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检索条件"主题词=Relative Positioning"

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An Adaptive Networking Solution Strategy Based on Real-time relative positioning of Linkage Targets

An Adaptive Networking Solution Strategy Based on Real-time ...

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第十三届中国卫星导航年会

作者： Cunting Chen Dangwei Wang Dongdong An Qi Zhang Xi’an Unistrong Defense Technology Co. Ltd.

Aiming at the problem of unstable formation status due to communication delays or other factors during the operation of multiple moving target formations. This paper proposes an adaptive network solution strategy based on realtime relative positioning of linked targets. The target role is dynamically generated through the formation autonomous space state confirmation technology, and the corresponding tasks are performed. The formation’s anti-destroy ability is improved. At the same time, the time baseline processing scheme is adopted., To ensure that the system can not only work normally when the data is delayed and temporarily interrupted, but also can ensure the accuracy of the benchmark. Finally, dynamic experiments show that the adaptive network solution strategy based on real-time relative positioning of linked targets is reliable and effective in practical applications, and can reach centimeter-level positioning accuracy.

关键词： Linkage target relative positioning autonomous space state of formation time baseline

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Algorithmic Research and Realization of GPS/COMPASS Combined relative positioning

Algorithmic Research and Realization of GPS/COMPASS Combined...

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第三届中国卫星导航学术年会

作者： Benyin Yuan, Zhixiong Bao Guangzhou Hi-Target Navigation Tech Co.Ltd, Guangzhou, China

According to the difference of carrier phase frequency between GPS and COMPASS, The algorithmic of ambiguity resolution in GPS/COMPASS combined relative positioning is discussed in the paper. The algorithmic is realized in HGO software developed by Hi-Target Company and actual data is processed for testing. Results prove the correctness and feasibility of both the combined relative positioning theory and the data processing software.

关键词： GPS COMPASS combined relative positioning ambiguity

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Estimate Tropospheric Wet Path Delays with Stochastic Process in relative positioning

Estimate Tropospheric Wet Path Delays with Stochastic Proces...

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第三届中国卫星导航学术年会

作者： Lei WANG, Jiming GUO, Lili SHENSchool of Geodesy and Geomatics, Wuhan University, 129 Luoyu Road, Wuhan,China

Tropospheric path delay would be one of main error source in medium and long distance baseline processing. Due to complexity of Troposphere variation, it is very hard to model the troposphere delay;the most commonly used method is estimate tropospheric path delay residuals of correction model during data processing. In this paper, Kalman filter was used in relative positioning;meanwhile, troposphere wet path delay residuals were estimated with stochastic process method. The influence of different pre-fit constraint on troposphere delay estimation was discussed;impact of troposphere wet delay residuals on relative positioning was also presented.

关键词： relative positioning Tropospheric Delay Estimation Stochastic Process Kalman Filter

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