Q. Anti reflection coated optics reduce __________

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Q. Star signal power is directly proportional to an effective area of a telescope.

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Q. The ratio of the focal length to aperture is called the __________

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Q. The physical size of the star depends upon __________

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Q. What is the image of the star at the focal plane called as?

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Q. What is the physical diameter of the first optical element in the telescope?

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Q. Which of the following uses lens and mirrors for focusing?

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Q. The angular error is the angular difference between computed LOS and the physical star sensor LOS.

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Q. The inertial LOS to any star is precisely given from _______

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Q. The observability problems are greatly intensified if the telescope is rigidly mounted to the IMU.

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Q. Which of the following is required to integrate stellar navigation and inertial navigation to get the best estimate navigation solution?

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Q. The sensors that maintain a centered star image for celestial navigation is called as _________

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Q. Why is the inertial navigation system combined with celestial navigation system?

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Q. What is it called when the position is determined by angles between a star and an accurate time reference?

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Q. Which of the following can be used to estimate the latitude in the northern hemisphere using the horizon as a reference?

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Q. Which of the following are false with respect to stellar navigation?

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Q. What type of waveform must be transmitted to reduce Doppler shit errors?

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Q. Which of the following is responsible for the reduced use of transmitter power in radar altimeter?

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Q. Which of the following is true with respect with solid state transmitters in pulsed radar altimeters?

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Q. What is the frequency designated to radar altimeters?

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