Method and devices for translation along the axis of frequencies

Details Method and devices for translation along the axis of frequencies Method and devices for translation along the axis of frequencies

1989-03-20

1990-10-23

Tarcza, Thomas H.

Communications: directive radio wave systems and devices (e.g.,

Clutter elimination

342160, 342162, 342203, 342195, G01S 1353, G01S 1352

Patent

active

049655841

ABSTRACT:
The invention relates to a method for frequency-shifting the modulus of the transfer function of a transversal filter.
In a transversal filter having three delay lines Z1, Z2 and Z3 in series and four multipliers M'0 to M'3, the multiplier coefficients K0 to K3 of which are intended to eliminate the signals at frequencies in the vicinity of zero frequency and integral multiples of the repetition frequency Fr of the samples X.sub.i, the method consists in replacing the multiplier coefficients K0 to K3 by coefficients K'0 to K'3 which are deduced from the first by multiplying them by fixed coefficients

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