US 12,068,837 B2
Adjusting transmissions based on direct sensing of the ionosphere
Kevin J. Babich, Valparaiso, IN (US)
Assigned to Skywave Networks LLC, Chicago, IL (US)
Filed by Skywave Networks LLC, Chicago, IL (US)
Filed on Sep. 29, 2022, as Appl. No. 17/936,442.
Application 17/936,442 is a continuation of application No. 15/929,250, filed on Apr. 3, 2020, granted, now 11,496,210.
Application 15/929,250 is a continuation of application No. PCT/US2018/054165, filed on Oct. 3, 2018.
Claims priority of provisional application 62/567,802, filed on Oct. 4, 2017.
Prior Publication US 2023/0283363 A1, Sep. 7, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. H04B 7/22 (2006.01); G01S 13/95 (2006.01); G01W 1/00 (2006.01); H04B 17/391 (2015.01)
CPC H04B 7/22 (2013.01) [G01S 13/956 (2013.01); G01W 1/00 (2013.01); H04B 17/391 (2015.01)] 20 Claims
OG exemplary drawing
 
1. A system, comprising:
a first communication node for sending a data transmission as an electromagnetic wave over a data transmission path using skywave propagation, wherein the data transmission path includes a reflection point where the electromagnetic wave of the data transmission is reflected by the ionosphere;
a second communication node for receiving the data transmission from the first communication node;
an atmospheric sensor configured to collect ionospheric data at the reflection point of the data transmission from the first communication node;
a transmission frequency model for determining an optimum working frequency at which to transmit the data transmission over the data transmission path;
wherein the transmission frequency model uses the ionospheric data measured by the atmospheric sensor as an input to determine the optimum working frequency; and
wherein the transmission frequency model uses ionospheric data measured by the atmospheric sensor to encode a transmitted data signal.