Institute of scientific instruments
Ing. Ivo Viscor (PhD student)
  • Department: Nuclear Magnetic Resonance
  • Team: Laboratory of electronic and signal processing
  • Interests:
Digital Receivers
ADC (Analog-to-Digital Converters), DDC (Digital Down Converters), DSP.
Matlab
Toolboxes for COM, LPT, GPIB and direct I/O control under Win95/98.
USB
Universal Serial Bus controllers, POSUSB driver, USBCheck tool.
Programmable logic & VHDL
Programmable logic ICs, VHDL, JTAG, ISP.
Papers:

05/01 Phase Noise Measurement .pdf (259k)
The analysis of the phase noise is presented. The phase fluctuation can be described of either standard deviation of the phase or time jitter or in detail as signal's spectrum. The digital receiver is proposed for the phase noise measurements. (Radioelektronika'01)
09/00 Two-channel digital receiver as a measurement unit .pdf (130k)
A digital receiver was proposed (AD6644, AD6620, ADSP2181). This paper discusses the critical hardware sections, the limiting system parameters and the first measurements. (Radioelektronika'00)
05/00 Gray counter in VHDL .pdf (96k)
This paper presents the simple structural description of the Gray counter with variable width in VHDL. (Student FEI 2000)
06/99 The digital receiver utilizing AD6620 for NMR ... /in Czech/ .pdf (127k)
This paper describes a new digital receiver unit using digital down converter AD6620. Some technical problems with utilizing this circuit are figured. (Sbornik studentu a doktorandu'99)
04/99 DSP and digital down conversion .pdf (73k)
The comparison of three single chip digital down converters (HSP50016, HSP50214, AD6620), their parameters, features and critical sections are presented. (Radioelektronika'99)
Tel Fax E-mail ICQ
(+420) 541 514 305
(+420) 541 514 404
ivovi(at)isibrno.cz
23037027
(30.3.2000)
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