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- meteor trail radar 流星尾迹雷达
- The meteor trail echo is one of the main interferences and has to ho suppressed since it severely degrade the detection capability of high-frequency radar. 摘要流星余迹回波是高频雷达的主要干扰源之一,严重影响了雷达对目标的探测性能,必须加以抑制。
- The large gap in the single meteor trail corresponds to the time gap between the consecutive frames. 因为每帧画面之间会有时间空档,单颗流星的光迹中便留下了大大的间隔。
- Then a smart threshold is obtained from the minimum mean of different segments of background noise and used to detect the meteor trail echo. 再根据流星干扰的分布特点分段计算背景噪声均值,求取流星干扰检测门限;
- Finally the phase discontinuity of clutter from the meteor trail echo suppression is eliminated by substituting the data at echo positions with clatter. 最后用杂波信号来插值流星干扰位置上的数据,消除因去除干扰造成的杂波相位不连续。
- Oliver (1942,1948) has followed meteor trails to measure winds. 奥利弗(1942,1948)曾跟踪流星尾迹测量风。
- Oliver(1942, 1948)has followed meteor trails to measure winds. 奥利弗(1942,1948)曾跟踪流星尾迹测量风。
- An approach of suppressing meteor trail interference in over-the-horizon radar 天波超视距雷达抑制流星余迹干扰方法的研究
- meteor trail communication system 流星余迹通信系统
- Meteor Trail Communications System 流星余迹通信系统
- meteor trail communication channel 流星余迹通信信道
- Of course, the streaks are meteor trails from the annual Geminids meteor shower. 当然,这些轨迹是每年发生的双子座流星雨流星划过天空的轨迹。
- They picked up the yacht on their radar screen. 他们在雷达屏上看到了那艘游艇。
- The radar scanned the sky for enemy planes. 雷达密切监视天空,搜索敌机。
- The watchtower followed the aircraft by radar. 瞭望塔通过雷达追踪这架飞机的行踪。
- Meteor Trails Scattering and its Effects on Radar Systems Performance 流星余迹散射及其对雷达系统性能的影响
- The dogs found the trail of the rabbit. 猎狗发现了兔子的踪迹。
- Enemy ships were detected on the radar screen. 敌舰的影像已显现在雷达(屏幕)上。
- A meteor suddenly shot across the sky. 一颗流星急速掠过天空。
- The hounds found the trail of the fox. 猎犬发现了狐狸的踪迹。