Sonar beam forming utilizing the chirp Z-transform

Details Sonar beam forming utilizing the chirp Z-transform Sonar beam forming utilizing the chirp Z-transform

1979-09-14

1981-07-21

Farley, Richard A.

Communications, electrical: acoustic wave systems and devices

Echo systems

Distance or direction finding

367121, G01S 1504

Patent

active

042802032

ABSTRACT:
The chirp rate in a chirp Z-transform sonar beam former is varied as a function of range to form beams in the near field. The chirp rate may be varied with each range cell under examination or with each group of range cells.

REFERENCES:
patent: 3950723 (1976-04-01), Gilmour
Jack et al., Electronics Letters, vol. 13, No. 3, Feb. 1977, pp. 65-66.

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