Title :
Problems and technical aspects of creation of devices for the control and measuring parameters of wireless systems
Author :
Putilin, V.N. ; Zdorovtsev, S.V.
Author_Institution :
Belarusian State Univ. of Inf. & Radioelectron., Minsk, Belarus
Abstract :
The basic problems and problems of technical realization of the universal multipurpose device - a radio tester are considered. Experimental researches of a breadboard model of a radio tester have shown that for expansion of a dynamic range of the receiver and reception of phase noise a heterodyne at 100dB/Hz level on distance 10 KHz from carrier frequency use of two-loopback system PLL is necessary. In a digital part of a radio tester a quadrature demodulator on digital receiver AD6655 is used for digital filtration in a range of frequencies from 20 MHz to 1MHz with signal suppression in Nyquist strip to 100 dB.
Keywords :
demodulators; phase locked loops; phase noise; radio equipment; PLL; breadboard model; carrier frequency use; digital filtration; digital receiver; phase noise; quadrature demodulator; radio tester; wireless systems; Demodulation; Field programmable gate arrays; Filtration; Frequency synthesizers; Phase locked loops; Phase noise; Receivers;
Conference_Titel :
Microwave and Telecommunication Technology (CriMiCo), 2010 20th International Crimean Conference
Conference_Location :
Sevastopol
Print_ISBN :
978-1-4244-7184-3
DOI :
10.1109/CRMICO.2010.5632790
