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自然地理学和测绘学
A New Federated Deeply Coupled GPS/INS System
<正>Traditional Deeply Integrated(DI) algorithms combines the receiver signal tracking loops and the IMU and the navigation filter function into an integrated filter.In this case,the filter rapidly operates on the receiver-tracking loop I and Q signals which are at a basic level and the IMU measurements to estimate navigation information.In this paper,we propose a federated zero-reset(FZR) method for coherent Deeply Integration,where multiple pre-filters are used(one per satellite) at a relatively high data rate working with the I and Q of the correlator outputs.The outputs from these pre-filters are next used in one composite Kalman Filter operations at a relatively low data rate.Results of software simulations are presented which offers significant tracking performance in Low carrier-to-noise and high g environment.
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2009中国控制与决策会议论文集(1)
2009年

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