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Speech is one of the best natural and convenient intercommunication manners among humankind. Nowadays, speech processing technologies have been broadly used in many applied fields. In this paper, the main research focus is on the study of speech enhancement and separation, which is one of the key technologies when we try to put the speech processing into reality. Firstly, we introduce speech single...
In this paper, we analyze a class of actor-critic algorithms under partially observable Markov decision process (POMDP) environment. Specifically, in this work we focus on the two-time-scale framework in which the critic uses a temporal difference with neural network (NN) as nonlinear function approximator, and the actor is updated using greedy algorithm with the stochastic gradient approach. Instead...
Influenced by detector materials' non-uniformity, growth and etching techniques' etc, every detector's responsivity of infrared focal plane arrays (IRFPA) is different, which results in non-uniformity of IRFPA. And non-uniformity of IRFPA generates fixed pattern noises (FPN) that are superposed on infrared images. So the quality of infrared images is poor, which greatly limited the application of...
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