5 results about "Ionospheric sounding" patented technology

The invention provides an ionosphere parameter and short wave frequency band prediction method and electronic equipment, and the method comprises the steps: obtaining the ionosphere parameter data in a corresponding IRI model above the midpoint of a great circle through obtaining the geographic coordinates of two places of a communication link and the midpoint of the great circle, obtaining the geomagnetic solar activity data of an open-source data website, and obtaining the geomagnetic solar activity data of the open-source data website; the method comprises the following steps: carrying out ionosphere oblique detection by using ionosphere detectors at two communication places, obtaining an ionosphere oblique detection ionogram, obtaining frequency band data available for short-wave communication from the oblique detection ionogram, carrying out data preprocessing, selecting different tasks, setting corresponding Transform-LSTM model hyper-parameters, carrying out model training, and storing optimal model parameters; and performing an ionosphere parameter prediction task or a short-wave communication available frequency band prediction task by using the corresponding model. The ionosphere detection data, the environment monitoring data and the like are fused in the deep learning field and the short-wave communication field, and the method has important significance and application prospects.

The invention relates to an ionosphere detection method and device. The method comprises the following steps: acquiring satellite observation data; performing quality detection on the satellite observation data and outputting a state file; judging whether the satellite observation data is qualified or not based on the state file; if the satellite observation data is qualified, performing data processing based on the satellite observation data to obtain first processing data; performing calculation based on the first processing data to obtain the ionized layer electron content; and outputting a display signal based on the satellite observation data and the ionized layer electron content. The method and the device have the effect of obtaining accurate ionosphere data.

The application discloses a method for estimating the elevation angle of a slant ionospheric sounding incoming wave based on polarization response, which comprises the following steps: obtaining the polarization response information of the incoming wave through an orthogonal receiving antenna, so as to determine the limit polarization of the incoming wave signal from the ionosphere into free space, and determining the direction of the incoming wave through the relationship between the limit polarization and the elevation angle of the incoming wave and the geomagnetic field. The method for estimating the elevation angle of the slant ionospheric sounding incoming wave based on polarization response can be applied to the acquisition of the elevation angle information of the incoming wave through the processing and estimation of the polarization information of the electromagnetic wave, and can also be used as an auxiliary means of the traditional short-wave direction finding method.

The application relates to the technical field of space environment detection, in particular to an ion generation and introduction device for planetary atmosphere and ionosphere detection. The ion generation and introduction device comprises a gas sampling assembly located at the top of an ionization chamber (3), symmetrically arranged electron emission and control assemblies located in the ionization chamber (3), an ionization chamber voltage regulation assembly located between the electron emission and control assemblies, and an ion extraction lens assembly located at the side of the ionization chamber (3). The ion generation and introduction device meets the requirement of ion generation and introduction device output ions for the measurement of neutral gas and ion isotope in the atmosphere and ionosphere of the earth and extraterrestrial planets and small celestial bodies, and has the ability to support subsequent high-precision and large-range mass resolution.

The invention discloses an iron resonance fluorescence laser radar temperature and wind speed inversion error analysis method, and belongs to the technical field of low ionosphere detection. According to the iron resonance fluorescence laser radar temperature and wind speed inversion error analysis method, an iron resonance fluorescence laser radar simulation model is constructed, and photon echo signals are simulated in combination with an NRLMSIS-00 atmosphere model and actually measured iron atom density data; analyzing the influence of laser frequency jitter and light quantum noise on the inversion precision by adopting a Monte Carlo method; then, the error performance of a frequency scanning method and the error performance of a three-frequency ratio method are compared, it is proved that the error of the frequency scanning method in temperature inversion is lower, and the iron resonance fluorescence laser radar temperature and wind speed inversion error analysis method can provide guidance for systematic error modeling and parameter design of an iron resonance fluorescence laser radar; and the accuracy of atmospheric temperature and wind speed inversion can be improved.