TDC Delay Models and Delay Correction Models Generation

The intent of the TALON Demonstration Correlator (TDC) is to have a correlator on the sky using the TALON hardware and Frequency Slice Architecture (FSA) signal processing algorithms. TDC will be used for early integration with  DISH, TMC and SDP.  Mid.CBF DDD and Test Specification define the hi-level BITE architecture;  BITE firmware and software developed for TDC will be fully re-used for Mid.CBF.

This purpose of this feature is twofold:

1. To add computation of propagation models from an astronomical source to a given receptor used during Long Sequence Test Vector (LSTV) generation.  Each astronomical noise source being simulated in the test vector needs the wavefront arrival at the receptor to be accurately modeled by applying a time-varying delay that represents the change in propagation time from the source to the receptor over the duration of the test vector.
2. To add generation of Delay models used during processing by the TDC/Mid.CBF delay tracking functionality.  These should match the delay model format expected from TMC.

The required tools to achieve these objectives will be developed in Matlab and are based on the Mid.CBF Signal Processing Matlab Model prototype (311-000000-007).

Note that for consistency  with the Signal Processing Matlab Model , the following terminology will be used:

• Delay Models:  models used for the LSTV generation (point 1)
• Delay Correction Models:  models used for the LSTV generation (point 2)

LSTV delay model generation is not required for BITE MVP #3 and will be tested in a standalone manner so it is ready for integration with BITE MVP #4 firmware and embedded SW.