Title :
New Carrier Tracking Technique for High-Dynamic Spread Spectrum Signals
Author :
Cheng, Naiping ; Ren, Yufei ; Wan, Yapin
Abstract :
For the problem of carrier acquisition and tracking of high-dynamic spread spectrum signals, the analysis is presented for the influence of Doppler frequency shifts to the design of PLL (Phase Locked Loops), FLL (Frequency Locked Loops), and loop filters. A new design scheme of digital complex soft loop is proposed, and the simulation results show that the problem of fast carrier acquisition and tracking can be solved by this digital complex soft loop.
Keywords :
Doppler shift; filters; frequency locked loops; phase locked loops; spread spectrum communication; Doppler frequency shifts; FLL; PLL; carrier acquisition; carrier tracking technique; digital complex soft loop; frequency locked loops; high-dynamic spread spectrum signals; loop filters; phase locked loops; Detectors; Filters; Frequency estimation; Frequency locked loops; Frequency synchronization; Military communication; Phase detection; Phase locked loops; Spread spectrum communication; Tracking loops;
Conference_Titel :
Wireless Communications, Networking and Mobile Computing, 2007. WiCom 2007. International Conference on
Conference_Location :
Shanghai
Print_ISBN :
978-1-4244-1311-9
DOI :
10.1109/WICOM.2007.510
