CAJ | 학술논문

为了有效对抗等离子体隐身目标,采用Z变换时域有限差分法,结合实际情况,选取等离子体中电子密度分布为双曲函数分布,对不同太赫兹频率、不同电子碰撞频率下太赫兹波在非均匀等离子体中的传播情况进行了数值研究.数值计算结果表明,等离子体对太赫兹波没有吸收效应,说明太赫兹波能有效穿透等离子体层.
위료유효대항등리자체은신목표,채용Z변환시역유한차분법,결합실제정황,선취등리자체중전자밀도분포위쌍곡함수분포,대불동태혁자빈솔、불동전자팽당빈솔하태혁자파재비균균등리자체중적전파정황진행료수치연구.수치계산결과표명,등리자체대태혁자파몰유흡수효응,설명태혁자파능유효천투등리자체층.
For purpose of coping effectively with the plasma stealth target,this paper focuses on the numeri-cally study of THz wave propagation in an inhomogeneous plasma, in terms of various THz frequencies and elec-tron collision frequencies, by using the method of Z transform finite-difference in time-domain, and taking the hy-perbolic function distribution as the electron density distribution in plasma in terms of the real cases. Numerical calculation results indicate that the plasma has no absorption effect on THz wave, which accounts for the THz wave could penetrate effectively the plasma layer.