A measurement and control communication method for a deep space probe and a measurement and control communication system for a deep space probe

Abstract

The invention provides a measurement and control communication method for a deep space probe and a measurement and control communication system for a deep space probe. The method is used for achieving information interaction between an earth station and a deep space probe and measurement of a probe track. The method comprises following steps. Four microwave radio signal channels are disposed between the deep space probe and the earth station by using an uplink carrier frequency and a downlink carrier frequency and comprise a telecontrol instruction channel, a telemetry data channel, a scientific data channel, and a VLBI track measurement beacon channel. Three channel signals including engineering telemetry data, scientific probing data, and VLBI track measurement beacon are combined into a downlink transmission signal. Finally, a transmitter is used to complete a transmitting function of all downlink transmission signals. A track measurement beacon is generated by using a frequency standard signal of a high-stability frequency source and is transmitted to an earth VLBI measuring network. Using a Doppler frequency speed measurement and signal interference angle measurement manner, the earth VLBI measuring network completes the track measurement tack of the deep space probe.

Description

technical field [0001] The invention relates to the technical field of aerospace engineering, is specifically applied to deep space probes or aerospace vehicles, and particularly relates to a measurement and control communication system and method for deep space probes. Background technique [0002] Since the existing technology to realize the measurement and control communication between the ground station and the deep space detector is to install a measurement and control transponder on the detector plus a data transmission transmitter and a beacon transmitter, such a system structure realizes the telemetry of the ground to the detector platform. The exchange of remote control data, the downloading of payload scientific detection data, and the detection of detector orbits ensure that the ground can monitor and control the working status of deep space detectors and obtain scientific detection data. [0003] Such as figure 1 As shown, the existing technology can be used in ...

AI Technical Summary

Problems solved by technology

[0004] However, the main disadvantages of the above-mentioned measurement and control communication system for deep space probes are: (1). High technical complexity and difficulty in developing spaceborne equipment; (2). The downlink channel occupies multiple carrier frequencies, and the radio frequency resource overhead is large ; (3). The detector resources are required to be too large, thus compressing the available resources of the detection load

[0005] The measurement and control communication system of the prior art uses three kinds of downlink transmitters: the telemetry data transmitter (included in the measurement and control transponder), the data transmission transmitter, and the VLBI beacon transmitter, which are all realized by independent equipment, With the same module composition and circuit form, it takes up more detector resources

In addition, in addition to the remote control data reception and demodulation function, the measurement and control transponder also includes functions such as coherent generation of uplink and downlink carriers and regeneration and forwarding of ranging signals, which makes the development of equipment more difficult.

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