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Bifrequency representation of modulation filters

Bifrequency representation of modulation filters

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© The Institution of Electrical Engineers
Published

A simple graphical interpretation of modulation filters is described by considering the spectral implications of the bifrequency system function using two orthogonal frequency axes. The effect of time-division multiplexing a number of identical transmission paths is considered and demonstrated.

Inspec keywords: filters; time-varying networks; time division multiplexing

Other keywords: bifrequency system function; bifrequency representation; time varying networks; time division multiplexing; modulation filters; graphical interpretation

Subjects: Filters and other networks; Time varying and switched networks

References

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      • A.G. Constantinides . Spectral transformation for digital filters. Proc. IEE , 8 , 1585 - 1590
    2. 2)
      • L.E. Franks , I.W. Sandberg . An alternative approach to the realisation of network transfer functions: the N-path filter. Bell Syst. Tech. J. , 1321 - 1350
    3. 3)
      • G.P. Edwards . Variable-bandwidth filters using switching. Electron. Lett. , 12 - 13
    4. 4)
      • L.A. Zadeh . Frequency analysis of variable networks. Proc. IRE , 291 - 299
    5. 5)
      • Y. Sun , I.T. Frisch . A general theory of commutated networks. IEEE Trans. , 502 - 508
    6. 6)
      • W. Saraga . New class of time-varying filters. Electron. Lett. , 158 - 160
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