English translation for "sitan"

印度被单布

Related Translations:

chen sitan:  陈思坦

Example Sentences:

	1.	In this paper , the main research works are as follows : 1 ) survey and analysis previous work in auv navigation and summarize : as the cumulate error , the dead - reckoning and inertial navigation systems ca n ' t be used without other modified system ; the acoustic navigation system is used only in small range , and is very expensive . 2 ) two important approaches in geophysical navigation techniques are summarized , one is terrain contour based navigation , this approach is investigated keystone today ; the other is image based navigation , due to no perfect image sensors and image seabed map , this approach has seldom been practised . 3 ) two important terrain contour based navigation algorithms has been applied to auv , one is match algorithm - based terrain contour match ( tercom ) ; the other is kalman filter - based sandia inertia terrain - aided navigation ( sitan ) 主要研究内容包括：一、总结分析了当前水下导航的常用方法和不足之处，指出基于航位推算的导航方法，存在着最大的问题就是导航误差的积累问题，如果没有修正系统，这种方法很难满足使用要求；其次指出基于声学的导航方法，造价昂贵，导航范围有限，难以满足自主水下航行器大范围导航的需求；二、总结了当前水下地形辅助导航的主要技术路线，一是基于地形高程的匹配方法，这是当前研究的重点；二是基于地形图像的匹配方法，由于缺乏良好的图像传感器，和可用的海底图像地图，目前这种方法还有待研究发展；三、将两种地形高程匹配的常用方法应用到自主水下航行器上：以相关算法为前提的地形轮廓匹配( tercom )方法和以卡尔曼滤波为基础的桑迪亚惯性地形辅助导航( sitan )方法，前者算法简单可靠，但是导航精度不高，后者虽然精度比较高，但存在着算法较为复杂、有可能发散和出现奇异值等问题。
	2.	The first algorithm is low precise but simple and credible , the second is high precise but complex and incredible . 4 ) developed four kinds of methods aimed to improve precision and credibility of navigation system . the first is parallel sandia inertia terrain - aided navigation ( psitan ) ; the second is tercom + sitan , it can restrain two important disadvantages of sitan ; the third is particle filter - based terrain - aided navigation ( pftan ) , the particle filter can reduce the error of navigation ; the last is tercom + pftan , where tercom is looked as monitor to ensure the credibility of navigation system 采用并行sitan方法来提高导航精度，并克服奇异值问题；提出了tercom + sitan方法，综合利用两者的优点，在保持sitan导航精度的前提下，有效地克服了sitan的两个缺点；提出了一种基于连续蒙特卡洛滤波(常被称为particlefilter )的地形匹配算法( pftan ) ，有效地克服了利用sitan时由于地形随机线性化带来的误差，使导航精度有较大的提高；提出了tercom作为监视器的地形辅助导航思想，并将其应用到连续蒙特卡洛方法上，较大地增加了系统的可靠性和精度。

Similar Words：

"sitalpur" English translation, "sitamarhi" English translation, "sitamarici the spirit with cool rays" English translation, "sitamau" English translation, "sitampiky" English translation, "sitanc" English translation, "sitancova" English translation, "sitang" English translation, "sitaniec" English translation, "sitankai" English translation