A variable-radix digit-serial design methodology and its application to the discrete cosine transform

M.P. Leong, P.H.W. Leong
2003 IEEE Transactions on Very Large Scale Integration (vlsi) Systems  
A variable-radix digit-serial design methodology and its application to the implementation of a systolic structure for computing the discrete cosine transform is presented. Based on the parameters supplied by a user, different fixed-point designs can be derived from a single floating-point description where tradeoffs among quantization effects, throughput, latency, and area can be addressed. The resulting hardware implementations have variables of different wordlengths and operators of
more » ... radices. This design methodology enables efficient exploration of a complex design space to determine the most suitable implementation for a particular application. Index Terms-Design automation, design methodology, discrete cosine transforms, field-programmable gate arrays (FPGAs), fixed-point arithmetic.
doi:10.1109/tvlsi.2003.811099 fatcat:eijs7cpavre2phgorxkcl7c4vy