Nine-channel spatial spectrum estimation super-resolution monitoring direction-finding fixed station system

Abstract

The invention discloses a nine-channel spatial spectrum estimation super-resolution monitoring direction-finding fixed station system, which is characterized by comprising a small biconical omnibearing monitoring antenna, a nine-unit direction-finding antenna array, two functional amplifiers, a monopole monitoring antenna, a nine-channel signal switching module, a filtering combiner, an amplifier module, a nine-channel receiver, a monitoring direct-finding controller, a digital signal processor (DSP) processing module, an embedded industrial personal computer, a global positioning system (GPS) antenna, a GPS module, a 3rd generation (3G) antenna, a 3G route, a power supply module, a continuous power supply module, a remote control unit and a switchboard which are shown in a figure in the specifications. The system has the advantage that: resolution and interception of a same-frequency multi-point transmitted signal can be solved. Coherent signals caused by a plurality of paths can be distinguished under a certain condition and can be widely applied to radio direction finding in a complex electromagnetic environment. A spatial spectrum system has high multipath effect resistance, high sensitivity, high monitoring and direction finding speeds and high accuracy, and can be used for quickly capturing various digital frequency hopping, frequency spreading and frequency hopping and spreading signals.

Description

technical field [0001] The invention relates to a nine-channel spatial spectrum estimation super-resolution monitoring direction finding fixed station system, which belongs to the technical field of radio monitoring. Background technique [0002] With the rapid development of the radio industry, radio spectrum resources are becoming increasingly scarce, and radio interference incidents are also increasing. It is becoming more and more important to find interference sources through radio direction finding. In practice, we found that multi-signal simultaneous monitoring and direction finding pose new challenges to radio monitoring and direction finding. For example, in radio management we often encounter situations where interrupted user communications are not allowed to be interrupted (such as communication navigation frequencies at airports, public communications), and where multiple base station transmitting equipment is used (such as paging, cellular public communication n...

AI Technical Summary

Problems solved by technology

For example, in radio management we often encounter situations where interrupted user communications are not allowed to be interrupted (such as communication navigation frequencies at airports, public communications), and where multiple base station transmitting equipment is used (such as paging, cellular public communication networks), and When multiple transmission signals appear at the same frequency at the same time, it is difficult for conventional direction finding technology to distinguish

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