Midterm exam time!

Sign up for updates here: https://mailchi.mp/d95b0d174531/odcourse

Skip to content
# Tag: featured

Midterm exam time!

Sign up for updates here: https://mailchi.mp/d95b0d174531/odcourse

Learning a new software for CAD/modeling. Posted the finished product.

Two way ranging and Doppler systems are summarized. Differenced measurements or “differencing,” is explained. For additional explanation on differencing see Penn State’s course for Geospatial and GNSS professionals (https://www.e-education.psu.edu/geog862/node/1727).

Sign up for updates here: https://mailchi.mp/d95b0d174531/odcourse

The environment and relativity effects on radio and optical communications are introduced. One-way range measurement systems are introduced. GPS is provided as an example but it still applies to GLONASS and Galileo. Two-way range, Doppler, and differenced measurements are considered next.

Sign up for updates here: https://mailchi.mp/d95b0d174531/odcourse

Demonstrate understanding of orbital mechanics necessary to complete orbit determination course. In problem 1, position and velocity are converted between osculating elements and sub-satellite points. In problem 2, the receiver measurements confirm the node location varies over time. In problem 3 the equations of motion are numerically integrated for a GLONASS satellite for one day.

We resumed with perturbations today! Sorry for being out sick on Friday and Monday.

Sprinting through orbital mechanics. We covered the two-body problem. We will resume with perturbations and additional bodies considered in the system.

I’ve officially passed my qualifying exams. I took my qualifiers in both Intermediate Dynamics and Space Systems. Having passed both…

I pick up again by reviewing the solution to the problem assigned during Lecture 1. A few common coordinate systems and reference frames are introduced, orbital perturbations are introduced, and an example problem to be solved in Lecture 4 is given to the class to start on.

Solving for the state vector in a uniform gravitational field with “true,” range observations.

Copyright © 2020 Simpson Aerospace — Velux WordPress theme by GoDaddy