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Digital multi-beam array emission multichannel consistency calibration equipment and method

A digital multi-beam, multi-channel technology, applied in the field of signal calibration, can solve problems such as digital multi-beam array calibration, and achieve the effect of guaranteeing time delay

Pending Publication Date: 2021-01-05
NO 54 INST OF CHINA ELECTRONICS SCI & TECH GRP
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Problems solved by technology

[0004] However, there are no such mature products in China at present, and related products cannot perform comprehensive and accurate calibration on the multi-channel consistency of digital multi-beam array transmission. The school's calibration equipment is particularly important

Method used

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  • Digital multi-beam array emission multichannel consistency calibration equipment and method
  • Digital multi-beam array emission multichannel consistency calibration equipment and method
  • Digital multi-beam array emission multichannel consistency calibration equipment and method

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Embodiment Construction

[0035] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0036] A digital multi-beam array transmitting multi-channel consistent calibration equipment, including transmitting components, array antenna, signal distribution network, constant temperature channel equipment, calibration receiving equipment, constant temperature reference source and upper computer software; wherein:

[0037] The transmitting assembly of the embodiment of the present invention includes 625 transmitting modules, which are used to generate 625 transmission signals and output them to the array antenna; and are also used to traverse and adjust the time delay, Signal characteristic values ​​such as phase and amplitude, so that the signal characteristic values ​​of all transmitted signals are consistent with the signal characteristic values ​​of the reference signal; the array antenna is used to combine the beams of 625 transmission signals deli...

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Abstract

The invention relates to a digital multi-beam array emission multichannel consistency calibration device and method, and belongs to the technical field of signal calibration. The device comprises a transmitting assembly, an array antenna, a signal distribution network, constant-temperature channel equipment, calibration receiving equipment, a constant-temperature reference source and upper computer software. The device is simple and practical, the technical state is stable and reliable, comprehensive and accurate calibration can be performed on the consistency of multiple channels transmittedby the digital multi-beam array, and the blank in the field is filled. Meanwhile, a constant-temperature reference channel technology is adopted, so that the calibration precision of transmitted signals is greatly improved.

Description

technical field [0001] The invention relates to the technical field of signal calibration, in particular to a digital multi-beam array transmitting multi-channel consistency calibration device and method. Background technique [0002] Transmitting multi-channel consistency is the premise of the digital multi-beam array system to realize transmitting combined beams, which is directly related to the pointing accuracy of the beam forming and the stability of the system ranging. The digital multi-beam array is a multi-channel system, and the terminals, channels, feeders, and array elements between different channels cannot be completely consistent, resulting in inconsistencies in the time delay, phase and amplitude of transmitted signals between different channels. The delay error will affect the ranging accuracy of the system, and the phase and amplitude errors will affect the beam synthesis. [0003] Digital multi-beam array transmission multi-channel consistency calibration ...

Claims

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Application Information

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IPC IPC(8): H04B17/11H04B17/12
CPCH04B17/11H04B17/12
Inventor 连洁李绅王向昆郝青儒尹继凯赵胜魏亮赵亚茹
Owner NO 54 INST OF CHINA ELECTRONICS SCI & TECH GRP
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