yuan xue-lin, liang bu-ge, l bo, et al. High-power and high-stability pulser for ground penetrating radar[J]. High Power Laser and Particle Beams, 2007, 19.
Citation:
yuan xue-lin, liang bu-ge, l bo, et al. High-power and high-stability pulser for ground penetrating radar[J]. High Power Laser and Particle Beams, 2007, 19.
yuan xue-lin, liang bu-ge, l bo, et al. High-power and high-stability pulser for ground penetrating radar[J]. High Power Laser and Particle Beams, 2007, 19.
Citation:
yuan xue-lin, liang bu-ge, l bo, et al. High-power and high-stability pulser for ground penetrating radar[J]. High Power Laser and Particle Beams, 2007, 19.
The action distance and detection precision of ground penetrating radar(GPR) is directly restricted by the power and stability of its pulser. The stability of the pulser based on avalanche dynatron is good, and it is propitious to improve the detection precision of GPR, but its peak-voltage is lower. In order to increase the output peak voltage of pulser, Marx circuit is used, and its structure is designed for strict comb PCB(printed circuit board) layout. Finally, for a practical GPR, a pulser is designed with 12-stage Marx circuit. The test results are that its peak voltage is higher than 400 V, the pulse width is 600 ps, the repetition frequency is higher than 25 kHz, both the pulse width jitter and the peak voltage jitter are less than 1%.
DownLoad: