Your browser does not support JavaScript!
http://iet.metastore.ingenta.com
1887

SNR comparison between two designs of PFM demodulator used to demodulate PFM or FM

SNR comparison between two designs of PFM demodulator used to demodulate PFM or FM

For access to this article, please select a purchase option:

Buy article PDF
£12.50
(plus tax if applicable)
Add to cart
Buy Knowledge Pack
10 articles for £75.00
(plus taxes if applicable)
Add to cart

IET members benefit from discounts to all IET publications and free access to E&T Magazine. If you are an IET member, log in to your account and the discounts will automatically be applied.

Learn more about IET membership 

Recommend Title Publication to library

You must fill out fields marked with: *

Librarian details
Name:*
Email:*
Your details
Name:*
Email:*
Department:*
Why are you recommending this title?
Select reason:
 
 
 
 
 
Electronics Letters — Recommend this title to your library

Thank you

Your recommendation has been sent to your librarian.

© The Institution of Electrical Engineers
Published

PFM demodulation which relies on the generation of one pulse per PFM signal period is compared with demodulation which generates two pulses per period. The dual pulse approach is shown to give an SNR advantage of up to 7 dB for the same input conditions, but the two methods give SNRs which converge when used to demodulate FM.

Inspec keywords: interference (signal); demodulation; frequency modulation; pulse frequency modulation

Other keywords: dual pulse approach; PFM demodulation; one pulse generation; pulse counting; FM demodulation; two pulse generation; pulse averaging; S/N ratio

Subjects: Modulation and coding methods

References

    1. 1)
      • Heatley, D.J.: `Video transmission in optical fibre local networks using pulse time modulation', Proceedings of 9th ECOC, September 1983, Geneva, p. 343–346.
    2. 2)
      • R.P. Webb . Output noise spectrum from demodulator in an optical PFM system. Electron. Lett. , 634 - 636
    3. 3)
      • M. Schwartz . (1980) , Information transmission, modulation and noise.
    4. 4)
      • P.F. Panter . (1965) , Modulation, noise and spectral analysis.
    5. 5)
      • Pophillat, L.: `Video transmission using a 1.3 μm LED and monomode fibre', Proceedings of 10th ECOC, September 1984, Stuttgart.
http://iet.metastore.ingenta.com/content/journals/10.1049/el_19850150
Loading

Related content

content/journals/10.1049/el_19850150
pub_keyword,iet_inspecKeyword,pub_concept
6
6
Loading
Print this page
This is a required field
Please enter a valid email address