Title :
Study of Multi-channel Signal Source Based on FPGA
Author :
Ai Jia ; Li Dong ; Wang Yanlin
Author_Institution :
Sch. of Photoelectron., Beijing Inf. Sci. & Technol. Univ., Beijing, China
Abstract :
Studying on the structure and function of signal source, combined with the features of the current signal source and the needs for multi-channel signal source, a design of a multi-channel signal source is given in this paper. It is realized by the integrated DDS circuit in the FPGA chip, high-speed DA conversion chip, amplifying circuit and filter circuit etc. It has been proved that it can generate standard sin signal which has adjustable frequency, amplitude and phase. The frequency range is 0~125M Hz, amplitude resolution 0.1V and phase resolution π/512.
Keywords :
VHF amplifiers; VHF filters; digital-analogue conversion; direct digital synthesis; field programmable gate arrays; signal generators; signal sources; FPGA chip; amplifying circuit; amplitude resolution; filter circuit; frequency 0 MHz to 125 MHz; high-speed DA conversion chip; integrated DDS circuit; multichannel current signal source; phase resolution; standard sin signal generation; voltage 0.1 V; Field programmable gate arrays; Frequency control; Frequency measurement; Indexes; Read only memory; Signal generators; Signal resolution; DDS; FPGA; multi-channel; sinal source;
Conference_Titel :
Instrumentation, Measurement, Computer, Communication and Control (IMCCC), 2012 Second International Conference on
Conference_Location :
Harbin
Print_ISBN :
978-1-4673-5034-1
DOI :
10.1109/IMCCC.2012.306
