Air-sounding system processing device for Beidou navigation

Abstract

The invention discloses an air-sounding system processing device for Beidou navigation, and the device comprises the following modules in sequential connection: a seven-element array antenna, a simulation down-conversion processing board, and an adaptive digital wave beam forming processing board. The seven-element array antenna transmits a received sonde radio-frequency signal to the simulation down-conversion processing board, and the simulation down-conversion processing board processes the sonde radio-frequency signal, converts the sonde radio-frequency signal into an analog intermediate frequency signal, and transmits the analog intermediate frequency signal to the adaptive digital wave beam forming processing board. The adaptive digital wave beam forming processing board carries out the interference inhibition of the analog intermediate frequency signal, and outputs the signal for the analysis of a sonde signal. The device provided by the invention irons out defects that the signals of only one sonde can be processed at the same time in the prior art and the interference resisting function cannot be achieved. The device guarantees that wave beam width meets the requirement that the lateral precision is three degrees.

Description

technical field [0001] The invention relates to the technical field of radar detection, in particular to a sounding system processing device for Beidou navigation. Background technique [0002] The weather radar sounding system is used to detect the ball-borne radiosonde, receive the radiosonde signal, and perform direction finding and tracking of the radiosonde. At the same time, due to the increasingly complex electromagnetic environment of the sounding, it brings great challenges to the detection performance of the ground-facing radiosondes. [0003] At this stage, Beidou navigation needs to use radar to send signals, and the signals need to be transmitted and processed. However, the current beam switching technology uses beam switching antennas, generally composed of 7 beam antennas, 6 horizontal beam antennas with an angle of 60°, and one beam at the zenith, so it is usually not large. [0004] Generally at work, for an instrument, among many antennas, only one beam a...

AI Technical Summary

Problems solved by technology

However, this technology can only process one instrument at the same time, and cannot realize the anti-interference function, which is not conducive to popularization and application.

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