US 11,671,156 B1
Error correction in a distributed beamforming
John Kleider, Fairfax, VA (US); and Christopher Steenhoek, Fairfax, VA (US)
Assigned to General Dynamics Mission Systems, Inc.
Filed by General Dynamics Mission Systems, Inc., Fairfax, VA (US)
Filed on May 17, 2022, as Appl. No. 17/663,731.
Int. Cl. H04B 7/06 (2006.01)
CPC H04B 7/0617 (2013.01) 20 Claims
OG exemplary drawing
 
1. A method for transmitting a data signal employing a digital beamforming technique comprising:
receiving, at a first antenna, a first transmitted signal from a first transmitter and a second transmitted signal from a second transmitter;
determining a first phase offset in response to the first transmitted signal received at the first antenna and a second phase offset in response to the second transmitted signal received at the first antenna;
receiving, at a second antenna, the first transmitted signal from the first transmitter and the second transmitted signal from the second transmitter;
determining a third phase offset in response to the first transmitted signal received at the second antenna and a fourth phase offset in response to the second transmitted signal received at the second antenna;
generating a first correction weight in response to an average of the first phase offset and the third phase offset;
generating a second correction weight in response to an average of the second phase offset and the fourth phase offset; and
transmitting the first correction weight to the first transmitter and the second correction weight to the second transmitter.