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Disturbance observation method based on ionosphere altimeter

An ionospheric altimeter and disturbance observation technology, used in radio wave measurement systems, radio wave reflection/re-radiation, instruments, etc., can solve problems such as offline analysis, and achieve the effect of improving accuracy and high practicability

Pending Publication Date: 2021-06-08
SOUTH CENTRAL UNIVERSITY FOR NATIONALITIES
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  • Description
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  • Application Information

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Problems solved by technology

Due to the functional limitations of the original system design, the high-precision Doppler high-frequency map can only be obtained after offline analysis

Method used

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  • Disturbance observation method based on ionosphere altimeter
  • Disturbance observation method based on ionosphere altimeter
  • Disturbance observation method based on ionosphere altimeter

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Embodiment

[0035] see Figure 1 to Figure 7 , is a schematic diagram of a disturbance observation method based on an ionospheric altimeter provided in the embodiment of the present application. A disturbance observation method based on an ionospheric altimeter, comprising the steps of:

[0036]Port initialization: monitor the system time and determine whether the time reaches the specified duration; generate data files: write control to the DDS board and RCVR board through the port, and start frequency scanning; system startup: start the DDS board to generate frequency signals, phase encoding and bi-phase modulation , run the pulse set, start the MCU, and transmit the coded pulse; timing acquisition: after 600us, stop transmitting the coded pulse, collect 140 or 170 groups of echo signals, and judge whether the pulse set has been run, and enter the next step when the operation is not completed, otherwise Re-start the system; data processing: real-time fast reading analysis, processing a...

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Abstract

The invention provides a disturbance observation method based on an ionosphere altimeter, and relates to the field of ionosphere disturbance observation. The disturbance observation method based on the ionospheric altimeter comprises the following steps of initializing a port, namely monitoring the system time and judging whether the time reaches a specified duration or not; generating a data file, namely writing the control to a DDS board and an RCVR board through the port, and starting frequency sweeping; starting the system, namely starting the DDS board to generate a frequency signal, performing phase coding and double-phase modulation, operating a pulse set, starting an MCU, and transmitting a coded pulse; and regularly collecting, namely after a certain time, stopping transmitting the coded pulse, acquiring 140 or 170 groups of echo signals, judging whether the pulse set is operated or not, entering the next step when the operation is not completed, and otherwise, carrying out the system starting step again. According to the present invention, a high-precision Doppler frequency height map can be obtained in real time, and ionosphere disturbance can be observed and analyzed conveniently.

Description

technical field [0001] The invention relates to the field of ionospheric disturbance observation, in particular to a disturbance observation method based on an ionospheric altimeter. Background technique [0002] Ionospheric vertical detection technology is an important means to observe and study ionospheric disturbances. In the early days, it was mainly based on frequency-altitude map traces and changes in false heights and critical frequencies to observe and analyze ionospheric disturbances. The development of digital altimeters has enabled the use of signal Doppler shift measurements made it possible to analyze ionospheric disturbances. [0003] The Doppler frequency shift observation of ionospheric high-frequency reflection echo is an important method to study ionospheric disturbance. It can be used to detect parameters such as the velocity of ionospheric reflection surface, so as to further study the movement and changes of ionosphere. Conventional digital altimeter ge...

Claims

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Application Information

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IPC IPC(8): G01S13/88G01S7/41
CPCG01S13/882G01S7/41
Inventor 朱正平蓝加平
Owner SOUTH CENTRAL UNIVERSITY FOR NATIONALITIES
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