关键词零阶保持器;互相关;冲激响应中图分类号TP13,TP202,TP274AZero-Order-HoldBasedDiscrete-timeImpulseResponseModelintheCross-correlationTechniqueLUOJieQUAnlian(CollegeofLifeScienceandTechnology,HuazhongUniversityofScienceandTechnology,Wuhan430074)AbstractThecross-correlationtechniquecanbeusedtoestimatetheimpulse...