THRIMOS

Three-Dimensional RF Intersection Monitoring System

STATUS | Ongoing
STATUS DATE | 31/01/2025
ACTIVITY CODE | 6A.089
THRIMOS

Objectives

THRIMOS addresses the current need for automated, optimized and systematic RF measurement tasking driven by factors associated with increased space object catalogue, especially for NGSO, for optimized RF ground infrastructure and RF-link usage.

In addition, the THRIMOS web-based interface provides a user-friendly multi-user experience for any distributed team involved in the RF management tasking enterprise.

THRIMOS, in its first stage, is deployed as a prototype for (commercial and governmental) Satcom customers. The goal is to demonstrate

  • Measurement tasking using RF scenarios for custody observations of all operational satellites in the unclassified NORAD catalogue in LEO and MEO, 

  • Repeated observations of a set of high priority GEO objects, 

  • Sky survey RF-observations covering the GEO belt region accessible from the selected ground station, and 

  • Prediction of RF-conjunctions.

THRIMOS System Overview and Context
THRIMOS System Overview and Context

Challenges

  • Show that a systematic RF measurement has advantages over the existing round-robin RF measurements established in the satellite carrier monitoring today.

  • Implement RF conjunction prediction.

  • Conduct an empiric field test, where the calculations of the orbital traces trigger RF measurements to prove RF conjunctions with spectrum plots. Such proof can show whether or not there is a problem with interference in the context of New Space / large constellations.

System Architecture

THRIMOS consists of two main parts:

  • The data processing SW framework with the RF enabled data repository as infrastructure

  • The algorithms, external interfaces (including frontends) and processes

This can be further broken down into: 

  • Software services to cover the following functions:

  • Automated processing framework

  • A set of algorithms for RF interference scenarios analysis

  • Data repository

  • Set of interfaces and APIs

  • Frontend framework

  • Optional measurement and control hardware

  • SW and HW documentation

Plan

KO with ESA on 08.12.2023, internally already 2 months earlier. Hence, the Requirements Review (RR) took place on 15.12.2023.

With PDR (planned February 2024), the initial architecture and the external interfaces should be sufficiently defined and agreed to continue in Agile (Scrum) devlopement cycles until SW-CDR1 (planned autumn 2024).

Testing with stakeholders accompanies the development already from early stages on, finalized by an empiric system test with a major stakeholder.

The project end is planned for Q1/2025.

Current Status

PDR achieved 22/02/2024.

SW CDR achieved 25/10/2024.

Empiric system tests with stakeholders ongoing.