The block diagram of the hybrid frequency synthesizer with DDS as a frequency divider in the feedback loop of the PLL.

The block diagram of the hybrid frequency synthesizer with DDS as a frequency divider in the feedback loop of the PLL.

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The noise characteristics of multichannel systems of forming signals based on hybrid frequency synthesizers with automatic compensation of phase distortions of direct digital synthesizers, which are used in the composition of georadars with synthesized aperture, are investigated. It is established that the phase noise of the output signals of the f...

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