Signal separation device based on synchronous clock

Jiayun Zou; Tao Liu

doi:10.1117/12.3033252

29 July 2024 Signal separation device based on synchronous clock

Jiayun Zou, Tao Liu

Proceedings Volume 13214, Fourth International Conference on Digital Signal and Computer Communications (DSCC 2024); 132140F (2024) https://doi.org/10.1117/12.3033252
Event: Fourth International Conference on Digital Signal and Computer Communications (DSCC 2024), 2024, Guangzhou, China

Abstract

This paper introduces a method based on synchronous clock, which realizes blind separation of two kinds of superposition signals by Fourier series analysis. The sampled signal is accelerated to FFT by FPU floating-point. Through Fourier series analysis, four different combinations of signals are determined according to the Fourier series expansion of sine wave signal and triangle wave signal. A 'and B' signals are separated by inverting the signal frequency according to the position of the fundamental frequency signal. The A 'signal obtained by separation is extracted through the software zero-crossing comparator to extract the square wave of the synchronization signal. According to the frequency and phase control information incoming from the serial port screen, the expression of the two signals is back-derived to change the output frequency of SI5351, and the two DAC outputs are synchronously triggered by DMA according to the synchronous square wave signal extracted by the software zero-crossing comparator output two separate signals to realize the stable same frequency display on the oscilloscope.

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Jiayun Zou and Tao Liu "Signal separation device based on synchronous clock", Proc. SPIE 13214, Fourth International Conference on Digital Signal and Computer Communications (DSCC 2024), 132140F (29 July 2024); https://doi.org/10.1117/12.3033252

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available

Members: $17.00

Non-members: $21.00 ADD TO CART

PROCEEDINGS
5 PAGES

DOWNLOAD PAPER SAVE TO MY LIBRARY

GET CITATION

RIGHTS & PERMISSIONS

Get copyright permission Get copyright permission on Copyright Marketplace

KEYWORDS

Tunable filters

Electronic filtering

Signal processing

Clocks

Digital filtering

Linear filtering

Analog to digital converters

Show All Keywords

Keywords/Phrases

Search In:

Publication Years