Communications: directive radio wave systems and devices (e.g. – Determining direction – Monopulse
Patent
1992-03-23
1993-02-02
Barron, Jr., Gilberto
Communications: directive radio wave systems and devices (e.g.,
Determining direction
Monopulse
375 1, 342189, G01S 1344, G01S 7295
Patent
active
051841355
ABSTRACT:
A system which receives a pseudonoise sequence signal quantizes the phase of the received signal in digital form as in-phase and quadrature digital signals. A digital correlator correlates the digital signals against the stored pseudonoise code sequence and separately accumulates the results. The accumulated results are vector added and a peak detector is utilized to determine the time of arrival of the signal. At the same time, the accumulated results are used by an arctangent calculator to derive a phase signal, which is gated as an output when the time of arrival is determined. An embodiment in a phase monopulse radar system collects the signals from four antennas spaced as pairs in both azimuth and elevation to determine the azimuth and elevation phase differences of the received signal. In this embodiment, a single digital correlator is utilized, the inputs to which are time multiplexed.
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Barron Jr. Gilberto
Davis David L.
GEC-Marconi Electronic Systems Corp.
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