本文介绍了擦地角为0°～8°时对海面杂波后向散射的测量结果。在对E—3A海上雷达(S波段,水平极化,窄脉冲)鉴定试验期间,记录了海面杂波数据。在79年11月至80年5月期间,几乎记录了20亿个距离门幅度。删去了判断为系统动态范围以外的数椐和混杂进地面杂波的数据。记录了平静海面至具有40节风速的五级海面状态的条件。海面的真实情况由国家海洋和大气管理局(NOAA)气象浮标通过卫星通信线路每小时报告一次。风速由浮标和用作试验的目标舰操纵员报告。通过将杂波回波与已测得截面的两面角反射器的回波加以比较来确定绝对后向散射电平。系统增益在各次飞行之间的变化不超过2分贝,因此,允许对所有的数据进行可靠的比较。 This article describes the measurement results of backscattering of sea clutter when the grit angle is 0 ° ~ 8 °. Sea clutter data were recorded during the E-3A maritime radar (S band, horizontal polarization, narrow pulse) qualification test. Between November 79 and May 1980, almost 2 billion distance gates were recorded. Delete the data judged to be outside the system dynamic range and mixed into the ground clutter. The condition of a calm sea surface to a state of sea level five with a wind speed of 40 knots is recorded. The true state of the sea is reported hourly by the National Oceanic and Atmospheric Administration (NOAA) meteorological buoys over satellite communications lines. Wind speed is reported by the buoy and the target ship operator used for the test. The absolute backscatter level is determined by comparing the clutter echo with the echo of the dihedral corner reflector of the measured cross section. The system gain does not vary by more than 2 dB between flights, thus allowing a reliable comparison of all the data.