Three digital techniques for open-loop acquisition of suppressed carrier signals in presence of binary-phase-shift-keyed (BPSK) modulation representing non-return-to-zero (NRZ) data symbols. Based on assumption that offset, tau, between timing of symbols and clock in receiver unknown, but fixed fraction of symbol period, T. In all three, fast Fourier transforms (FFT's) performed on outputs of integrate-and-dump filters that are parts of Costas-type loops used to demodulate BPSK signals. Timing of integrate-and-dump filters constant. Outputs mixed to obtain an error signal.
Open-Loop Acquisition Of Suppressed Carrier Signals
NASA Tech Briefs ; 16 , 9
1992-09-01
Miscellaneous
No indication
English
Radio Science Measurements with Suppressed Carrier
NTRS | 2013
|Radio science measurements with suppressed carrier
IEEE | 2013
|Open-Loop Acquisition Of Frequency In BPSK
NTRS | 1992
|Carrier Loop Architectures for Tracking Weak GPS Signals
Online Contents | 2008
|Carrier loop architectures for tracking weak GPS signals
IEEE | 2008
|