- 3 6 2 The Distortion Caused By Multipath Transmission Can Be Partly Corrected By A Tapped Delay Equalizer Show That If 1 (58.57 KiB) Viewed 37 times
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3.6-2 The distortion caused by multipath transmission can be partly corrected by a tapped delay equalizer. Show that if a < 1, the distortion in the multipath system in Fig. 3.35a can be approximately corrected if the received signal in Fig. 3.35a is passed through the tapped delay equalizer shown in Fig. P3.6-2. Hint: From Eq. (3.64a), it is clear that the equalizer filter transfer function should be Heq(f) = 1/(1+ae-j21f At). Use the fact that 1/(1 – x)=1+x+x2 + x3 + ... if x < 1 to show what the tap parameters a; should be to make the resulting transfer function H(f)Heq(f) ze-j2afta Input At At At ΔΙ do di 02 an-1 an Σ Output