Patent ID: 7142595

Claim:
A system for reducing signal corruption in a communications system, comprising: a receiver having a frequency gain of (ν) at a normalized frequency of ν, wherein the receiver is configured to receive a main signal having a variance σ main 2 , wherein the receiver is further configured to receive a master-perturbation signal through a master coupling filter, wherein the master coupling filter has a filter coefficient of (ν), wherein the master-perturbation signal is characterized by a master channel white noise variance σ WM 2 and a disturbance signal spectral density σ dist 2 (ν), wherein the receiver has a signal-to-noise ratio (SNR) of: SNR ⁡ ( v ) = σ main 2 ⁢  ⁢ ( v )  2 σ WM 2 + σ dist 2 ⁢ ⁢ ( v ) ; and a secondary sensor coupled to the receiver, wherein the secondary sensor is configured to receive a slave-perturbation signal through a slave-coupling filter having a filter coefficient of (ν), wherein the slave-perturbation signal is characterized by a slave channel white noise variance of σ WS 2 and a disturbance signal variance σ dist 2 , wherein the secondary sensor is configured to decrease the disturbance spectral density from σ dist 2 (ν) to σ dist 2 ⁢ ⁢ ( v ) 1 + { ( σ dist 2 ⁢ ⁢ ( v ) ) ⁢ (  ⁢ ( v )  2 σ WS 2 ) } .