Channel error correction method, apparatus and device and storage medium

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...

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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

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