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This paper proposes an efficient and simple architecture for 9/7 discrete wavelet transform based on distributed arithmetic. To derive new proposed architecture, we consider the periodicity and symmetry of DWT to optimize the performance and reduce the computational redundancy. The inner product of coefficient matrix of DWT is distributed over the input by(More)
The difficulty of active hearing protection system is to mask the dangerous noise energy and retain the useful signal at the same time. Binary mask, which was an effective method to be used in speech segregation, was proposed to micro active hearing protection system. A new gammatone filterbank approximation with less resource requirement was proposed to(More)
Automatic programming is not only one of the central goals of computer science, but also the goal computer science workers are striving for. Some science workers have been exploring and researching in this field for a long time. Significant advances have been made on evolving computer theory, especially on Genetic Programming (for short G.P.) theory and(More)
  • Qingchun Wang
  • 2008
The possibility of using Evolvable Hardware (EHW) for scheduling real-time traffic in Asynchronous Transfer Mode (ATM) networks have studied in this paper. EHW is hardware built on programmable logic devices and whose architecture can be reconfigured by using genetic learning to adapt to new environments. A novel design is the function-level EHW based on(More)
A fuzzy direct adaptive control strategy is proposed for the trajectory tracking control of robotic manipulators. Different to the traditional fuzzy adaptive control method, a generalized hyperbolic model is used to be the fuzzy basis function. The input generalized variables of the fuzzy logic system, derived from the input variables after their(More)
Species pool hypothesis is broadly known and frequently tested in various regions and vegetation types. However it has not been tested in the arid Xinjiang region of China due to lack of data. Here with systematic data from references and field survey, we comprehensively examined species pool hypothesis in this region. Took species richness in 0.1° × 0.1°(More)
Forest pests and diseases is very important to forest because it not only restricts the development of forest, but also causes huge economic. Chemical pesticides control the pests and diseases effectively and pollute environment seriously. How to reduce the amount of pesticide is the research hotspot in the field of plant protection. Forest plant protection(More)
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