Hop timing recovery algorithms
- Resource Type
- Conference
- Authors
- Yazdani, Navid; List, Nancy; Hutchenson, Dwight; Royster, Thomas; Shoup, Ryan
- Source
- MILCOM 2009 - 2009 IEEE Military Communications Conference Military Communications Conference, 2009. MILCOM 2009. IEEE. :1-7 Oct, 2009
- Subject
- Aerospace
Communication, Networking and Broadcast Technologies
Computing and Processing
Signal Processing and Analysis
Transportation
Timing
Fires
Content addressable storage
Databases
Military aircraft
Data processing
Modems
Weapons
Wireless sensor networks
Information technology
- Language
- ISSN
- 2155-7578
2155-7586
Communication systems must maintain tight timing synchronization between the transmitter and receiver. Systems typically pull-in timing from a large timing offset and then track timing once it has been sufficiently pulled in. When timing errors are large, additional reference symbols are needed to pull-in time. In some frequency hopping systems, the time pull-in step must be repeated for every hop and could occur many times a second. It then becomes important to develop rapid time pull-in algorithms that can operate on a limited number of data and reference symbols. This paper presents two algorithms for rapid time pull-in. The performance as a function of the number of data and reference symbols is shown.