Technique of Two Searches on SITAN Algorithm for Seabed Terrain-Aided Navigation

YU Jia-cheng; YAN Lei; DENG Wei; CHEN Jia-bin

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Technique of Two Searches on SITAN Algorithm for Seabed Terrain-Aided Navigation

更新时间：2025-07-16

- Technique of Two Searches on SITAN Algorithm for Seabed Terrain-Aided Navigation
- Acta Electronica Sinica Vol. 35, Issue 3, Pages: 474-477(2007)
- 作者机构：
  
  1. 北京大学空间信息集成与3S工程应用北京市重点实验室,北京,100871
  2. 北京理工大学信息科学技术学院自动控制系,北京,100081
  3. 北京大学空间信息集成与3S工程应用北京市重点实验室北京,100871
  4. 北京理工大学信息科学技术学院自动控制系北京,100081
- 作者简介：
- 基金信息：
- DOI：
  CLC： U666.12
- Published：2007
- 稿件说明：
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YU Jia-cheng, YAN Lei, DENG Wei, et al. Technique of Two Searches on SITAN Algorithm for Seabed Terrain-Aided Navigation[J]. Acta Electronica Sinica, 2007, 35(3): 474-477.
DOI：

YU Jia-cheng, YAN Lei, DENG Wei, et al. Technique of Two Searches on SITAN Algorithm for Seabed Terrain-Aided Navigation[J]. Acta Electronica Sinica, 2007, 35(3): 474-477. DOI：

摘要

在建立搜索模型和跟踪模型的基础上

提出了二次搜索加一次跟踪的地形辅助导航技术

通过在不同搜索阶段的卡尔曼滤波器分别满足留数指标和地形坡度指标获得最佳匹配位置

对传统的SITAN算法进行了改进.计算机仿真结果表明

改进的SITAN算法在理论上更加合理有效

定位精度更能够满足要求.

Abstract

A Technique of two searches and one track for seabed Terrain-aided navigation is put forward with search model and track one.Optimal matching position is obtained through Kalman filtering according to residual index and terrain- slope respectively in different stage.Simulation results show that modified SITAN algorithm is more reasonable and effective in theory than before one.Meanwhile

the positioning accuracy is greatly improved.

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