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Channel error correction method, apparatus and device and storage medium

A channel error and channel technology, applied in the field of electronics, can solve the problems of not being able to independently compensate for multiple transceiver channels, not being able to compensate for amplitude errors, and meeting requirements, etc.

Active Publication Date: 2020-01-17
INST OF ELECTRONICS CHINESE ACAD OF SCI
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Problems solved by technology

Based on the current design and component level, it is difficult to achieve, so the classic phase compensation method cannot independently compensate multiple transceiver channels at the same time, and cannot guarantee that the distance index of each channel meets the requirements, and the classic phase compensation method can only adjust the phase of the channel The error is compensated, and the amplitude error cannot be compensated

Method used

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  • Channel error correction method, apparatus and device and storage medium
  • Channel error correction method, apparatus and device and storage medium
  • Channel error correction method, apparatus and device and storage medium

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Embodiment Construction

[0031] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application.

[0032] It should be understood that some embodiments described here are used to explain the technical solutions of the present application, and are not used to limit the protection scope of the present application.

[0033] This embodiment first provides a multi-channel multi-polarization SAR device, Figure 1A It is a schematic diagram of the composition and structure of the multi-channel multi-polarization SAR device of the embodiment of the present application, such as Figure 1A As shown, the multi-channel multi-polarization SAR device includes: a transmitting link and a multi-channel receiving link. Among them: transmission link: FM signal source generates FM signal, transmits H-polarized FM signal to the ground through microwave combination, drive amplifier 1 and wavegu...

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Abstract

The embodiment of the invention discloses a channel error correction method, apparatus and device and a storage medium. The method comprises the steps of: obtaining a first echo signal after a frequency modulation signal transmitted by a frequency modulation signal source passes through a target channel; determining a distance direction performance index of the first echo signal; when the range direction performance index does not meet the requirement, determining the first echo signal as a to-be-compensated echo signal; obtaining a corresponding error to be compensated from an error databaseaccording to the polarization direction of the target channel, the error to be compensated comprising a phase error and an amplitude error of a standard echo signal; and compensating the echo signal to be compensated by using the phase error and the amplitude error of the standard echo signal to obtain a compensated echo signal.

Description

technical field [0001] The embodiments of the present application relate to electronic technology, and relate to, but are not limited to, a method, device, device, and storage medium for correcting channel errors. Background technique [0002] When a multi-channel multi-polarization Synthetic Aperture Radar (SAR) system receives target echo signals, different errors will be introduced due to the different sending and receiving channels it passes through. [0003] Since there is currently no error compensation method for multi-channel multi-polarization SAR systems, the error compensation method of single-channel single-polarization SAR is generally used for reference in applications. However, the current classical compensation method for single-channel single-polarization SAR is only used to compensate the phase (subsequently referred to as the classical phase compensation method). The impact is acceptable; by comparing the echo signal of the recording and receiving channel...

Claims

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Application Information

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IPC IPC(8): G01S13/90G01S7/41
CPCG01S7/41
Inventor 岳海霞吕游
Owner INST OF ELECTRONICS CHINESE ACAD OF SCI
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