Title :
Generator of band test signal based on synchronous amplitude manipulation
Author_Institution :
Inst. of Biomed. & Meas. Eng., Wroclaw Univ. of Technol., Wrocław, Poland
Abstract :
An electronic circuit for the generation of a periodic band test signal is presented. The operating principle of the proposed circuit is based on synchronous manipulation of the amplitude of the carrier signal by a pseudorandom sequence that produces a signal of a wide spectrum around the carrier frequency. Synchronisation is obtained by deriving the binary modulating signal from a carrier frequency by means of a frequency divider. A control digital signal for synchronous sampling is also provided with a dedicated timing circuitry.
Keywords :
amplitude modulation; frequency dividers; random sequences; signal generators; synchronisation; timing circuits; band test signal generation; carrier frequency; frequency divider; pseudorandom sequence; synchronous amplitude manipulation; synchronous sampling; timing circuitry;
Journal_Title :
Electronics Letters
DOI :
10.1049/el.2010.1548
