单台地基卫星导航接收机测量对流层斜延迟

Tropospheric slant delay measured by singular ground-based satellite navigation receiver

针对传统差分GPS技术和探空技术在监测对流层方面的局限性,如效率低、成本高、可移动性差等缺点,给出基于精密单点定位方法实现单台地基卫星导航接收机测量对流层斜延迟的方法。精密单点定位方法克服了传统方法的局限性。以单台地基GPS接收机的观测数据为例进行处理,获取对流层斜延迟,并与基于探空数据由射线描迹方法获得的对流层斜延迟进行对比。对比显示单站地基GPS接收机的测量结果与探空的结果大小相符,有很强的相关性,且相关系数都在0.99以上。结果表明:该方法是正确可行的。

The traditional difference GPS and radiosonde technique monitoring troposphere have some limits like,inefficiency,high cost and low removability. The method based on precise point positioning is presented in the paper,which can be used to obtain tropospheric slant delay from the singular ground-based GPS observations. Precise point positioning can not overcome these traditional limits. We compare the tropospherc slant delays from singular ground-based GPS observations with ray-tracing tropospheric slant del...