TY - RPRT TI - Tracking Data Acquisition System (TDAS) for the 1990's. Volume 6: TDAS navigation system architecture AU - Elrod, B. D. AU - Jacobsen, A. AU - Cook, R. A. AU - Singh, R. N. P. PY - 1983 UR - https://ntrs.nasa.gov/citations/19840011306 ID - 19840011306 ER -