ULTRA-WIDE-BAND ALL-OPTICAL RADAR SYSTEM COVERING ALL WAVEBANDS

摘要

An ultra-wide-band all-optical radar system covering all wavebands comprises a signal transmitter (1), a transceiver module (2), and a signal receiver (3). The signal transmitter (1) comprises a mode-locked laser (1-1), a first dispersion module (1-2), a first optical coupler (1-3), a second optical coupler (1-4), a first optical filter (1-5), a second dispersion module (1-6), a second optical filter (1-7), a first adjustable time-delay module (1-8), a third optical coupler (1-9), an optical amplifier (1-10), and a first photoelectric detector (1-11). The transceiver module (2) comprises a waveband selection switch (2-1), a first electrical amplifier array (2-2), a T/R assembly array (2-3), an antenna array (2-4), and a second electrical amplifier array (2-5). The signal receiver (3) comprises a third optical filter (3-1), a second adjustable time-delay module (3-2), an electro-optical modulator (3-3), a third dispersion module (3-4), a second photoelectric detector (3-5), an analog-digital conversion module (3-6), and a signal processing module (3-7). The ultra-wide-band all-optical radar system has the advantages that the central frequency, the bandwidth and the time width of a bandwidth signal are continuously adjustable, has high phase parameters and high measurement precision.