电子信息与通信工程专业英语 公式

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1、3.1.3所涉及公式(3-1-1)Lineartransformationopenbrace,aMultipliesxsuboneopenparenthesisncloseparenthesisplusbMultipliesxsubtwoopenparenthesisncloseparenthesisclosebraceequalsamultipliesysuboneopenparenthesisncloseparenthesisplusbmultipliesysubtwoopenparenthesisncloseparenthesis.where

2、,andandareanyscalarconstants.(3-1-2)Lineartransformationopenbrace,xopenparenthesisnminusnsubzerocloseparenthesisclosebraceequalsyopenparenthesisnminusnsubzerocloseparenthesis.(3-1-3)yopenparenthesisncloseparenthesisequalscapitalsigmathequantityxopenparenthesiskcloseparenthesis

3、hopenparenthesisnminuskcloseparenthesisfromkapproachesnegativeinfinitytokapproachespositiveinfinity,equalsxopenparenthesisncloseparenthesisconvolutionsumhopenparenthesisncloseparenthesis.(3-1-4)xopenparenthesisncloseparenthesisconvolutionsumyopenparenthesisncloseparenthesisequ

4、alsyopenparenthesisncloseparenthesisconvolutionsumxopenparenthesisncloseparenthesis.(3-1-5)Openbracketxopenparenthesisncloseparenthesisconvolutionsumyopenparenthesisncloseparenthesisclosebracketconvolutionsumwopenparenthesisncloseparenthesisequalsxopenparenthesisncloseparenthe

5、sisconvolutionsumopenbracketyopenparenthesisncloseparenthesisconvolutionsumwopenparenthesisncloseparenthesisclosebracket.(3-1-6)xopenparenthesisncloseparenthesisconvolutionsumopenbracketyopenparenthesisncloseparenthesispluswopenparenthesisncloseparenthesisclosebracketequalsxop

6、enparenthesisncloseparenthesisconvolutionsumyopenparenthesisncloseparenthesisplusxopenparenthesisncloseparenthesisconvolutionsumwopenparenthesisncloseparenthesis.(3-1-7)Capitalsigmathequantityoftheabsolutevalueofhopenparenthesisncloseparenthesisfromnapproachesnegativeinfinityt

7、onapproachespositiveinfinityislessthaninfinity.for(3-1-8)hopenparenthesisncloseparenthesisequalszerofornislessthanzero.3.2.3所涉及公式(3-2-1)Thesignalequalscapitalsigmathesignaltimestothepowerofminusjtimesomegatimesfromequalsminusinfinitytoequalsplusinfinity.(3-2-2)Thesignalequalso

8、neover2timespitimestheintegralfromminuspitopiofthesignaltimes