Composite (Compatible) Color Television

NTSC Color Signals

mL(t) = 0.11 mb(t) + 0.59 mg(t) + 0.30 mr(t)	Luminance Signal (Bandwidth = 4.2 MHz)
mI(t) = -0.32 mb(t) - 0.28 mg(t) + 0.60 mr(t)	Chrominance Signal: hue (Bandwidth = 1.6 MHz)
mQ(t) = 0.31 mb(t) - 0.52 mg(t) + 0.21 mr(t)	Chrominance Signal: saturation (Bandwidth = 0.6 MHz)
	Transformation Matrix

NTSC Color Encoding System

Composite NTSC signal

Interlacing of Chromanance Signals

Sketch of Transmitter

Video Spectrum with Chrominance Signals

 

References

Additive Mixing

Video Signal Formats: a simplified tutorial that discusses color encoding and the frequency interleaving of color and luminance information in the NTSC video system.

Guide to Comb Filters: Y/C Separation by Greg Rogers