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Multichannel active noise control (MCANC) systems are commonly used in acoustic noise or vibration control, such as large-dimension ventilation ducts, open windows and mechanical structures. However, its computational load far exceeds the capabilities of digital signal processors (DSPs) and microcontrollers. Even the field programmable gate array (FPGA) cannot straightforwardly cope with the exponential...
This paper presents an efficient decomposition scheme for hardware-efficient realization of discrete cosine transform (DCT) based on distributed arithmetic. We have proposed an efficient design for the implementation of cyclic convolution based on a group distributed arithmetic (GDA) technique where the read-only memory size could be reduced over the existing GDA-based design. The proposed structure...
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