Efficient and Accurate CORDIC Pipelined Architecture Chip Design Based on Binomial Approximation for Biped Robot

Recently, much research has focused on the design of biped robots with stable and smooth walking ability, identical to human beings, thus, in coming years, will accomplish rescue or exploration tasks challenging environments. To achieve this goal, one important problems is a chip for real-time calculation moving length rotation angle robot. This paper presents an efficient accurate coordinate digital computer (CORDIC)-based calculate each step In previous work, hardware cost CORDIC-based algorithm was primarily limited by scale-factor architecture. solve problem, binomial approximation carefully employed computing scale-factor. doing so, architecture can similar accuracy but fewer iterations, thus reducing cost. Hence, incorporating approximation, pipelined architecture, sharing machines, proposes novel using iterative pipelining robots. design, only low-complexity shift add operators were used realizing achieving computation lengths angles Compared current designs, work reduced 7.2%, decreased average errors 94.5%, improved executing performance 31.5%, when ten