Doom9's Forum - View Single Post - Trying to recreate a composite signal simulation

DTL · 13th October 2022, 23:31

Take any open documentation on your target colour composite system encoder and make math program to some execution environment.

PAL and NTSC quadrature modulation is simple enough like multiplication and sum of sin() functions. I think most information can be taken from ITU-BT 470 - https://www.itu.int/dms_pubrec/itu-r...1-S!!PDF-E.pdf

For example math equation for chroma signal from 2.9 of Table 2. Also read about phase switching of chroma subcarrier - like 2.16 of Table 2 and may be other notes in that document.

13th October 2022, 23:31	#4 \| Link
DTL Registered User Join Date: Jul 2018 Posts: 1,072	Take any open documentation on your target colour composite system encoder and make math program to some execution environment. PAL and NTSC quadrature modulation is simple enough like multiplication and sum of sin() functions. I think most information can be taken from ITU-BT 470 - https://www.itu.int/dms_pubrec/itu-r...1-S!!PDF-E.pdf For example math equation for chroma signal from 2.9 of Table 2. Also read about phase switching of chroma subcarrier - like 2.16 of Table 2 and may be other notes in that document.