高保持精度 GNSS 同步時鐘 (GNSSDO)應用簡介 請按此處下載 高保持精度 GNSS 同步時鐘 (GNSSDO) KStar 100 GNSS 馴服振盪器(一體化設計的頻率源及時間標準) 內置GNSS多系統接收模組及高穩OCXO鎖定模式下,頻率準確度 ≤±1E-12保持模式下,在24小時內及溫度變化少於20˚C時,時間穩定性 ≤±1.5us尺寸158 x...
GNSS Disciplined Oscillators (GNSSDO) with Excellent Holdover Stability KStar 100 GNSS Disciplined Oscillator (All-in-one ultra-stable OCXO based frequency and time standard)Synchronize to built-in multi-system GNSS receiver. Frequency accuracy ≤±1E-12 at GNSS locked. ...
Vectron GNSSDO NMEA 参考手册说明书 Vectron GNSSDO NMEA Reference Manual Rev. A, 07-27-18
伪卫星优化GNSS星座DOP分析 姜昆,王坚 (中国矿业大学国土环境与灾害监测国家测绘局重点实验室,江苏徐州221116) 5 摘要:针对伪卫星优化GNSS系统问题,详尽阐释了伪卫星的加入对星座系统DOP指标的影响,并进行了具体的公式推导。建立了DOP值关于方位角、高度角及时间历元的函数,阐释伪卫星优化GNSS系统的具体步骤并通过实测数...
It was found that the wettability of the solder was enhanced after the addition of Cu–GNSs, and the wetting angle was reduced up to 14.43%. While, the presence of Cu–GNSs could reduce the thickness of the intermetallic compound (IMC) layer and the size of IMC grain within the solder ...
南方漫步测地型GNSS接收机 极简简约大方 时尚科技匠心设计 仅重840g,高集成层叠式设计造就玲珑机身。镁合金时尚简约外观,底部开关按键,于细节处彰显匠心设计。 极准至快至准 一体化天线设计强抗干扰 采用高低频—体化成型天线设计,低剖面设计技术,缩小高、低频段物理差,提升相位一致性,应用频率选择性辐射机理,增强天...
高可靠性和高精度已成为徕卡GNSS的标志。徕卡测量系统在测量型GNSS上的多年技术经验为徕卡Viva GNSS奠定了基础,徕卡智能检核技术的运用保证了RTK作业的置信度优于99.99%。 组合灵活 Viva GNSS可提供全杆式或背包式流动站,无论架设在汽车、四驱摩托还是轮船上,是野外RTK基站,还是长期监测工程——只要是需要GNSS测量的...
have revolutionized the way we navigate and orient ourselves on Earth. These systems have become an integral part of our daily lives, from guiding us on road trips to helping us find our way during outdoor activities. But how do these systems work, and what are the six major GNSS systems...
Hemisphere GNSS is primarily known for its Outback brand. It includes the Outback Guidance autosteering solution (a smart antenna that combines a GNSS
卫星定轨是相对于卫星质量中心的,而在 GNSS 测量中,是相对于天线相位中心的, 所以要进行偏差改正。卫星天线相位中心偏差改正公式为: = 0 + −1 (3-1) 其改正文件以“.atx”为后缀名。此实验改正模型为ATX_08。 3.1.3 天线相位解缠 GNSS 卫星发射的是右旋极化的电磁波信号,接收机观测到的是相位...