System and method for power ratio determination with common...

Details System and method for power ratio determination with common... System and method for power ratio determination with common...

2007-09-18

2007-09-18

Benson, Walter (Department: 2858)

Electricity: measuring and testing

Electrostatic field

Reexamination Certificate

active

11095180

ABSTRACT:
A system for processing signals includes a receiver assembly for receiving a signal. The signal has a sample component with a sample electric field and a sample polarization, and has a reference component with a reference electric field and a reference polarization. The receiver assembly includes an analyzer for polarimetrically processing the signal, including differencing the signal to generate a difference electric field proportional to the difference of the sample and reference electric fields. By polarimetrically differencing the signal, the analyzer reduces the magnitude of the common-mode signal at the difference signal receiver. The receiver assembly includes an electric-field detector for measuring the difference electric field such that the reduction in common-mode amplitude decreases the noise equivalent power of the electric-field detector. One advantage of the present invention, then, is the reduction of noise equivalent power of the electric-field detector when measuring small variations in large electric fields.

REFERENCES:
patent: 5883518 (1999-03-01), Borden
patent: 5966019 (1999-10-01), Borden
patent: 6348683 (2002-02-01), Verghese et al.
patent: 6500618 (2002-12-01), Woolard et al.
patent: 2002/0067480 (2002-06-01), Takahashi
patent: 2004/0114939 (2004-06-01), Taylor
patent: WO 2004/083796 (2004-09-01), None

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