A communications system may be characterized by a system error variance
because the error variance provides an indication of signal corruption in
the system. By strategically adding a secondary sensor to the
communications system, system characteristics may be altered so that the
system error variance is reduced. A system and method are presented,
wherein a secondary sensor is configured to receive a disturbance effect
and produce a filtered slave signal as a function of the disturbance
effect. The filtered slave signal is configured to alter the
characteristics of the communications system and thereby reduce system
error variance.