Underwater Navigation using Pseudolite

Defence Science Journal

Krishneshwar Tiwary²  G. Sharada¹  Amarjit Singh¹ 

[1] Scientist

关键词: pseudolite;    navigation;    underwater communication;    underwater navigation;    pseudo satellite;   

DOI  :  

学科分类：社会科学、人文和艺术（综合）

来源: Defence Scientific Information & Documentation Centre

【 摘 要 】

Using pseudolite or pseudo satellite, a proven technology for ground and space applications for the augmentation of GPS, is proposed for underwater navigation. Global positioning systems (GPS) like positioning for underwater system, needs minimum of four pseudolite-ranging signals for pseudo-range and accumulated delta range measurements. Using four such measurements and using the models of underwater attenuation and delays, the navigation solution can be found. However, for application where the one-way ranging does not give good accuracy, alternative algorithms based upon the bi-directional and self-difference ranging is proposed using selfcalibrated pseudolite array algorithm. The hardware configuration is proposed for pseudolite transceiver for making the self-calibrated array. The pseudolite array, fixed or moored under the sea, can give position fixing similar to GPS for underwater applications. Defence Science Journal, 2011, 61(4), pp.331-336 , DOI:http://dx.doi.org/10.14429/dsj.61.1087

【 授权许可】

Unknown