| 1. | Precision - calculated methods and its precision estimation for area within the red line
征地红线面积的精密计算方法与精度分析 |
| 2. | Theoretical computation in the precision estimation of the change in gravity and displacements due to atmospheric loading
大气负荷引起的重力与位移变化理论计算的精度估计 |
| 3. | Resulting from researches and experience accumulated in mbss practice for years , the author suggested a precision estimation model of depth and position for the acceptance of mbss systems , and presented further a stochastic model of double observation for data quality estimation . these models could be introduced to the designed national mbss acceptance standards
本文根据国际海道测量标准提出了多波束测深系统的水深和位置精度的评估模型，并提出了一种双观测法统计模型对测量数据的质量进行评估，其研究成果可以为建立我国多波束测深规范提供参考。 |
| 4. | In these two experiments , it includes test scheme . outer precision estimation , inner precision estimation . the data collecting is in accordance with ii order leveling measuring and ii order distance network . these two experiments test the reasonable of datum consistency and the method of mean gap building deformation model
该实验验证了对于基准问题的分析和平均间隙法对位移量的探测情况；在水平位移变形监测网的实验中，数据采集按二等测边网测量精度进行，证实了用平均间隙法判断稳定点，进而确定变形模型的合理性。 |
| 5. | In the aspect of detection and high precision estimation of seafloor backscattering , algorithms of fast convergence of energy center and correlation of eigen - replica were developed . also studded were processing methods of weighted mean time ( wmt ) and bearing direction indicator ( bdi ) based on fft beam forming as well as high precision detection and estimation of time of arrival ( toa ) and direction of arrival ( doa ) using split beams phase difference detection technique
围绕海底反向散射信号的高精度检测和估计技术，开发了快速能量中心收敛算法和特征模型相关算法，研究了基于fft波束形成的加权时间平均与方位指示处理方法，并讨论了利用分离波束相位差检测技术的海底反向散射信号到达时间( toa )和到达方向( doa )的高精度检测与估计方法。 |
| 6. | In this case , time domain equalization algorithm based on channel estimation will influence equalization effect if choosing noise sensitive algorithm to estimate channel , so it is necessary to adopt an anti - noise and high estimation precision estimation algorithm . in this dissertation , a new time domain equalization algorithm based on low rank hankel approximati
Dsl线路实际工作环境存在各种干扰，尤其当多用户时，串音干扰很严重，对于采用基于信道估计的时域均衡算法，如果使用对噪声敏感的算法进行信道估计，必然影响均衡效果，因此需要采用具有抗噪声，估计精度高 |
