Pulse Parabolic Equation Method for Loran-C ASF Prediction over Irregular Terrain
Pulse Parabolic Equation Method for Loran-C ASF Prediction over Irregular Terrain
复制标题
不规则地形Loran-C ASF预测的脉冲抛物方程法
DOI：
10.1109/lawp.2017.2778736
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发表时间：
2017
影响因子：
4.2
通讯作者：
Jing-Sheng Zhang
中科院分区：
文献类型：
--
作者：
Dan-dan Wang;Xiao-li Xi;Li-li Zhou;Yu-Rong Pu;Jing-Sheng Zhang
采用抛物线方程(PE)方法求解不规则地形下的罗兰-C附加二次因子(ASF)。基于分步傅立叶变换(SSFT)算法，该方法在数值上是有效的。将ASF结果与积分方程法和时域有限差分法的结果进行了比较。遵守了非常好的协议。PE方法的计算时间比其他两种方法少几个数量级。内存要求与IE相似，但比FDTD方法要少。
The parabolic equation (PE) method is employed to solve the Loran-C additional secondary factors (ASFs) over irregular terrain. Based on the split-step Fourier transform (SSFT) algorithm, the method has been proven to be numerically efficient. The ASF results are compared to those of the integral equation (IE) method and the finite-difference time-domain (FDTD) method. Very good agreements are observed. The computational time of the PE method is several orders less than that of the other two. The memory requirement is similar to the IE, and less than the FDTD method.