Method and apparatus for tailored distortion of a signal...

H - Electricity – 03 – F

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

H03F 1/32 (2006.01)

Patent

CA 2262361

In order to minimize the adverse effects of RF signal nonlinearities during amplification, especially the deleterious effects of signal clipping which may cause uncontrolled out-of-band emissions known as "spectral regrowth", the specification relates to a device and a method for intentionally distorting a radio frequency (RF) signal in a "tailored manner", prior to the amplification of the RF signal. The device monitors the amplitude of a RF signal at the inlet of a "tailored" distorter. A modifying signal waveform is generated whenever the amplitude of the monitored RF signal is greater than a threshold value. The RF signal is delayed to account for signal processing time associated with the generation of the modifying signal waveform. The generated modifying signal waveform is then summed with the delayed RF signal, thereby forming an intentionally distorted version of the original RF signal. The distorted signal is conveyed to a RF signal amplifier for amplification. The modifying waveform is chosen so as to reduce the amplitude of the RF signal peak to a value that does not exceed the clipping threshold. Furthermore, the modifying waveform is chosen ("tailored") to be less harmful than the effects of the clipping distortion it replaces. The modifying waveform may be completely in-band, out-of-band, or have components of each, depending upon the specific implementation and the desired power spectrum. The process is compatible with current predistortion techniques and may used in conjunction with, or in lieu, of signal predistortion.

LandOfFree

Say what you really think

Search LandOfFree.com for Canadian inventors and patents. Rate them and share your experience with other people.

Rating

Method and apparatus for tailored distortion of a signal... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method and apparatus for tailored distortion of a signal..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for tailored distortion of a signal... will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFCA-PAI-O-1957796

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.