表达式10: "p" Subscript, 2 , Baseline left parenthesis, "t" , right parenthesis equals Start sum from "n" equals 1 to "L" , end sum, "A" Subscript, "m" , Baseline times StartFraction, sin left parenthesis, "p" "t" "n" , right parenthesis Over "n" , EndFraction left brace, "t" greater than or equal to 0 , right bracep2t=L∑n=1Am·sinptnnt≥0
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Square Waveform
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表达式12: "p" Subscript, 3 , Baseline left parenthesis, "t" , right parenthesis equals Start sum from "n" equals 1 to "L" , end sum, "A" Subscript, "m" , Baseline times StartFraction, sin left parenthesis, "p" "t" left parenthesis, 2 "n" minus 1 , right parenthesis , right parenthesis Over left parenthesis, 2 "n" minus 1 , right parenthesis , EndFraction left brace, "t" greater than or equal to 0 , right bracep3t=L∑n=1Am·sinpt2n−12n−1t≥0
表达式16: "m" left parenthesis, "t" , right parenthesis equals "k" Subscript, "p" , Baseline times left parenthesis, "p" Subscript, 1 , Baseline left parenthesis, "t" , right parenthesis times "o" Subscript, 1 , Baseline plus "p" Subscript, 2 , Baseline left parenthesis, "t" , right parenthesis times "o" Subscript, 2 , Baseline plus "p" Subscript, 3 , Baseline left parenthesis, "t" , right parenthesis times "o" Subscript, 3 , Baseline , right parenthesismt=kp·p1t·o1+p2t·o2+p3t·o3
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表达式17: "c" left parenthesis, "t" , right parenthesis equals cosine left parenthesis, 2 times pi times "f" Subscript, "c" , Baseline times "t" plus "m" left parenthesis, "t" , right parenthesis , right parenthesisct=cos2·π·fc·t+mt
