Transport processor filter

Details Transport processor filter Transport processor filter

1989-04-24

1991-03-19

Laroche, Eugene R.

Wave transmission lines and networks

Coupling networks

Time domain filters

333165, 350311, H03H 730

Patent

active

050014455

ABSTRACT:
A new structure for electro-magnetic signal filters is described. The structure of the invention incorporates ideal time lag elements having delay values selected to match an arbitrarily selected set of frequencies matched to a desired frequency response and connected in a cascade array by second filter elements which null the frequency filtered by the preceding array, the output of which is summed to provide a composite output with the desired frequency response. The resultant filters are easily implemented in conventional hardware and the techniques may be applied to a broad range of the electro-magnetic spectrum by the choice of appropriate components.

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patent: 3594795 (1971-07-01), Thor et al.
patent: 3691486 (1972-09-01), Borsuk et al.
patent: 4293831 (1981-10-01), Lueder
patent: 4541068 (1985-09-01), Tower
Roy et al., "Design of MTI Detection Filters . . . Periods", IEEE Trans. on Circuit Theory, vol. CT-17, No. 4, Nov. 1970, pp. 604-612.
Robinson et al. "Principles of Digital Filtering", Geophysics, vol. XXIX, NO. 3, Jun. 1964, pp. 395-404.
Liu, "Effect of Finite Word . . . of Digital Filters-a Review", IEEE Trans. on Circuit Theory, vol. CT-18, No. 6, Nov. 1971, pp. 670-677.
Agrawal, "An Algorithm . . . Square Filters", IEEE Transactions on Acoustics, Speech and Signal Processing, vol. ASSP-25, No. 5, Oct. 1977, pp. 410-414.
Urkowitz, "Analysis and Synthesis of Delay Line Periodic Filters", The Transactions on Circuit Theory, No. 2, Jun. 1957, pp. 41-53.

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