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Under the condition of low signal to clutter ratio, track-before-detect algorithm (TBD) based on dynamic programming (DP) can detect ground dim SAR moving targets. However, target diffusion and strong clutter in the background may result in high false alarm rate and low detection rate in the accumulation processing of TBD, so this paper proposes the state-weighted DP-TBD. The method utilizes the characteristic...
Capture effect is very common in wireless communication systems. In a passive radio frequency identification (RFID) system, even though multiple tags backscatter their signals to a reader simultaneously, one of the tags will be successfully identified due to the capture effect. In this letter, we propose an algorithm which will optimize the identification efficiency of a dynamic frame length ALOHA...
This paper is concerned with PID controller, which is an extremely important type of controller. However the optimal PID parameters is difficult to determined, their performance are highly sensitive to the initial guess of the solution. An artificial bee colony (ABC) algorithm approach is introduced in PID tuning and on-line tuning as a novel technique for optimum adaptive control in a non-Lyapunov...
This paper is concerned with online synchronization problem for uncertain discrete chaotic systems. An artificial bee colony (ABC) algorithm approach is newly introduced to solve this problem in a non-Lyapunov way. The feedback control factors' resolving is converted to a series of multi-modal nonnegative functions' minimization, whose minimums can be optimally determined by ABC. The classical Henon...
This paper proposes a heuristics assignment algorithm called waveband assignment algorithm to minimize fragment (WA-MF), which tries to fill the new arriving traffic requests by preference into the partly used waveband. The simulation results show that it can reduce the port counts and improve the resource utilization.
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