出重要的运动参数，如运动方向、位移的幅值和运动轨迹等。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。