A high-efficiency dbf radar and its calibration method
A high-efficiency, radar-based technology, applied to instruments, measuring devices, and using re-radiation, can solve problems such as complex maintenance processes, time-consuming and labor-consuming, and wear and tear of radio frequency cables, and achieve simple results.
Active Publication Date: 2022-06-17
成都锐芯盛通电子科技有限公司
View PDF15 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
When the DBF radar works in a high and low temperature environment for a long time, the performance of electronic components may change, and some channels of the module may be abnormal / burned, or the RF cable may be worn out, which will lead to abnormal amplitude and phase of the channel, and it needs to be reset. Return to the factory for disassembly, replacement of RF cables (damage of RF cables), replacement of modules (damage of module channels), recalibration, and debugging of the whole machine
The entire maintenance process is quite complicated and requires the use of many related test equipment, such as network analyzers, various power supplies, drones and simulators, etc. The entire maintenance process is costly and time-consuming
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0069] The technical solutions of the present invention will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative efforts shall fall within the protection scope of the present invention.
[0070] Referring to the accompanying drawings, the present invention provides a technical solution:
[0071] In order to solve the complex problem of DBF radar calibration, in the design of phased array radar, on the basis of external calibration, an internal calibration link is specially designed, which is output from the frequency synthesizer to the antenna board, such as image 3 As shown, the antenna board is designed with multi-channel power division, one-point multi-channel (determined according to the channe...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention discloses a high-efficiency DBF radar and a calibration method. The calibration method includes: adding a receiving internal calibration link to the DBF radar hardware, including a frequency synthesizer, and adding a transmission channel to the frequency synthesizer. The channel It is specially used for receiving internal calibration; at the same time, add a multi-channel power divider on the antenna board, which is used for receiving internal calibration; at the software level, set the calibration software on the calibration host, the software Added the functions of receiving external calibration at the factory, receiving internal calibration at the factory, receiving internal calibration after the factory and generating external calibration after the factory. When the radar of the present invention has problems such as channel amplitude and phase changes, cable replacement, and module replacement, etc., the receiving internal calibration is directly performed on site, and then the receiving external calibration data is calculated and provided to the radar. This method is convenient and fast , easy to handle, no need to return to the factory for repair or replacement of components, and no need to return to the factory for recalibration.
Description
technical field [0001] The invention relates to the technical field of DBF radar maintenance and calibration, in particular to a high-efficiency DBF radar and a calibration method. Background technique [0002] Digital Beamforming (DBF: Digital Beam, Forming) refers to the realization of the transmit and receive beams of the antenna through digital methods. It forms flexible transmit and receive beam outputs by using digital signal processing technology at the baseband digital end. [0003] Antennas using this technology can generate multiple digital beams to track satellites, and are called "digital beamforming multi-beam antennas". It can be installed on the mobile earth station to realize uninterrupted communication with the satellite during the movement. Therefore, this technology is a key technology in mobile satellite communications and a key technology in smart antennas in 4G mobile communications. Digital beamforming technology is also widely used in the field of r...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): G01S17/02G01S7/40
CPCG01S17/02G01S7/4052
Inventor 郑建华林野蒲江曹磊
Owner 成都锐芯盛通电子科技有限公司