CARRIER-DETECTOR EXTENDS ACQUISITION RANGE OF BPSK
International Telemetering Conference Proceedings / September 28-30, 1982 / Sheraton Harbor Island Hotel and Convention Center, San Diego, California === The capture and tracking range of a Costas type BPSK (QPSK) demodulator is limited by its loop bandwidth, which is determined by the synchronizat...
| Main Author: | |
|---|---|
| Other Authors: | |
| Language: | en_US |
| Published: |
International Foundation for Telemetering
1982
|
| Online Access: | http://hdl.handle.net/10150/613079 http://arizona.openrepository.com/arizona/handle/10150/613079 |
| Summary: | International Telemetering Conference Proceedings / September 28-30, 1982 / Sheraton Harbor Island Hotel and Convention Center, San Diego, California === The capture and tracking range of a Costas type BPSK (QPSK) demodulator is limited
by its loop bandwidth, which is determined by the synchronization threshold at different
Signal-to-Noise Ratio. A frequency locked scheme, which consists of a carrier detector
and digital control network, has been developed to work in parallel with the Costas loop,
so the BPSK (QPSK) demodulator would be automatically led to its pull-in range at low
Signal-to-Noise Ratio. The probabilities of false dismissal for signal and false alarm signal
absent are analyzed. |
|---|