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For technology of super-resolution direction finding, in order to avoid effect on the result of Direction of arrival (DOA) when number of signals is estimated by error, a kind of two-dimensional (2-D) DOA estimation algorithm based on projection decomposition is proposed in this paper. First, maximal possible number of signal is assumed, then we use MUSIC algorithm to estimate the primary angles of...
As extracting the intra-pulse features of the signal is an effective method to solve the problem of the complex radar signals sorting and recognition. An algorithm to recognition of radar intrapulse modulation based on fractional Fourier transform(FRFT) was proposed in this paper. First the different modulated signals are processed by fractional Fourier transform with the order p from 0 to 4. The...
The technology of outliers elimination is widely used in many fields, such as environmental monitoring and assessment, space remote sensing, image processing and so on. Kalman filtering algorithm, which is a common method of elimination of outliers, needs harsh conditions and is hard to achieve. After analyzing the Kalman filtering algorithm, according to the basic principles of wavelet transform,...
In this paper, a new recognition method of car is presented. Firstly, it gets the Basic Probability Assignment Function (BPAF) of evidence with fuzzy mathematics method. Then, based on evidence theory, a second-level fusion algorithm is presented, which includes the time domain fusion of single sensor evidence of mutli-measuring period and the space domain fusion of mutli-sensors. Finally, a decision-making...
In this paper, it takes advantage of evidence theory to fuse the data with multi-sensors and multi-measuring periods. It discusses three kinds of fusion structures: concentrated fusion, distributed fusion without feedback and distributed fusion with feedback. In the application of vehicle type distinguishing, through theoretical analysis and simulation results, the paper gets the conclusion that when...
Data association mainly decided whether the data from different sensors stood for the same target in multi-target information fusion. Tradition data association always took the joint probabilistic data association (JPDA) algorithm as the priority means which depend on the state measurement and was complex with long computation time. A PDA algorithm used in the paper based on gray correlation analysis...
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