US 12,490,212 B2
Method for performing synchronization in distributed carrier communications
Willis Lauritz Petersen, III, San Antonio, TX (US)
Assigned to Spectric Labs, Inc., Chantilly, VA (US)
Filed by Spectric Labs, Inc., Chantilly, VA (US)
Filed on Mar. 23, 2023, as Appl. No. 18/188,556.
Claims priority of provisional application 63/324,181, filed on Mar. 28, 2022.
Prior Publication US 2023/0309039 A1, Sep. 28, 2023
Int. Cl. H04W 56/00 (2009.01); H04K 3/00 (2006.01); H04L 9/40 (2022.01)
CPC H04W 56/0015 (2013.01) [H04K 3/827 (2013.01); H04W 56/0035 (2013.01); H04L 63/162 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method for enabling a receiver to synchronize to a transmitter waveform employing a distributed carrier comprising:
using a synchronization waveform that requires only limited resources for detection while concomitantly possessing similar low probability of intercept/low probability of detection characteristics as the transmitted waveform employing a distributed carrier;
performing synchronization by using only an entirety of said synchronization waveform and not as individual carriers or channels even though that is the shape of the waveform;
providing that no single carrier conveys any useful information; and
utilizing a differentially encoded synchronization search pattern in a covert communications system employing low probability of intercept/low probability of detection waveforms.