首页>
外国专利>
REDUCED COMPLEXITY FAST HADAMARD TRANSFORM AND FIND-MAXIMUM MECHANISM ASSOCIATED THEREWITH
REDUCED COMPLEXITY FAST HADAMARD TRANSFORM AND FIND-MAXIMUM MECHANISM ASSOCIATED THEREWITH
展开▼
机译:减少的复杂性快速哈达玛德变换及其相关的最大发现机制
展开▼
页面导航
摘要
著录项
相似文献
摘要
A method and apparatus for performing a radix-4 fast Hadamard transform (FHT) with reduced complexity that utilizes only seven operations and for directly determining the maximum output of a fast Hadamard transform using either a radix-4 transform or radix-2 transform without actually generating the outputs. To find the maximum value of the output of a fast Hadamard transform and its corresponding index, the N-1 stages of a conventional N stage fast Hadamard transform are computed while a find-maximum stage is inserted in place of the Nth stage. The invention also provides a methodology for constructing fast Hadamard transforms of the form H2N using radix-4 FHTs and permuting the results to achieve the correct outputs.
展开▼