future navigation signals: need for...

Copyright © 2017 Boeing. All rights reserved.

Douglas Skinner

Future Navigation Signals: Need for Flexibility

1

8 Nov 2017


Space and Missile Systems | Satellite Systems

GPS Signal History

2040

1978-85Block I

1989 - 1997Block II/A

1997-2004Block II/R

2010-2016Block IIF

2018-23 Block III

2025-31Block III SV 11 +

Legacy

Single civil signal (L1C/A)P(Y)-code (L1&2)

Modernization

2nd civil frequency (L2C)3rd civil signal (L5)Military-code (L1M & L2M)

Block III

4th civil signal (L1C)

L2 L1

L5 L2C L1M L1C

1980 1990 2000

2005-2009Block IIR-M

2010 2020 2030

Block III 11+

History shows more signals will be desired

Unclassified

• GPS satellites have lasted in operation as long as 24 years

• Continued growth expected in signal needs



International Signal Growth

§GLONASS§ Moving to CDMA

§BeiDou§ Regional going global, B1, B1-2, B2, B3

§Galileo§ E5, E6, E2-L1-E11

§Navic§ Regional L5, S

§QZSS§ Regional, L1, L2, L5, LEX



Need for Additional Signal Capability - Authentication

§Pilot reports regarding incidents of GPS signal loss have increased.1

§ In April last year, South Korea said that around 280 vessels had to return to port after experiencing problems with their navigation systems.2

§Truck accidentally driver jams Newark airport. 3

1 Aviationtoday.com 2 Hellenicshippingnews.com3 CNET.com



Emerging Applications

§Large vehicles relying on navigation need evolving signals and integrity–Self-driving cars–Drone delivery–Autonomous mass transportation

Source: U.S. Department of Transportation



Signals in Development

§There are multiple companies and institutions working on new signals– Stanford and Boeing are working on civil authentication signals

§Galileo has authentication on civil signals§University of Cambridge – navigation digital signatures§Software defined navigation receivers – allowing for new signals§Multiple reports on practical cryptographic for civil signal authentication



Technology Available

§Today’s satellite systems technology can accommodate changes§Commercial communications satellites are successfully deploying reprogramming

capabilities today– Intelsat 37e: "This latest launch is an example of our emphasis on quality and reliability to deliver the

right products and capabilities to our customers," said Paul Rusnock, vice president and general manager of Boeing Satellite Systems. "Boeing’s digital payload technology gives our customers the flexibility to adapt to surges in demand for connectivity when and where it is needed, as well as adapt to any changes in their business needs or missions."

future navigation signals: need for...

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