The Vlsi Implementation of 1d-dwt Based on Gals Systems
نویسندگان
چکیده
In this paper, we propose a VLSI implementation method for one-dimensional discrete wavelet transform (1D-DWT) based on the GALS systems approach. An asynchronous wrapper, which includes two data communication ports and a local clock controller, is designed for the asynchronous data communication between the locally synchronous filtering modules in the wavelet filter bank. The detailed design methodology for the GALS architecture of 1D DWT is given and the circuits are validated with VHDL and circuits simulation in standard CMOS technology.
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