Echo location systems

Details Echo location systems Echo location systems

1980-09-02

1984-01-24

Tubbesing, T. H.

Communications: radio wave antennas

Antennas

Balanced doublet - centerfed

367100, G01S 1358

Patent

active

RE0315095

ABSTRACT:
This invention generally relates to echo location or ranging systems in which the individual properties of targets or reflectors (such as range, bearing, elevation angle, relative velocity, impedance contrast, etc.) in a field of targets within some propagation medium are identified by the emission of signals into the propagation medium and processing of the detected reflections from the target field.

REFERENCES:
patent: 3377587 (1968-04-01), Nakahara et al.
patent: 3440653 (1969-04-01), Le Mair et al.
patent: 3829860 (1974-08-01), Cutler et al.
patent: 4028699 (1977-06-01), Stevens
patent: 4067009 (1978-01-01), Constant
patent: 4308536 (1981-12-01), Sims, Jr. et al.

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