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Correlation techniques are widely used to locate leaks in buried water pipes. However, a distinct peak in the cross-correlation of two spatially separately collected acoustic signals may result from a non-leak acoustic source outside the pipe. And the peak not related to a real leak will result in a false leak location. So it is necessary to determine whether or not a real leak exists beforehand....
High dimensional chaotic maps have more complicated structures and better anti-jamming performances. Frequency modulated radar signals based on high dimensional chaotic maps are proposed. The signal model is presented, characteristics are analyzed, and comparison among ID Bernoulli map, 2D Cat map and uniform random noise with different series length is made in the paper. Simulations show well performances...
In this paper, the thermal design and electromagnetic capability (EMC) design related to the stability of microwave power module (MPM) was introduced. The high-voltage switch electronic power conditioner (EPC) filter circuit in the MPM was analyzed and designed. The simulation results are presented for filters circuit of the EPC, output filter circuit was established, the test results meet common...
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