Detection the Ambiguity slip is key factor for position or attitude estimation of high dynamic SAR satellite using GPS. The ambiguity slip successfully can be detected by ionosphere remanet error of dual frequency.
周跳的检测是高动态卫星利用GPS系统进行定位或姿态测量的关键因素，利用双频电离层残差可以有效地实现周跳检测。
In order to take advantage of the P codes available on L1 and L2, we compute the difference between the receiver driven by external stable atomic clock and GPS time forms the ionosphere-free combination of the P1 and P2 codes as given by the 30-second RINEX observations files, the standard of the International GPS Service, and uses the satellite positions are deduced from the IGS final orbits. The procedure is tested using the Ashtech Z-XII3T geodetic receivers at UNSO.
为了利用 L1和 L2上获得 P 码观测的优点，以 P1和 P2 组合成消去电离层影响的观测值，利用采样率30秒的 RINEX （ Receiver Independent Exchange format ）格式的观测和 IGS 的精密轨道，计算了一外接有稳定的原子钟的 IGS 站与 GPS 时间的差，数据的处理是以在 USNO （ United States Naval Observatory ）站的 Ashtech Z-XII3T 测地型接收机收集的观测值。
The travel time of GPS satellite signals can be altered by atmospheric effects; when a GPS signal passes through the ionosphere and troposphere it is refracted, causing the speed of the signal to be different from the speed of a GPS signal in space.
全球定位系统卫星信号的传播时间可以改变大气的影响；当GPS信号通过电离层和对流层折射通过它，造成了信号的速度从一个在太空中的GPS信号的速度不同。
The fourth part of this paper discusses the WADGPS and studys the data processing of the WADGPS, of which satellite position error correction, satellite clock error correction, ionosphere error correction are discussed very detailedly.
论文的第四部分为广域差分GPS系统，研究了广域差分GPS系统的数据处理，重点讨论了卫星位置差分改正、卫星时钟差分改正、电离层延迟改正。
The Effects of Ionosphere Correlation Structure on Satellite Augmentation System in China
中国区域电离层相关结构对卫星增强系统的影响
Preliminary results of ionosphere research using geostationary satellite beacon
利用同步卫星信标研究电离层的初步结果
A radio wave that is reflected back to earth by the ionosphere or a communications satellite; permits transmission around the curve of the earth's surface.
通过电离层或通信卫星反射回地球的无线电波；通过这种方式能够传输过地球表面的弯曲部分。
The effect of the ionosphere and troposphere on satellite navigation signal delay is presented. The relative positioning and delay model correction algorithm for correcting the atmosphere effect are discussed. The method of dual-frequency observation correcting ionosphere delay error is analyzed in detail.
详细论述了电离层、对流层对卫星导航信号传播时延的影响，讨论了修正大气层时延影响的相对定位、延迟模型改正方法，详细分析了双频观测量电离层时延误差修正方法。
Ionosphere direct measurement satellite
电离层直接测量卫星
The research shows that in the China-Russia joint exploration of Mars, the electron density acquired from satellite-satellite IRO by dual frequencies will reach the unprecedented precision. The satellite-Earth IRO by single frequency can detect the electron density profile of Mars ionosphere in daytime.
研究表明，中俄联合火星探测中，星-星掩星双频探测得到的火星电离层电子密度，将会达到前所未有的测量精度；星-地掩星单频探测，可以有效获得白天火星电离层电子密度剖面。