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A self-calibration method for transceiver channel of active phased array radar

A technology of phased array radar and sending and receiving channels, which is applied in the field of radar and measurement and control, and can solve the problems of long cycle, high cost, and the deviation between the initial parameters of the sending and receiving channels and the state at the factory.

Active Publication Date: 2017-01-11
CHANGZHOU NO 4 RADIO FACTORY
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Problems solved by technology

[0002] During the operation of the active phased array radar, many reasons need to use the online self-calibration method: after a long period of operation, due to the aging of the device itself and the influence of the environment, the initial parameters of the transceiver channel deviate from the factory state. Continuing to use the factory data as a reference will lead to a decrease in the performance of the radar and requires recalibration; if individual transceiver channels are damaged during operation, it is also necessary to accurately locate which channel is damaged in order to perform rapid maintenance
For the above problems, it is usually to send the radar back to the manufacturer for re-overhaul, which takes a long period of time and high cost, and the radar cannot be used during this period
[0003] Therefore, for the above-mentioned problems existing in related technologies, effective solutions have not yet been proposed

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  • A self-calibration method for transceiver channel of active phased array radar

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Embodiment Construction

[0025] The following and accompanying appendices illustrating the principles of the invention Figure 1 A detailed description of one or more embodiments of the invention is provided together. The invention is described in connection with such embodiments, but the invention is not limited to any embodiment. The scope of the invention is limited only by the claims and the invention encompasses numerous alternatives, modifications and equivalents. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. These details are provided for the purpose of example and the invention may be practiced according to the claims without some or all of these specific details.

[0026] The technical problem solved by the present invention is: Aiming at the deficiencies of the prior art, a self-calibration method of the transceiver channel of the active phased array radar is proposed, which can realize the onlin...

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Abstract

The invention discloses a self-calibration method for a receiving-transmitting channel of an active phased array radar. The self-calibration method for the receiving-transmitting channel of the active phased array radar uses an input-output signal coupling circuit and uses a multi-channel power dividing circuit to combine coupling signals of a plurality of receiving-transmitting channels into one channel. The self-calibration method for the receiving-transmitting channel of the active phased array radar realizes to independently calibrate each receiving-transmitting channel online without returning to depot and also plays a role of fault locating.

Description

technical field [0001] The invention relates to the field of radar and measurement and control, in particular to a self-calibration method for a transceiver channel of an active phased array radar. Background technique [0002] During the operation of the active phased array radar, many reasons need to use the online self-calibration method: after a long period of operation, due to the aging of the device itself and the influence of the environment, the initial parameters of the transceiver channel deviate from the factory state. Continuing to use the factory data as a reference will cause the performance of the radar to degrade and require recalibration; if individual transceiver channels are damaged during operation, it is also necessary to accurately locate which channel is damaged in order to perform rapid maintenance. For the above problems, usually the radar is sent back to the manufacturer for re-overhaul, which takes a long period of time and high cost, and the radar...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01S7/40
CPCG01S7/4004
Inventor 陈海清刘宇波
Owner CHANGZHOU NO 4 RADIO FACTORY
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