Satellite communication system channel reuse method

Abstract

The invention provides a satellite communication system channel reuse method. Two signal transmission paths, which are respectively an I path and a Q path, are provided; the I path sends one continuous signal frame in each second, and the continuous signal frame structure comprises a frame head, an information frame, a Q path parameter frame and a verification frame; a Q path information rate is determined by the Q path parameter frame in the I path, and a Q path signal frame structure comprises a frame head, a signal frame, a frame type and an ending frame; and after carrier wave modulation is carried out on digital signals of the I path and the Q path, merging emission is performed. According to the invention, the characteristics of in-phase orthogonal modulation are utilized, the signals of the I path and the Q path respectively transmit two paths of data, and a continuous business concurrent reuse channel or a continuous business and burst business concurrent reuse channel is realized; in addition, if the continuous business and the burst business are concurrent, the burst mode is adopted by the signals of one path, the path is of a time division multiplexing type, and other information can be burst, so that the utilization rate of channel resources is further improved.

Description

【Technical field】 [0001] The invention relates to the field of satellite communication, in particular to a channel multiplexing method for a satellite communication system. 【Background technique】 [0002] The invention relates to a satellite communication system, through which the signal transmission is completed. Among them, the services that need to occupy channel resources for a long time or even permanently in the satellite communication system are defined as continuous services, such as voice services, large text transmission services, and synchronous signaling between the satellite master station and the user station. The business that needs to occupy the channel resources for a short time is defined as a burst business, such as short message and channel application message. [0003] The current satellite communication system only implements multiple burst business time-division multiplexing channels, but for multiple continuous business concurrent or continuous busin...

AI Technical Summary

Problems solved by technology

[0003] The current satellite communication system only implements multiple burst business time-division multiplexing channels, but for multiple continuous business concurrent or continuous business and burst business concurrent, only the method of increasing the channel or increasing the channel bandwidth can ensure the concurrent transmission rate of business , it is impossible to realize channel multiplexing of multiple continuous services, continuous services and burst services concurrently

Images