costas loop
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Author(s):  
Carl Heine ◽  
Vincent Lammert ◽  
Vadim Issakov ◽  
Dietmar Kissinger
Keyword(s):  
60 Ghz ◽  

2020 ◽  
Vol 56 (6) ◽  
pp. 276-278
Author(s):  
C. Yi ◽  
S.‐H. Choi ◽  
M. Kim

2020 ◽  
pp. 2-5
Author(s):  
János Ladvánszky

An efficient way of noise reduction has been presented: A modified Costas loop called as Masterpiece. The basic version of the Costas loop has been developed for SSB SC demodulation, but the same circuit can be applied for QAM demodulation as well. Noise sensitivity of the basic version has been decreased. One trick is the transformation of the real channel input into complex signal, the other one is the application of our folding algorithm. The result is that the Masterpiece provides a 4QAM symbol error rate (SER) of 6*10-4 for input signal to noise ratio (SNR) of -1 dB. In this paper, an improved version of the original Masterpiece is introduced. The complex channel input signal is normalized, and rotational average is applied. The 4QAM result is SER of 3*10-4 for SNR of -1 dB. At SNR of 0 dB, the improved version produces 100 times better SER than that the original Costas loop does.


2019 ◽  
Vol 52 (16) ◽  
pp. 31-35
Author(s):  
N.V. Kuznetsov ◽  
M.V. Blagov ◽  
E.V. Kudryashova ◽  
J. Ladvanszky ◽  
M.V. Yuldashev ◽  
...  

2018 ◽  
Vol 57 (08) ◽  
pp. 1
Author(s):  
Haijun Zhou ◽  
Zunzhen Zhu ◽  
Weilin Xie ◽  
Yi Dong

Author(s):  
Yogesh Chandra Tripathi ◽  
◽  
Naveen Chandra Arya ◽  
Gaurav Singh Negi ◽  
Lalit Singh Garia ◽  
...  
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