首页>
外国专利>
ROM-Based complex multiplier useful for FFT butterfly arithmetic unit
ROM-Based complex multiplier useful for FFT butterfly arithmetic unit
展开▼
机译:基于ROM的复数乘法器可用于FFT蝶形运算单元
展开▼
页面导航
摘要
著录项
相似文献
摘要
A four-port digital complex multiplier useful for FFT butterfly arithmetic units and in which ROM's are employed as square function look- up tables. Each of the four ports is responsive to a respective one of the component values of two complex numbers. The square- function look-up memories are responsive to various ones of the input ports and cooperate with quarter-square- multipliers to provide component complex products. An output subtractor and an output summer, responsive to mutually exclusive pairs of the quarter-square multipliers, provide a respective real and imaginary component of the product of the two complex numbers.
展开▼