Please use this identifier to cite or link to this item: http://scholarbank.nus.edu.sg/handle/10635/72832
Title: Open-loop tanlock carrier recovery structure for BPSK and its performance
Authors: Kam, Pooi Yuen 
Issue Date: 1995
Source: Kam, Pooi Yuen (1995). Open-loop tanlock carrier recovery structure for BPSK and its performance. IEEE Communication Theory Mini-Conference, Proceedings, CTMC : 177-181. ScholarBank@NUS Repository.
Abstract: The tanlock carrier recovery structure has been shown to be the low SNR approximation to the optimum ML carrier phase estimator for a carrier with linear data modulations such as MPSK. It has long been known to have better performance than a Costas' loop or a squarer/PLL for BPSK, because its tangent-function phase detector characteristic has an extended linear range compared to the sine-function phase detector characteristic of the latter loops. Its implementation in conventional closed-loop form, however, requires the use of a divider which suffers from the problem of output overflow when the input divisor signal becomes very small. We suggest here an open-loop implementation which does not require the use of a divider and a VCO. The operational and performance advantages of this open-loop implementation over the conventional closed-loop implementation are pointed out. Some sample BER results for a coherent receiver employing this open-loop tanlock carrier recovery system are obtained via computer simulations. The results show that the receiver achieves significant performance gains over differential detection.
Source Title: IEEE Communication Theory Mini-Conference, Proceedings, CTMC
URI: http://scholarbank.nus.edu.sg/handle/10635/72832
Appears in Collections:Staff Publications

Show full item record
Files in This Item:
There are no files associated with this item.

Page view(s)

24
checked on Dec 9, 2017

Google ScholarTM

Check


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.