TDC MVP1 Build 1 - Execute Test Plan (Part 4)

The Resampler/Delay-Tracking FW has been shown to have excellent accuracy, producing the expected phase-shift across the frequency spectrum for various delays. Cross-correlation phase = 2 * pi * frequency * relative delay. The python notebook testing environment was upgraded to provide first order delay models (in addition to resampling), with the appropriate phase corrections added to account for the effects of performing resampling and delay correction after the Very Coarse Channelisation (VCC). The delay introduced between polarisations in the long sequence test vector (at the wide-band sample rate, 3.96GHz) can be completely removed by the RDT (at the frequency slice sample rate, 220MHz). This results in a perfect cross correlation between polarisations. Demoed OMC demo 19.6.   The flatness of the sub-channel frequency response out of the 16k channeliser was shown to be good, by stimulating the data path with a sinusoidal tone being slowly swept across several sub-channels. This accurately tested the response at at many sub-channel frequencies in succession, tracing out the shape of the channeliser's frequency response.  Combining the response of adjacent channels gives an overall flat response (all frequencies contribute equally) across the frequency slice.  Demoed OMC demo 19.4.   Tests completed from the original plan are 2.1, 3.1, 3.2, 4.1, 5.1 and 5.2.