Multi-target measurement and control ground station system

Abstract

The invention relates to a multi-target measurement and control ground station system. The system comprises a phased-array antenna subsystem, a receiving and demodulation subsystem and a data processing and monitoring subsystem; the phased-array antenna subsystem comprises an antenna feed module, a digital acquisition module and a digital beam forming module; the antenna feed module comprises a planar array antenna and a blind compensation linear array antenna; the digital acquisition module is used for carrying out power division, filtering, amplification, down-conversion and AD acquisition digitization on multiple paths of radio frequency signals; the digital beam forming module is used for receiving the multiple paths of digital target signals and performing digital beam forming, and each target correspondingly forms one digital beam signal; the receiving and demodulating subsystem comprises a plurality of receiving and demodulating modules and is used for receiving and demodulatingthe plurality of digital beam signals; and the data processing and monitoring subsystem is used for carrying out unified network time service and real-time monitoring on other equipment in the system. The measurement and control requirements of a plurality of large-airspace aircrafts and long-distance aerospace flight targets are met, the problems of cross-modulation and intermodulation interference and ENOB compression under the condition that a plurality of targets are located at different distances are solved, the time service precision is improved, and the system integration is improved.

Description

technical field [0001] The invention belongs to the field of communication, relates to multi-target remote measurement / measurement and control, and in particular relates to a multi-target measurement and control ground station system. Background technique [0002] With the rapid development of weapons and equipment and the improvement of the actual combat requirements of test tasks, the traditional single-engine single-engine target shooting test has changed to multi-machine cooperative formation and multi-engine confrontation test tasks. There is an increasingly urgent need for simultaneous multi-target tracking capabilities of telemetry systems. The telemetry system used in the flight test is a large airspace and broadband wireless transmission system, which has high requirements for link gain. At the same time, the equivalent radiation power of the airborne and missile-borne launch systems is limited by the transmit power and antenna aperture. It is limited to a small ran...

AI Technical Summary

Problems solved by technology

To increase the gain of an omnidirectional array antenna, the antenna area and the number of feed elements will increase exponentially. It is difficult to achieve a high-gain antenna in engineering, and the application range is greatly limited.

[0004] CN104459687A discloses a multi-target vehicle-mounted measurement and control system based on a flat-panel self-tracking antenna. The system uses a flat-panel antenna to correspond to a target through a flat-panel antenna, which belongs to the mechanical tracking mode. It is necessary to set a plurality of flat-panel correspondingly to realize multi-target tracking. In essence, multiple traditional mechanical tracking antennas are integrated into one chassis to achieve multi-target tracking, which does not meet the requirements of a single antenna for simultaneously tracking and receiving multiple target telemetry signals

Moreover, because the existing telemetry method adopts the IRIG-B code timing, there is a problem that the number of cable connections and the high-precision timing of the network will increase significantly with the increase in the number of devices.

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