System for detecting atmospheric temperature and pressure profile of near space

Abstract

The invention discloses a system for detecting the atmospheric temperature and pressure profile of the near space. The system comprises a first precision orbit determination module and a microwave occultation signal transmitting module which are arranged on a transmitting satellite; a second precision orbit determination module and a microwave occultation signal receiving module which are arranged on a receiving satellite; and an atmospheric temperature and pressure profile inversion module which is arranged on an upper computer. The first precision orbit determination module is used for generating precision orbit determination observation data of a launching satellite; the microwave occultation signal transmitting module is used for generating and transmitting a microwave occultation signal, and is also used for transmitting precise orbit determination observation data of a transmitting satellite to the atmospheric temperature and pressure profile inversion module; the second precise orbit determination module is used for generating precise orbit determination observation data of a receiving satellite; the microwave occultation signal receiving module is used for receiving microwave occultation signals and processing the signals to obtain microwave occultation signal observed quantity; and the atmospheric temperature and pressure profile inversion module is used for performing inversion to obtain an atmospheric temperature and pressure profile.

Description

technical field [0001] The invention relates to the technical field of atmospheric detection, in particular to a detection system for atmospheric temperature and pressure profiles in adjacent spaces. Background technique [0002] With the development of aerospace technology, more and more aircraft systems are used in the near space (20km ~ 100km) environment, which puts forward higher requirements for near space atmospheric detection. At present, the near-space atmospheric detection data in the range of 60km-100km altitude is scarce, and there is a lack of effective detection means. [0003] GNSS occultation detection technology, comprehensively using radio occultation observation data and background atmospheric information, can retrieve the atmospheric temperature, humidity and pressure profiles from near the ground to 60km altitude. However, GNSS electromagnetic wave signals are mainly used for navigation and positioning, and their frequency is in the L-band (1-2GHz), whi...

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Problems solved by technology

However, the GNSS electromagnetic wave signal is mainly used for navigation and positioning, and its frequency is in the L-band (1-2GHz), which is significantly affected by the refraction of the ionosphere. Therefore, the GNSS occultation detection technology can retrieve the atmospheric parameters of the adjacent space in the altitude range of 35km-60km Relying heavily on background atmospheric information, it is impossible to retrieve the near-space atmosphere of 60km to 100km

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