← 返回 JSSC 论文列表JSSC 2008第11期Digital Circuits0.25μm
A 430 MHz 280 mW Processor for the Conversion of Cartesian to Polar Coordinates
提出一种新型直角坐标转极坐标处理器架构，采用对数系统计算相位，无需乘法运算。
0.25μm CMOS, 430MHz, 0.64mW/MHz
专用集成电路CMOS集成电路坐标转换数字通信低功耗设计
▸采用对数数系统进行相位计算，避免乘法运算
▸使用改进型双通道晶体管(DPL)全加器单元提升性能
▸结合查找表和常数乘法器计算模数
Abstract
llo , Senior Member , IEEE, Davide De Caro , Member , IEEE, and
Nicola Petra, Member , IEEE
Abstract—A novel architecture to realize the conversion of
rectangular to polar coordinates is presented in this paper. The
proposed technique for phase calculation uses a logarithmic
number system and does not require any multiplications, but
only a few small tables and a few multi-operand additions. The
modulus is computed by a constant multiplier, a lookup table, and
a full multiplier. A test chip has