CORRELATION FLUCTUATION METER Russian patent published in 2006 - IPC G01R29/26 G01R23/16 

FIELD: measurement technology.

SUBSTANCE: meter intends for measurement of quasi-harmonic radio signal fluctuation spectrum. Meter has correlation function meter provided with Fourier transform unit, tunable heterodyne embraced by automatic frequency control system, and two measurement channels. Any channel has stroboscopic converter, lower frequency filter and low noise lower frequency measuring amplifier. Identical formers of short pulses are introduced into the channels. Inputs of formers are connected with output of heterodyne. Input of automatic frequency control unit is connected with output of lower frequency filter of one channel. Output of one of short pulse former is connected directly with control input of stroboscopic converter of the same channel. Output of the other former is connected to control input of stroboscopic converter of the other channel through short-time delay unit.

EFFECT: improved sensitivity of meter; widened frequency range of tested signals.

2 cl, 1 dwg