Dual-band high-precision ranging aerospace ground system

A ground system, high-precision technology, applied in the field of aerospace communication measurement and control, can solve the problems of inapplicable detection process, inability to realize dual-band ranging, etc., and achieve the goal of adapting to large dynamic targets, improving reliability and usability, and increasing the degree of digitization Effect

Active Publication Date: 2019-05-17
NO 63921 UNIT OF PLA
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Problems solved by technology

[0004] The problem to be solved by the invention is that in the current ranging spaceflight ground system, the dual-band ranging cannot be realized, resulting in the problem that it cannot be applied to the detection process in a wider space

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  • Dual-band high-precision ranging aerospace ground system
  • Dual-band high-precision ranging aerospace ground system

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Embodiment Construction

[0022] Hereinafter, the present invention will be described in detail based on the drawings.

[0023] Such as figure 1 As shown, the present invention designs a dual-band high-precision ranging aerospace ground system, which mainly includes: ranging baseband 1, digital switch matrix 2, transmitting digital front-end 3, receiving digital front-end 4, S high-power amplifier 5, Ka uplink High stability channel 6, Ka high power amplifier 7, S field amplifier 8, Ka field amplifier 9, Ka downlink high stability channel 10, main antenna 11, zero calibration equipment.

[0024] The structure of the zero calibration equipment is as follows: figure 2 As shown, it mainly includes a bias feed antenna 12 , an S duplexer 13 , an S zero-calibration frequency converter 14 , a Ka duplexer 15 , and a Ka zero-calibration frequency converter 16 .

[0025] Among them, the high-precision ranging baseband 1 of the ground system is a pure digital high-precision digital baseband, which is composed ...

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Abstract

The invention relates to a dual-band high-precision ranging aerospace ground system. The dual-band high-precision ranging aerospace ground system comprises a ranging baseband (1), a digital switch matrix (2), a transmitting digital front end (3), a receiving digital front end (4), an S high-power amplifier (5), a Ka upgoing high-stability channel (6), a Ka high-power amplifier (7), an S-field amplifier (8), a Ka-field amplifier (9), a Ka downgoing high-stability channel (10), a main antenna (11) and a zero calibration device. The zero calibration device includes an offset antenna (12), an S duplexer (13), an S zero calibration frequency converter (14), a Ka duplexer (15) and a Ka zero calibration frequency converter (16). The dual-band high-precision ranging aerospace ground system can complete the precise bidirectional distance measurement for a satellite carrying a high-precision ranging transponder, can further be used for high-precision bidirectional distance measurement of other common aircraft, has the characteristics that the measurement precision is high, adaptability to target dynamics is large, no-fuzzy distance is long, anti-interference ability is high and the like, andis particularly suitable for high-precision measurement orbit of satellites or spacecraft.

Description

technical field [0001] The invention belongs to the technical field of aerospace communication measurement and control, and relates to a dual-band high-precision ranging aerospace ground system. Background technique [0002] Generally, in traditional measurement and control systems, the ranging random error and system error of the ground system are about 1 meter, and the orbit determination accuracy is on the order of tens or even hundreds of meters. With the development of space exploration, the demand for meter-level orbit determination has become a problem that must be solved for high-precision control and positioning of aircraft. [0003] However, in the current ranging aerospace ground system, it is impossible to achieve dual-band ranging, and can only achieve ranging in a single frequency band, resulting in a small range of use and low measurement accuracy, which cannot be applied to the detection process in a wider space. Contents of the invention [0004] The prob...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S11/02G01S19/03
Inventor 董光亮张国亭刘敏石善斌段旭冯林高
Owner NO 63921 UNIT OF PLA
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