Method of processing the sum and difference signals of a radar o

Details Method of processing the sum and difference signals of a radar o Method of processing the sum and difference signals of a radar o

1987-02-24

1987-12-15

Tubbesing, T. H.

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

Determining direction

Monopulse

342194, 342188, G01S 1344

Patent

active

047136669

ABSTRACT:
The method of the invention, applied for example to estimating the parasite phase .phi..sub.a between the azimuth sum .SIGMA..sub.a and difference .DELTA..sub.a channels, consists in calculating the expressions S=.SIGMA..sub.a .multidot..SIGMA..sub.e * and D=.DELTA..sub.a .multidot..SIGMA..sub.e * for different successive measurements made by the radar, then in calculating the expressions [S.sub.(k+1) -S.sub.(k-1) ].multidot.D*(k) for different successive times k-1, k, k+1 and in averaging the result of this expression or different times k, it being understood that the radar antenna sweeps in azimuth and that the radar wave emitted is polarized circularly, the single pulse azimuth and elevation receivers receiving respectively only one of the circular polarization types: right hand or left hand.

REFERENCES:
patent: 3794998 (1974-02-01), Pearson, Jr. et al.
patent: 4368468 (1983-01-01), Lisle et al.
patent: 4568940 (1986-02-01), Diamond
patent: 4646095 (1987-02-01), Kanter
patent: 4656480 (1987-04-01), Allezard et al.

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