FPGA based RF pulse generator for NQR/NMR spectrometer

被引:7
|
作者
Hemnani, Preeti [1 ,5 ]
Rajarajan, A. K. [2 ]
Joshi, Gopal [3 ]
Ravindranath, S. V. G. [4 ]
机构
[1] Bhabha Atom Res Ctr, Homi Bhaba Natl Inst, Bombay, Maharashtra, India
[2] Bhabha Atom Res Ctr, Div Solid State Phys, Bombay, Maharashtra, India
[3] Bhabha Atom Res Ctr, Accelerator Control Div, Bombay, Maharashtra, India
[4] Bhabha Atom Res Ctr, Atom & Mol Phys Div, Bombay, Maharashtra, India
[5] SIES Grad Sch Technol, Nerul, Navi Mumbai, India
关键词
FPGA; NQR; NMR; DDS;
D O I
10.1016/j.procs.2016.07.196
中图分类号
TP301 [理论、方法];
学科分类号
081202 ;
摘要
A FPGA based radio frequency source and pulse programmer for NQR is described. With the use of direct digital synthesis (DDS), the RF source has the ability to yield RF signal with short switching time and high resolution in frequency and phase. To facilitate the generation of RF pulses, pulse programmer implemented in FPGA, is also used as auxiliary controller of DDS. The pulse programmer controls the DDS to generate RF pulses according to predefined parameters. (C) 2016 The Authors. Published by Elsevier B.V.
引用
收藏
页码:161 / 168
页数:8
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