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Based on the analysis of GPS deception jamming theory, this paper considers the control feathers of the UAV GPS/INS integrated navigation system and designs an innovation detection rule for the UAV navigation system state estimation. Methods of direct track deception and track fusion are used to achieve the intrusive control of the navigation system and the control of the UAV's trajectory through...
With the development of information technology, the accelerometer has been applied widely, such as navigation, target tracking, medical, consumer electronics. The signal, collected by accelerometer, is usually affected by the noisy signal. Before processing, the signal needs to be filtered. This article describes several filtering algorithm, commonly used in the acceleration data processing. Then,...
This paper puts forward an echo cancellation method based on PN sequence for the problem of echo cancellation effect caused by channel estimation accuracy. The mechanism of the PN sequence in the echo cancellation is analyzed. After theoretical analysis and simulation, it shows that this method can effectively eliminate the echo interference and improve signal quality of communication.
Recently, a two-tier hierarchical wireless sensor network (WSN) was proposed to address the problem of multi-target tracking (MTT). The WSN estimated the multi-target states well, but kept no record of target identities. In this paper, the performance of the WSN is improved by activating certain sensors instead of all the sensors in the first level of the hierarchy at each time step. Furthermore,...
In this paper, a two-tier hierarchical architecture is proposed to address the multi-target tracking problem using a particle probability hypothesis density filtering algorithm. According to a proposed cluster scheduling method, the base station selects active clusters at each time step and determines their order for the sequential data fusion in the second level of hierarchy. Within each active cluster,...
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