Multi-aircraft configuration terminal for fast access to Beidou constellation phased array inter-satellite link

Abstract

The invention provides a multi-aircraft configuration terminal capable of being quickly accessed to a Big Dipper constellation phased-array inter-satellite link, which aims to provide a configuration terminal of small implementation technical difficulty and capable of being quickly accessed to multiple aircrafts. According to the technical scheme of the invention, an intermediate-frequency signals is sent to a dispreading unit by a signal channel unit. After the dispreading processing step, two parallel signals are respectively sent to a signal detection unit and a demodulation processing unit. The signal detection unit obtains a synchronization pulse signal consistent with a forward transmit signal of a Big Dipper II type constellation phased-array inter-satellite link in timing sequence. The demodulation processing unit outputs demodulated data and then sends the demodulated data to an information processing unit so as to distinguish a plurality of aircraft targets from each other. According to the synchronization pulse signal and the identification location information of the aircrafts, a signal generating unit generates an intermediate-frequency signal consistent with a returning reception signal of the Big Dipper II type constellation phased-array inter-satellite link in timing sequence and then sends the intermediate-frequency signal to the signal channel unit. In this way, the intermediate-frequency signal is converted into a radio frequency signal. The communication link between Big Dipper II type constellations is established.

Description

technical field [0001] The invention relates to a fast implementation method for multi-aircraft accessing the Beidou second-generation constellation phased array inter-satellite link system in the field of measurement and control communication. Background technique [0002] Through the inter-satellite link, the autonomous navigation of the Beidou satellite global system will be realized, the accuracy of orbit determination and timing service will be improved, and the dependence on ground station deployment will be reduced, and the operation and management cost of the system will be effectively reduced. At the same time, the communication function of the aircraft will be realized through the inter-satellite link . my country's second-generation Beidou constellation has the characteristics of a large number of satellites and global coverage, and will be used to support the navigation and data communication functions of various aircraft. The communication terminal is the core ...

AI Technical Summary

Problems solved by technology

Although this working method supports the access of a single aircraft to the second-generation BDS constellation phased array inter-satellite link system, multiple aircraft need to quickly access the BDS second-generation constellation phased array inter-satellite link system in turn, and multiple An aircraft cannot use the conventional code division multiple access (CDMA) or frequency division multiple access (FDMA) multi-target discrimination method. Therefore, how to quickly and orderly connect multiple aircraft to the phase control In the inter-satellite link, it is an urgent technical problem to be solved

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