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

Figure 10

SPD of the phase noises of a hybrid frequency synthesizer with a DDS as a reference oscillator of the PLL and ACPD for output frequencies of 500 MHz (n= 3, N = 5, = 0,333, and = 1,95), 2000 MHz (n = 3, N = 20, = 0,333, and = 1,95), and 3500 MHz (n = 3, N = 35, = 0,333, and = 1,95).