A Radar Active Signal Source
A signal source and active technology, applied in the field of radar signal source, can solve problems such as inability to fully simulate radar combat scenarios
Active Publication Date: 2022-02-08
南京雷电信息技术有限公司
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Problems solved by technology
Based on the above new radar technical requirements, traditional radar signal sources in the laboratory environment can no longer completely simulate radar combat scenarios and evaluate radar combat capabilities
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[0033] The technical solutions of the present invention will be described in detail below with reference to the accompanying drawings, but the protection scope of the present invention is not limited to the embodiments.
[0034] like figure 1 The radar active signal source shown is composed of a down-conversion unit, an intermediate frequency signal processing unit, a frequency synthesis unit, and an up-conversion unit. All units are placed in a non-standard 4U CPCI chassis. Down-conversion unit: Receives the radio frequency signal emitted by the radar, and performs down-conversion and power conversion on the radio frequency signal, down-converts the radio frequency signal to the working frequency range of the intermediate frequency signal processing unit, and outputs the converted signal to the intermediate frequency signal processing unit. Intermediate frequency signal processing unit: the core component used to generate various target, interference and radiation source targ...
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In the radar active signal source disclosed by the invention, the frequency synthesis unit is used for generating down-conversion local oscillator signals, up-conversion local oscillator signals and reference clock signals; the down-conversion unit is used for receiving radio frequency signals and down-conversion local oscillator signals output by the frequency synthesis unit , perform down-conversion and power conversion on the radio frequency signal, and output the intermediate-frequency signal to the intermediate-frequency signal processing unit; the intermediate-frequency signal processing unit is used to receive the intermediate-frequency signal output by the down-conversion unit and the reference clock signal output by the frequency synthesis unit, digitally modulate the signal and The modulated signal is output to the up-conversion unit; the up-conversion unit is used to receive the signal output by the intermediate frequency signal processing unit and the up-converted local oscillator signal output by the frequency synthesis unit, and mix and up-convert the signal to X / Ku band, Ka band, and output the signal according to the required amplitude. The invention integrates the functions of coherent and non-coherent radar signal simulation of multi-band and complex moving target signals.
Description
technical field [0001] The invention relates to the technical field of radar signal sources, in particular to a radar active signal source. Background technique [0002] As an important device for military avionics detection and positioning, radar plays an important role in reconnaissance, positioning, tracking, and guiding operations in the military. The current radar has many technical systems and working modes, and the movement patterns of the detected target signals are complex and changeable. It can identify various interference signals and can work across bands in a complex electromagnetic environment. Based on the above new radar technical requirements, traditional radar signal sources in the laboratory environment can no longer completely simulate radar combat scenarios and evaluate radar combat capabilities. Contents of the invention [0003] Purpose of the invention: The purpose of the present invention is to address the deficiencies in the prior art and provide...
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IPC IPC(8): G01S7/40
CPCG01S7/40
Inventor 张建华袁鼎张家祯刘宇航吴礼华
Owner 南京雷电信息技术有限公司