Patent ID: 8355470

Claim:
A method for receiving signals, comprising: receiving a first linearly polarized component of a signal; down-converting the first linearly polarized component to a lower intermediate frequency, prior to the step of down-converting the first linearly polarized component to the lower intermediate frequency, amplifying and band pass filtering the first linearly polarized component; further down-converting the first linearly polarized component from the lower intermediate frequency to a beat frequency suitable for audio/video processing, prior to the step of down-converting the first linearly polarized component from the intermediate frequency to the beat frequency, amplifying and band pass filtering the first linear component at the lower intermediate frequency; analog-to-digital converting the first linearly polarized component to produce a digital representation of the first linearly polarized component at the beat frequency; receiving a second linearly polarized component of the signal, wherein the second linearly polarized signal element is orthogonal to the first linearly polarized component; down-converting the second linearly polarized component to the lower intermediate frequency, prior to the step of down-converting the second linearly polarized component to the lower intermediate frequency, amplifying and band pass filtering the second linearly polarized component; further down-converting the second linearly polarized component from the lower intermediate frequency to the beat frequency, prior to the step of down-converting the second linearly polarized component from the lower intermediate frequency to the beat frequency, amplifying and band pass filtering the second linear component at the intermediate frequency; analog-to-digital converting the second linearly polarized component to produce a digital representation of the second linearly polarized component at the beat frequency; and performing polarization correction on the first and second digital representations of the linearly polarized components, wherein the step of performing polarization correction on the down-converted linearly polarized components further includes adjusting gain and phase difference between the digital representations of the first and second components to account for a difference in electrical length between two down-conversion paths and performing polarization loss factor correction on the down-converted linearly polarized components in order to recreate a linearly polarized signal.