Communications: directive radio wave systems and devices (e.g. – Determining velocity – Combined with determining direction
Patent
1987-07-02
1990-02-20
Tarcza, Thomas H.
Communications: directive radio wave systems and devices (e.g.,
Determining velocity
Combined with determining direction
342100, 342101, 342147, G01S 1372, G01S 1350
Patent
active
049030302
ABSTRACT:
In a process and device for the angular discrimination of targets by airborne radar, the angular position of a point on the ground is ascertained as a function of the Doppler frequency of an echo signal relating to the point under consideration, as determined by passband filtering the echo signals.
The Doppler frequencies are selected by a bank of filters and an angular determination is made by analyzing signals including a signal representing the position in the bank of that filter selecting the Doppler frequency of the echo signal, and a reference frequency subject to closed loop control and representing the true Doppler frequency of the ground. Means are provided for maintaining data relating to the position and the range of the target constant during the process of analysis.
REFERENCES:
patent: 4549184 (1985-10-01), Boles et al.
R. A. Cherwek, "Coherent Active Seeker Guidance Concepts for Tactical Missiles", Eascon Conf. 1978, Arlington, VA, IEEE.
Barron Jr. Gilberto
Dubno Herbert
Electronique Serge Dassault
Tarcza Thomas H.
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