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SSB-SC Sideband Filter Method

SSB-SC Sideband Filter Method. cos(( w c - w IF )t). Carrier Filter. USB Filter. LSB Filter. x. x. a(t). e(t). (SSB). cos( w IF t). w c - 2 w IF. w c. w IF. w c - w IF. Minimum Transmitted Bandwidth Zero Carrier Power

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SSB-SC Sideband Filter Method

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  1. SSB-SC Sideband Filter Method cos((wc - wIF)t) Carrier Filter USB Filter LSB Filter x x a(t) e(t) (SSB) cos(wIFt) wc - 2wIF wc wIF wc - wIF • Minimum Transmitted Bandwidth • Zero Carrier Power • IF and Carrier oscillators must be phase/frequency locked in both transmitter and receiver

  2. SSB-SC Phase Method cos(wIFt) x x a(t) cos(wct) + e(t) (SSB) cos(wIFt) 90o Delay (1/4fIF) I-Q Oscillator sin(wct) - + x -sin(wIFt) wIF wc + wIF

  3. Legacy Telephone Trunk System

  4. SSB Receiver

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