SSM

- Spread Spectrum Demodulator Module

STATUS | Completed
STATUS DATE | 07/07/2021
ACTIVITY CODE | 4D.033

Objectives

The main objective of this project is to design and test an ETSI-compliant spread spectrum demodulator module, which can be implemented in the Kongsberg telecommand receiver.

Challenges

The main challenge in the program is related to development of robust algorithms for spread spectrum acquisition and tracking during extreme Doppler conditions.

System Architecture

The target for the Spread Spectrum Demodulator Module will be an implementation in an FPGA or possibly in an ASIC for utilization within the KSE Command Receiver. The Spread Spectrum Demodulator will perform the demodulation of the incoming RF signal after the initial signal processing steps (i.e. RF down conversion, filtering and level control).

Plan

The project plan included the following steps and gates
1.    Requirements Analysis & Definition phase
     – Including FPGA Requirements, Feasibility and Risks
     – This task was concluded with the System Requirements Review for the FPGA
2.    Architectural Design & Algorithms Selection
     – Including Architecture Definition/verification /optimization
     – This task was concluded with the Baseline Design Review
3.    Architecture Verification and Optimization & Preliminary Implementation and HW tests
     – Including Implementation/Verification of SSM code performance in Lab
     – This task was concluded with Preliminary Design Review combined with Test Review

Current Status

The work is completed.