scholarly journals Design and Implementation of an Improved Costas Loop Circuits by Using FPGA

2016 ◽  
Author(s):  
Fangcheng Xing ◽  
Suzhen Wang ◽  
Weihua Zong ◽  
Shujian Zhang
Keyword(s):  
Design And Implementation ◽  
Costas Loop

Realization of Programmable BPSK Demodulator-Bit Synchronizer using Multirate Processing

2014 ◽  
Vol 3 (1) ◽  
pp. 18
Author(s):  
Anshuman Sharma ◽  
Abdul Hafeez Syed ◽  
Midhun M ◽  
M R Raghavendra
Keyword(s):  
Data Rate ◽  
Timing Error ◽  
Specific Data ◽  
Matlab Simulink ◽  
Design And Implementation ◽  
Loop Design ◽  
Error Detector ◽  
Costas Loop ◽  
Multirate Processing

This paper presents the design and implementation of programmable BPSK demodulator and bit synchronizer. The demodulator is based on the Costas loop design whereas the bit synchronizer is based on Gardner timing error detector. The advantage of this design is that it offers programmability using multi-rate processing and does not rely on computation of filter coefficients, NCO angle input for each specific data rate and thus avoids computational complexities. The algorithm and its application were verified on Matlab-Simulink and were implemented on ALTERA platform. A 32 kHz BPSK demodulator–bit synchronizer pair catering for a data rate from 1kbps to 8kbps was implemented.

The design and implementation of Biphase Costas Loop

1982 ◽  
Vol 5 (4) ◽  
pp. 253-260
Author(s):  
Hen‐Wai Tsao ◽  
Lee‐Chuan Chang
Keyword(s):  
Design And Implementation ◽  
Costas Loop

Design and implementation of a Costas loop down converter in FPGA

Exhibition ◽  
2009 ◽  
Author(s):  
Mike Roddewig ◽  
Seyed A. Zekavat ◽  
Saeid Nooshabadi
Keyword(s):  
Design And Implementation ◽  
Costas Loop

AAC Considerations for Individuals With Angelman Syndrome

2015 ◽  
Vol 24 (3) ◽  
pp. 106-113 ◽  
Author(s):  
Stephen N. Calculator
Keyword(s):  
Angelman Syndrome ◽  
Augmentative And Alternative Communication ◽  
High Tech ◽  
Alternative Communication ◽  
Design And Implementation

Purpose To provide an overview of communication characteristics exhibited by individuals with Angelman Syndrome (AS) and special considerations associated with the design and implementation of augmentative and alternative communication (AAC) programs. Method Results of recent studies exploring individuals' uses of AAC are reviewed, with particular emphasis on factors related to individuals' acceptance and successful uses of AAC systems. Results Not applicable Conclusion Despite their inconsistent access to practices previously found to foster individuals' acceptance of AAC systems, individuals with AS demonstrate the ability to use AAC systems, including high-tech AAC devices, successfully.

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