초록 ▼

A wide bandwidth interferometer which may be employed in a guidance system for a rolling missile delays the radar signals detected by one of the antennas by a fixed amount and the signals detected by the other antenna by a variable amount prior to their multiplication in a device which first advance

A wide bandwidth interferometer which may be employed in a guidance system for a rolling missile delays the radar signals detected by one of the antennas by a fixed amount and the signals detected by the other antenna by a variable amount prior to their multiplication in a device which first advances the phase of one of the signals by 90°. The product signal, which is proportional to the sine of the angle between the rolling axis and the line-of-sight to the target, is integrated in a limited-integrator whose output is summed with a pick-off signal from an onboard gyroscope. The sum signal determines the amount of the variable delay, while the output of the integrator controls the gyroscope to align it with the radar signal direction and the missile steering apparatus to home it on target.

대표청구항 ▼

A wide bandwidth interferometer comprising in combination a pair of spaced antennas; means for delaying the signals detected by one of said antennas by a fixed amount and the corresponding signals detected by the other of said antennas by a variable amount; means for shifting the phase of the signal

A wide bandwidth interferometer comprising in combination a pair of spaced antennas; means for delaying the signals detected by one of said antennas by a fixed amount and the corresponding signals detected by the other of said antennas by a variable amount; means for shifting the phase of the signals delayed by said fixed amount by a positive 90°and for multiplying the phase shifted signals and the signals delayed by said variable amount; means for integrating the product signal; and means for adjusting the orientation of said antennas and said variable amount in accordance with the signal developed by said integrating means so as to align an axis that is perpendicular to the line connecting said antennas with the incoming direction of the signals detected by said antennas.