Instrument alignment devices and methods

Details Instrument alignment devices and methods Instrument alignment devices and methods

2005-01-11

2005-01-11

Wong, Don (Department: 2821)

Communications: radio wave antennas

Antennas

With means for moving directive antenna for scanning,...

C073S503300, C073S504080, C073S504180

Reexamination Certificate

active

06842153

ABSTRACT:
An apparatus for determining an instrument boresight azimuth heading. A typical apparatus comprises a gyro having a first input and a first output and a rocking angle generator having a second output, wherein the second output is communicatively coupled to the first input of the gyro, producing a demodulated signal at the first output. A signal multiplier is communicatively coupled to the second output and the demodulated signal for multiplying the second output and the demodulated signal and producing a multiplied signal and a filter communicatively coupled to the multiplied signal for producing a filtered output.

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