SIGNAL CHARACTERISTIC FUNCTION ANALYZER Russian patent published in 2005 - IPC

FIELD: measurement technology.

SUBSTANCE: analyzer should be used for measurement of statistic characteristics of random phase of signal. Analyzer has two conversion channels. Each channel has the following units connected in series: linear frequency-modulated signal generator, amplitude modulator, dispersion delay line, and demodulator with band-pass filter, multiplier, integrator and registrar. Output of demodulator of the first channel is connected with second input of second channel's multiplier. Output of demodulator of the second channel is connected through phase shifter with second input of multiplier of the first channel. Inputs of analyzer are connected with inputs of amplitude modulators through dividers. Other inputs of dividers are connected with outputs of amplitude modulators through threshold units and modulated signal power meters. Input signal frequency meter is connected with second input of analyzer. Output of frequency meter is connected with permanent storage through address decoder. Output of permanent storage is connected with input of threshold voltage unit. Output of threshold voltage divider is connected with second inputs of threshold units of any channel. Analyzer allows controlling signal level at output of amplitude modulator depending on frequency of input signal of analyzer to prevent over-modulation.

EFFECT: improved precision of measurement.

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