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A novel Huber M-estimator based proportionate affine projection algorithm (APA) is proposed for echo cancellation. The Huber objective function is minimised as the cost function and results in Huber M-estimator based APA. Moreover, the cutoff value of Huber objective function is updated according to the correlation between the error signal and the far-end input signal. It is shown that the proposed...
Auxiliary noise, which is used for online secondary path modeling (OSPM), contributes to the residual noise and consequently reduces the performance of active noise control (ANC) systems. This paper introduces two novel schemes for robust auxiliary noise power scheduling for OSPM. First, two robust adaptive thresholds are proposed to control the injection of auxiliary noise. The auxiliary noise is...
Using time-synchronized phasor measurements, the closed-loop identification of power system based on ambient signals is discussed, which could reflect the current operating characteristic of power system accurately and timely, and could solve the adaptability difficulties in the regulator design. In this paper, ambient signals based closed-loop identification of power system with multiple small amplitude...
Recently, international construction claim plays an important role in the management of the construction contract. In this paper, aiming at the drawbacks of traditional BP arithmetic, an improved BP neural network is introduced based on the LM arithmetic so as to accelerate the convergence speed. A forecast model of nonlinear system is set up based on the LMBP neural network by studying all of the...
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