Method and device for extracting broadband error calibration parameters and computer-readable storage medium

A device for extracting broadband error calibration parameters, comprising a control module, a frequency band splitting module, a sub-band error extraction module and a broadband parameter synthesis module, wherein the control module comprising a memory, a processor, and a computer program stored on the memory and executable on the processor, and when executed by the processor, the computer program causes the following steps to be implemented:

• controlling the frequency band splitting module to perform frequency band splitting on link broadband signals of an ultra-wide band system according to a received frequency band index table to generate sub-bands;
• controlling the sub-band error extraction module to extract an amplitude error and a phase error of each sub-band;
• and
• controlling the broadband parameter synthesis module to iteratively weight and accumulate, according to the frequency band index table and a preset broadband weight table, the amplitude error and the phase error of each sub-band one by one to an initial amplitude error compensation parameter and an initial phase error compensation parameter respectively, to synthesize broadband error calibration parameters,
• wherein the computer program, when executed by the processor, further causes following steps to be implemented:
• parsing the received frequency band index table to obtain splitting parameters comprising a splitting range, a splitting step and sub-band frequency points for splitting positioning;
• and
• determining a splitting position in the splitting range according to the splitting step and the sub-band frequency points, and performing frequency band splitting on each link broadband signal of the ultra-wide band system one by one according to the splitting position to generate the sub-bands.

A method for extracting broadband error calibration parameters, comprising:

• performing frequency band splitting on link broadband signals of an ultra-wide band system according to a received frequency band index table to generate sub-bands;
• extracting an amplitude error and a phase error of each sub-band;
• and
• iteratively weighting and accumulating, according to the frequency band index table and a preset broadband weight table, the amplitude error and the phase error of each sub-band one by one to an initial amplitude error compensation parameter and an initial phase error compensation parameter respectively, to synthesize and extract broadband error calibration parameters,
• wherein the extracting the amplitude error and the phase error of each sub-band comprises:
• detecting a signal power and an image power of each sub-band one by one, and removing abnormal sub-bands from the sub-bands, so as to obtain valid sub-bands having a signal power greater than a first threshold and an image power less than a second threshold;
• and
• calculating an amplitude error and a phase error of each valid sub-band based on a preset algorithm.