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Improving the dynamic performances of BDS receiver with INS-aided is the hotspot of the current navigation research, and the key problem is how to improve the performance of signal acquisition. This paper has some research and analyses about the theory and mathematic model of signal acquisition. Though the simulation of vehicle trajectory, the author acquired the results of signal acquisition performance of BDS receiver with the aid of INS composing of 10 deg/h bias drift gyros and 100 ug bias drift accelerometer. The experiment results illustrate that the average signal acquisition time of BDS receiver with the low accuracy INS aided is shortened greatly, the searching scope of Doppler frequency shift and code phase are narrowed, thus the signal acquisition performance of BDS receiver is improved. This research can serve as good instruction for the development of integrated navigation. Keywords-BDS; signal acquisition; INS-aided; performance analysis

Simulation and Analysis on Signal Acquisition of BDS Receiver with The Aid of INS