查询词典 ground noise

The results show that using the new algorithm, veracity of arriving time for sky-wave and ground-wave can get up to 99.6% and no less than 98.6% respectively,and signal to noise ratio can be improved 6dB relative to the standard of USCG.

结果表明，利用该算法，天地波自动识别的准确率分别可达99.6%和98.6%以上，相对USCG标准可改善信噪比6dB。

And this paper also presents the klo-RANSAC technique,to extract rotational surface from the noise and the back ground data,which improves the performance and robustness greatly.

算法使用基于特征约束的klo-RANSAC（k-local-RANSAC）算法将特征点从自由曲面背景以及噪声中提取和分离，进一步提高了算法的收敛速度与健壮性。

And Pharaoh spoke to Joseph, saying, Your father and your brothers have come to you.

47：5 法老对约瑟说，你父亲和你弟兄们到你这里来了。

Additionally, the approximate flattening of surface strip using lines linking midpoints on perpendicular lines between geodesic curves and the unconditional extreme value method are discussed.

提出了用测地线方程、曲面上两点间短程线来计算膜结构曲面测地线的方法，同时，采用测地线间垂线的中点连线和用无约束极值法进行空间条状曲面近似展开的分析。