每年出版 12 期
ISSN 打印: 0040-2508
ISSN 在线: 1943-6009
Indexed in
Modeling Millimeter and Centimeter Wavelength Fields over the Sea in the Analysis of Elevation Angle Estimation Methods for Low-Flying Aerial Targets
摘要
The paper touches on the problem of modeling millimeter and centimeter-wavelength fields over a rough sea surface in the case of grazing field incidence. Based on the analysis of published data, a field model has been developed, applicable to analyzing radar methods of elevation angle estimation for low-flying targets. An approach to selecting model parameters is justified, including the range distribution of diffuse reflections in the case of surface patch shadowing by wave crests. A correction method is suggested for the specific bistatic scattering ratio, such that estimates of the diffuse reflection factors can be reconciled with real measured data. The field model developed was used in computer simulation of elevation angle measurements by radar systems. The simulated results are close to those obtained in real sea measurements.