【摘 要】
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Improving the dynamic performance and signal acquisition performance of BDS receiver aided by INS is the hot spot of the current navigation research.Through the comparison between fundamentals of trad
【机 构】
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Department of Control Engineer,Academy of Armored Force Engineering,Beijing 100072,China
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Improving the dynamic performance and signal acquisition performance of BDS receiver aided by INS is the hot spot of the current navigation research.Through the comparison between fundamentals of traditional acquisition algorithm and the acquisition algorithm aided by INS,this paper analyzes the effect of INS velocity errors on doppler errors of BDS receiver.By simulating the carrier trajectory in high dynamic state and assisting the acquisition of BDS by INS in different accuracy grades,the accuracy grades suiting the needs will be chosen according to the results of acquisition performance.The experiment results illustrate that the signal acquisition sensibility of INS-aided BDS receiver is improved and the selected equipment has a very high cost performance.Besides,according to specific application conditions,inertial sensors in different accuracy grades are needed to be chosen.The results can serve as good instruction for the choice of integrated navigation sensors and models.
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