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Due to the rapid and continuous increase of network intrusion, the need of protecting our systems becomes more and more compelling. In many situations, there exists a weak anomaly signal detection problem: due to the little number of anomalous system calls, the anomalous patterns of some intrusions may not be enough to distinguish themselves from normal activities so the existing anomaly detection...
The paper describes the design and implementation of a speaker driver applied to Class G/Class I with single phase power supply. Gain expanding and compressing technology are employed in signal processing circuit to optimize power dissipation. Experimental results using 0.18μm N-well CMOS show that it can obtain less than 0.006% THD at low power range and less than 0.4% at medium power range with...
In this paper, by using the nature of Cyclotomic class, presents two new methods for constructing Different Set Pairs. The methods are based on the Cyclotomic class, and different Cyclotomic class could construct Different Set Pairs of Different parameters. New tools for using Different Set Pairs to construct Perfect discrete signal are provided.
The paper presents a fast response signal conditioning method. Signal processing circuit which meets the requirements for Active Power Filter is built. Instead of using the Phase Lock Loop which would be complex and long time-consuming, an improved harmonic current detection method with sine/cosine function is proposed. Simulation results show that, for the same inputs, the improved method has similar...
In the radar system, modelling and simulation can guarantee the high reliability and correctness of system design, shorten designing period and reduce development cost. This paper discusses signal processing system of the SFR (stepped-frequency radar), especially the several key processing steps to get the HRRP (high resolution rang profile). The system simulation has done based on LabVIEW (Laboratory...
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