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Amplitude-phase correction device of digital T/R modules of phased array radar and correction methods thereof

A phased array radar and calibration device technology, applied in radio wave measurement systems, instruments, etc., can solve problems such as the inability to eliminate the temperature drift error of electronic devices, reduce the working performance of digital T/R components, and the inability to ensure consistent working temperature, etc. , to achieve the effect of avoiding adverse effects, good consistency and long time consumption

Inactive Publication Date: 2018-11-30
JINGZHOU NANHU MACHINERY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The amplitude and phase calibration of conventional digital phased array radar requires the use of special instruments and equipment, manually connecting the calibration line and manually setting the instrument parameters. Due to the differences in the hardware channels of the calibration equipment, it is necessary to manually measure the error and correct the correction The results are compensated, not only the calibration efficiency is low, but it takes a long time, and the working temperature cannot be guaranteed to be consistent during the long calibration process, and the error caused by the temperature drift of the electronic device cannot be eliminated, which greatly affects the consistency of the radar array amplitude and phase. , seriously reducing the working performance of digital T / R components

Method used

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  • Amplitude-phase correction device of digital T/R modules of phased array radar and correction methods thereof
  • Amplitude-phase correction device of digital T/R modules of phased array radar and correction methods thereof
  • Amplitude-phase correction device of digital T/R modules of phased array radar and correction methods thereof

Examples

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Effect test

Embodiment 1

[0081]A phase-array radar digital T / R assembly amplitude-phase correction method, characterized in that it includes a transmitting amplitude-phase correction method and a receiving amplitude-phase correction method;

[0082] The transmission amplitude and phase correction methods specifically include:

[0083] Step 1), the operator operates the human-computer interaction interface of the monitoring computer 1 through the keyboard, mouse, and monitor, selects a correction option, such as: emission correction, automatic correction or manual correction, and obtains the operation of the display control software module of the human-computer interaction interface of the monitoring computer 1 Information is output to the command analysis module, and the command analysis software module is responsible for converting the operation information into byte-based control instructions, which are encoded by the data transmission software module and transmitted to the resource management comput...

Embodiment 2

[0093] A correction method for a phased array radar digital T / R assembly amplitude and phase correction device, characterized in that it includes a transmitting amplitude and phase correction method and a receiving amplitude and phase correction method;

[0094] The receiving amplitude and phase correction methods specifically include:

[0095] Step 1), the operator operates the human-computer interaction interface of the monitoring computer through the keyboard, mouse, and monitor, selects a correction option, for example: receiving correction, automatic correction or manual correction, and the display control software module of the human-computer interaction interface of the monitoring computer 1 obtains operation information , output to the command parsing software module, the command parsing software module is responsible for converting the operation information into a control instruction in bytes, and after being coded by the data transmission software module, it is transm...

Embodiment 3

[0104] The phased array radar digital T / R assembly amplitude and phase correction device of the present invention includes: a monitoring computer 1, a resource management computer 2, a frequency source 3, an array monitoring network 4, a digital T / R assembly 5 and a digital beam forming DBF extension 6; The above-mentioned devices are connected (see Figure 10). The connector between monitoring computer 1 and resource management computer 2 is RJ45 network interface A; the connector between resource management computer 2 and frequency source 3 and front monitoring network 4 is FC-A optical connector interface B; SMA analog connector D is Frequency source 3, front monitoring network 4, analog signal input interface of digital T / R component 5.

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Abstract

The invention relates to an amplitude-phase correction device of digital T / R modules of a phased array radar and correction methods thereof, and belongs to the technical field of amplitude-phase correction of the digital T / R modules. The amplitude-phase correction device is composed of a monitoring computer, a resource management computer, a frequency source and the like. The frequency source receives transmitting excitation coupling signals output by the digital T / R modules through array panel monitoring network. The monitoring computer sends amplitude-phase correction instructions to the frequency source and the digital T / R modules through the resource management computer and the array panel monitoring network, and the frequency source and a digital beam forming DBF extension receive correction data. Hardware of the frequency source includes a field-programmable gate array (FPGA) and a direct digital frequency synthesizer (DDS). 9 steps of the amplitude-phase transmitting correctionmethod and 8 steps of the amplitude-phase receiving correction method are adopted to realize automatic switching of frequency points and channels as well as automatic calculation of compensation values to generate the correction instructions, sub-millisecond correction reduces errors, the correction efficiency is high, the effect of temperature drift due to long time correction is avoided, and thehigh-efficiency operation of the digital T / R modules is ensured.

Description

technical field [0001] The invention relates to a phased array radar digital T / R component amplitude and phase correction device and a correction method thereof, belonging to the technical field of digital T / R component amplitude and phase correction. Background technique [0002] Digital T / R component is one of the key components of phased array radar. The amplitude and phase calibration of conventional digital phased array radar requires the use of special instruments and equipment, manual connection of calibration lines and manual setting of instrument parameters. Due to the differences in hardware channels of the calibration equipment, it is necessary to manually measure the error and correct the calibration after each amplitude and phase calibration. The results are compensated, not only the calibration efficiency is low, but it takes a long time, and the working temperature cannot be guaranteed to be consistent during the long calibration process, and the error caused ...

Claims

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Application Information

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IPC IPC(8): G01S7/40
CPCG01S7/4004
Inventor 杨柳王梅陈婷
Owner JINGZHOU NANHU MACHINERY CO LTD
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