Claims
- 1. An apparatus for determining an instrument boresight azimuth heading, comprising:
a gyro having a first input and a first output; 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 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.
- 2. The apparatus of claim 1, further comprising a display for displaying the filtered output.
- 3. The apparatus of claim 1, further comprising a clock for determining when the filtered output has stabilized.
CROSS-REFERENCE TO RELATED APPLICATIONS
[0001] This application claims the benefit under 35 U.S.C. § 120 of the following co-pending and commonly-assigned U.S. patent application, which is incorporated by reference herein:
[0002] U.S. application Ser. No. 09/862,882, filed May 21, 2001, by A. Dorian Challoner, entitled “INSTRUMENT ALIGNMENT DEVICES AND METHODS”.
Divisions (1)
|
Number |
Date |
Country |
Parent |
09862882 |
May 2001 |
US |
Child |
10439364 |
May 2003 |
US |