Elevation simulation for frequency scan three dimensional radar

Details Elevation simulation for frequency scan three dimensional radar Elevation simulation for frequency scan three dimensional radar

1979-01-02

1980-05-27

Tubbesing, T. H.

Communications: radio wave antennas

Antennas

Balanced doublet - centerfed

343 177, G01S 740

Patent

active

042043425

ABSTRACT:
A system for simulating, in the elevation dimension, an environment of tats, ground clutter and chaff to a frequency scan (inertialess) three-dimensional radar system transmitting frequency differentiated pencil beams to provide an elevation scan. To generate targets, the radar elevation simulation system determines the pencil beams in which a simulated target would appear and generates simulated target echo signals, frequency and time differentiated to correspond to the frequency and transmission time for the selected beams. For passive interference generation, the elevation simulation system gates on simulated ground clutter at short range and low elevation angles and simulated chaff at longer range and higher elevation angles and generates corresponding frequency and time differentiated simulated echo signals. The simulated target and simulated passive interference echo signals are mixed and then fed to the frequency scan radar system for conventional presentation on the radar displays.

REFERENCES:
patent: 2693647 (1954-11-01), Bolster et al.
patent: 2811789 (1957-11-01), Paine
patent: 2938278 (1960-05-01), Brown
patent: 3060424 (1962-10-01), Hansen
patent: 3894347 (1975-07-01), Sleven et al.
patent: 3971020 (1976-07-01), Howard
patent: 4158840 (1979-06-01), Schwab

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