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finalexam(1)

# finalexam(1) - n ˆ e and ˆ d 1 Problem 2(35 points Work...

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Name EEL 6935 – Electronic Navigation Systems Final Exam Due Tuesday, April 27, 2004 Problem 1 (30 points) Find the rotation matrix from ECEF to local level, R NED ECEF in the equation x NED = R NED ECEF x ECEF , as a function of the ECEF coordinates, x ECEF = ( x, y, z ). Assume a spherical Earth. HINT: Find the East and Down unit vectors, ˆ e and ˆ d , as a function of ( x, y, z ) using geometry. Then the North unit vector can be found from ˆ n = ˆ e × ˆ d . The elements of the matrix R NED ECEF are composed of the components of the vectors ˆ

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Unformatted text preview: n , ˆ e , and ˆ d . 1 Problem 2 (35 points) Work problem 5-3 on page 203 of the text. HINT: This problem is very similar to problem 3 on homework 3, except that there are three satellites instead of two, and the clock error is unknown. 2 Problem 3 (35 points) Find all possible positions for the taps in a 4-bit feedback shift register that produce m-sequences. HINT: There are seven possiblities to check. 3...
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finalexam(1) - n ˆ e and ˆ d 1 Problem 2(35 points Work...

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