DIRECTION FINDING SYSTEM
Assignee
SANDERS ASSOCIATES, INC.
Filed
Jan 18, 1984
Granted
Aug 23, 1988
Location
HUDSON NH US
Abstract
An adcock DF-on-the-fly type direction finding system employing a beam forming dispersive delay line (BFDDL). A square array of four elements A1, B1, C1, and D1 with A1, C1 and B1, D1 being the diagonal pairs is used to input signals to combiner, shifter and summer elements to produce signals representing S phi =A1+B1+C1+D1 and S=(B1-D1)+[(A1-C1) shifted -90 DEG ]. S phi and S are input to the BFDDL which produces output signals sampled from the output spatial interference pattern of the BFDDL at 90 DEG intervals. The output signals from the BFDDL are used to calculate the arrival of the signal of interest as being substantially equal to the phase shift between S phi and S.
Source: Google Patents
35 USC §181 Secrecy Order
Imposed
Sep 10, 1984
Rescinded
Sep 8, 1987
Duration
2 years, 12 months
Inventor
- 1VICTOR A. MISEK
Record Details
- Patent number
- US 4766439
- Application
- 00657177
- Aerospace match
- Yes
- Dataset source
- 35 USC §181 SO records
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