Dual mode laser pulse emission control and echo signal processing system
A laser pulse and echo signal technology, applied in the radio wave measurement system, using re-radiation, re-radiation of electromagnetic waves, etc., can solve the problem of not taking into account the detection distance of the far and near wind field, the inability to measure the wind field at close range, and the detection of large blind spots and other problems, to achieve the effect of reducing the short-distance detection blind zone
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[0013] refer to figure 1 . In a preferred embodiment described below, a dual-mode laser pulse emission control and echo signal processing system includes: In the laser wind radar system, through the optical fiber 8, a series of 1 fiber laser, acousto-optic Modulator 2 , pulse fiber amplifier 3 , optical antenna 4 , photodetector 5 , information processing module 6 connected in series via radio frequency cable 9 and central control computer 7 connected in series via bus 10 . The acousto-optic modulator 2 is connected in parallel with the information processing module 6 through the radio frequency cable 9, and after receiving the instruction from the central control computer 7, sends a modulation signal to the acousto-optic modulator 2, and the acousto-optic modulator 2 outputs a seed laser pulse corresponding to the modulation signal parameter, The seed laser pulse is then input into the pulse fiber amplifier 3 for power amplification output, the optical antenna 4 transmits an...
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