document: A unified view for vector rotational CORDIC algorithms and architectures based on angle quantization approach Vector rotation is the key operation employed extensively in many digital signal processing applications . In this paper , we introduce a new design concept called Angle Quantization -LRB- AQ -RRB- . It can be used as a design index for vector rotational operation , where the rotational angle is known in advance . Based on the AQ process , we establish a unified design framework for cost-effective low-latency rotational algorithms and architectures . Several existing works , such as conventional COordinate Rotational Digital Computer -LRB- CORDIC -RRB- , AR-CORDIC , MVR-CORDIC , and EEAS-based CORDIC , can be fitted into the design framework , forming a Vector Rotational CORDIC Family . Moreover , we address four searching algorithms to solve the optimization problem encountered in the proposed vector rotational CORDIC family . The corresponding scaling operations of the CORDIC family are also discussed . Based on the new design framework , we can realize high-speed/low-complexity rotational VLSI circuits , whereas without degrading the precision performance in fixed-point implementations
doc_bio_tags: O O O O B I I I O O O O B I O O O O O O O O O O O B I I I O O O O O O O O O O O O B I O O O O O O O O O O B I O B I I O O O O O O O O O O O O O O O O O O O B I I O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O B I O O O B I O O O O O O O O O O O B I O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O
extractive_keyphrases: vector rotational cordic algorithms digital signal processing applications angle quantization design index vector rotational operation unified design framework searching algorithms optimization problem scaling operations
abstractive_keyphrases: dsp applications low-latency rotational algorithms greedy searching algorithm low-latency rotational architectures high-speed rotational vlsi circuits low-complexity rotational vlsi circuits fixed-point implementations trellis-based searching algorithm