FIG 15 depicts a frequency analysis 1500 of the PWM output signal y in signal processing system 700 using the random noise version of output modification signal QOM to modify {HEAD ~ the loop filter output signal LF} using {TAIL ~ random noise} 
using
FIG 15 depicts a frequency analysis 1500 of the PWM output signal y in signal processing system 700 using the random noise version of output modification signal QOM to modify { HEAD ~ the loop filter output signal LF } using { TAIL ~ random noise }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL