Analysis of Noise Characteristics of Multichannel Systems of the Formation of Signals of Georadars with Synthesized Aperture

Figure 12

SPD of the phase noises of a hybrid frequency synthesizer with a DDS as a support oscillator of the PLL and ACPD for output frequencies of 500 MHz (n₁= 1, n₂= 6, N = 2, N₂ = 1, = 0,25, and = 1,95), 2000 MHz (n₁= 1, n₂= 6, N = 8, N₂ = 1, = 0,25, and = 1,95), and 3500 MHz (n₁= 1, n₂= 6, N = 14, N₂ = 1, = 0,25, and = 1,95).