USNDS System Engineering and Architecture Design
Abstract
The future USNDS build consists of an ICADS satellite ground data processing system and UGNT trailers that accommodate the new NDS payload on GPS IIIF family of vehicles and are an upgrade to the current USNDS 6 program. USNDS ICADS reports endoatmospheric, transition and near-space nuclear detonations as detected by the USNDS sensors aboard the GPS satellites, DSP satellites and SABRS equipped satellites. ICADS processes NDS, State-of-Health (SOH), and navigation data from GPS IIIF. USNDS UGNT provide NUDET Detection Reports to end users through survivable/endurable USNDS communications via Milstar/AEHF circuits. USNDS also consists of the Integrated Data Denial (IDD). IDD is a Communications Security (COMSEC) device associated with the USNDS. IDD provides decryption of satellite position data and NDS sensor data used to detect, locate, and report nuclear detonations in earth's atmosphere or near-space in near real time. This IDD effort contains cryptographic modifications mandated by National Security Agency (NSA). In addition, parts obsolescence requires the start of a new IDD design and manufacturing effort.
Document Details
- Document Type
- Accomplishment
- Publication Date
- Oct 01, 2021
- Source ID
- 82aa129bacd1e987af14b2969eb2df03