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A returnable aircraft trajectory measurement and communication device based on Beidou short message

A Beidou short message and communication device technology, which is applied in the field of returnable satellite trajectory measurement and forecasting devices, can solve the problems of interruption of positioning and short message communication functions, lack of position and speed prediction functions, and inability to continuously provide services, etc. Achieve the effect of improving the reliability of on-orbit flight, improving the ability of independent controllability, and high reliability

Active Publication Date: 2022-07-05
SPACE STAR TECH CO LTD
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  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This single-antenna design can easily cause the antenna to be blocked by the device body or the installation carrier during the attitude change process, resulting in the interruption of RNSS and RDSS signals, the interruption of positioning and short message communication functions, and the inability to continuously provide services. , speed forecast function

Method used

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  • A returnable aircraft trajectory measurement and communication device based on Beidou short message
  • A returnable aircraft trajectory measurement and communication device based on Beidou short message

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Embodiment

[0093] like figure 1 Shown: the track measurement and communication device of the returning aircraft of the present invention includes an integrated antenna, a multi-channel antenna radio frequency processing unit, an RN / RD integrated unit and an analytical method orbit prediction unit.

[0094] The integrated antenna receives BDS system S2C frequency short message signal, B1C navigation signal, GPSL1 navigation signal, converts the wireless navigation signal into electrical signal, and forwards it to the multi-channel antenna RF processing unit. The multi-channel antenna RF processing unit can complete up to 3 channels of RN / RD RF signal filtering, amplification, down-conversion, AD conversion processing, output digital intermediate frequency signal to RN / RD integrated unit, RN / RD integrated unit completes RN signal capture and tracking, BDS and GPS navigation message analysis, calculation The position and speed of the satellite are obtained, the channel measurement is obtai...

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Abstract

The invention relates to a return aircraft trajectory measurement and communication device based on Beidou short messages, belonging to the technical field of satellite navigation and communication. The device integrates an integrated antenna, a multi-antenna radio frequency processing unit, an RN / RD integrated unit and an analytical method. The orbit prediction unit, in order to meet the requirements of miniaturization, high dynamics, and high rotation of the returning aircraft, integrates the input signals of the multi-channel integrated antennas, which can not only reduce the number of back-end hardware modules, but also ensure that the RNSS and the The RDSS signal is continuously visible, while saving the cabin space of the returner; the analytical orbit prediction unit can use more measurement data to determine the forecast data in a certain range with the known position and velocity of the returner; RNSS and RDSS are used. The integrated design scheme sends the RNSS positioning and forecast data to the RDSS module through the internal bus interface, and the latter sends the inbound information to the ground recovery system through the Beidou short message system after Doppler compensation.

Description

technical field [0001] The invention relates to a return-type satellite trajectory measurement and prediction device integrating an integrated antenna, a multi-antenna radio frequency processing unit, an RN / RD integrated unit and an analytical method orbit prediction unit, belonging to the technical field of satellite navigation and communication. Background technique [0002] In 2010, after the "Halabusa" probe completed its scheduled mission, it began to return to the earth with the return capsule. When the "Hyabusa" return capsule entered the earth's atmosphere, the space agency used the ground radar system to immediately track the return capsule and detect it. It takes pictures, and then the test personnel who take the helicopter to observe in the air track and observe the pre-set fall trajectory of the return capsule. After the return capsule successfully landed at the expected range, the positioning equipment carried inside it confirmed the current landing position and...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W4/029H04W4/02H04W4/14H04L69/22H04B7/185
CPCH04W4/029H04W4/025H04W4/14H04L69/22H04B7/1851H04B7/18513Y02D30/70
Inventor 李向宇刘宪阳丁勇郭楠李宏刚程长
Owner SPACE STAR TECH CO LTD
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