Method and device for measuring electron density of ionized layer, detection equipment and storage medium

Abstract

The invention relates to the technical field of ionosphere electromagnetic environment detection, and discloses a method for measuring ionosphere electron density, which comprises the following steps: constructing an ionosphere model associated with an ionosphere D region and configuring initial conditions of the model; obtaining physical parameters associated with the ionosphere physical process under the initial condition of the model; wherein the physical parameters comprise an ion generation rate corresponding to a photochemical process and an ion generation rate and an ion loss rate corresponding to an ion chemical process; obtaining particle densities of different particle types according to the ion generation rate, the ion generation rate and the ion loss rate; and determining the electron density of the D region of the ionized layer according to the particle densities of different particle types. The method can accurately calculate the electron density of the D region of the ionosphere, and the accurate detection capability of the ionosphere electromagnetic environment is improved. The invention also discloses a device for measuring the electron density of the ionized layer, detection equipment and a storage medium.

Description

Technical Field

[0001] The present application relates to the technical field of ionospheric electromagnetic environment detection, for example, to a method and apparatus for measuring ionospheric electron density, detection equipment, and storage medium. Background Art

[0002] In the field of ionospheric electromagnetic environment detection, obtaining accurate and reliable ionospheric physical parameters is crucial for ionospheric electromagnetic environment research and radio communications. Currently, the electron density in the D region of the ionosphere is typically calculated based on empirical models.

[0003] However, the electron density in the D region of the ionosphere obtained through empirical model calculations is not accurate. Therefore, how to accurately calculate the electron density in the D region of the ionosphere and improve the ability to accurately detect the ionospheric electromagnetic environment has become a technical problem that needs to be solved urgently. Summary of the Invention

[0004] In order to provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. The summary is not an extensive review, nor is it intended to identify key / critical elements or delineate the scope of protection of these embodiments, but rather serves as a prelude to the detailed description that follows.

[0005] The embodiments of the present disclosure provide a method and apparatus, detection equipment, and storage medium for measuring ionospheric electron density, so as to accurately calculate the electron density in the D region of the ionosphere and enhance the ability to accurately detect the ionospheric electromagnetic environment.

[0006] In some embodiments, the method includes: constructing an ionospheric model associated with the ionospheric region D and configuring the initial conditions of the model; obtaining physical parameters associated with the ionospheric physical processes under the initial conditions of the model; obtaining particle densities of different particle types based on the continuity equation and the physical parameters associated with the ionospheric physical processes; and determining the electron density of the ionospheric region D based on the particle densities of different particle types.

[0007] In some embodiments, the physical parameters associated with the ionospheric physical process include the ion generation rate corresponding to the photochemical process and the ion generation rate corresponding to the ion chemical process; according to the continuity equation and the physical parameters associated with the ionospheric physical process, the particle density of different particle types is obtained, including: determining the sum P of the ion generation rate and the ion generation rate; according to the continuity equation and the sum P, the ion density of different ion types is calculated.

[0008] In some embodiments, the physical parameters associated with the ionospheric physical process also include ion loss rates corresponding to ion chemical processes of different ion types, and the ion production rates corresponding to the ion chemical processes include ion production rates corresponding to ion chemical processes of different ion types; calculating the ion density of different ion types according to the continuity equation and the sum value P includes: calculating the ion density n of different ion types according to the continuity equation. s ; Among them, the continuity equation is P s =L s n s , L s represents the ion loss rate corresponding to the ionic chemical process of the sth ion type, P s =P v1 +P v2,s , P v1 、P v2,s They respectively represent the ion generation rate corresponding to the photochemical process and the ion production rate corresponding to the ion chemical process of the sth ion type, and s represents the particle type number.

[0009] In some embodiments, the electron density of the ionosphere region D is determined based on the particle density of different particle types, including: obtaining the number N of positive ion species and the number M of negative ion species; obtaining the sum of the positive ion electron density of all types of positive ions and the sum of the negative ion electron density of all types of negative ions; wherein the sum of the positive ion ionization density is obtained by accumulating the particle density of N types of positive ions, and the sum of the negative ion electron density is obtained by accumulating the particle density of M types of negative ions; and obtaining the electron density of the ionosphere region D based on the sum of the positive ion electron density and the sum of the negative ion electron density.

[0010] In some embodiments, the electron density of the ionosphere D region is obtained based on the positive ion electron density sum and the negative ion electron density sum, including: obtaining the electron density of the ionosphere D region based on the difference between the positive ion electron density sum and the negative ion electron density sum.

[0011] In some embodiments, an ionosphere model associated with ionosphere region D is constructed and initial conditions of the model are configured, including: determining an international reference ionosphere model as the ionosphere model associated with ionosphere region D; configuring solar extreme ultraviolet (EUV) radiation flux and absorption parameters, and ionization parameters; setting initialization conditions for the international reference ionosphere model and the neutral atmosphere model; configuring the density, electron temperature, and temperature values ​​of N types of positive ions, M types of negative ions, and neutral particles; and configuring an observation address, observation time, solar conditions, and geomagnetic conditions.

[0012] In some embodiments, the device includes: a model construction module, configured to construct an ionospheric model associated with the ionospheric region D and configure the initial conditions of the model; a parameter acquisition module, configured to obtain physical parameters associated with the ionospheric physical processes under the initial conditions of the model; an ion density acquisition module, configured to obtain particle densities of different particle types based on the continuity equation and the physical parameters associated with the ionospheric physical processes; and an electron density acquisition module, configured to determine the electron density of the ionospheric region D based on the particle densities of different particle types.

[0013] In some embodiments, the apparatus comprises a processor and a memory storing program instructions, and the processor is configured to execute the above-described method for measuring ionospheric electron density when executing the program instructions.

[0014] In some embodiments, the detection device includes: a detection device body; and the device for measuring ionospheric electron density as described above, installed on the detection device body.

[0015] In some embodiments, a storage medium stores program instructions, which, when executed, are used to cause a computer to execute the method for measuring ionospheric electron density as described in some embodiments.

[0016] The method and apparatus, detection equipment, and storage medium for measuring ionospheric electron density provided by the embodiments of the present disclosure can achieve the following technical effects:

[0017] The disclosed embodiments calculate the density of various particle types based on the continuity equation under chemical equilibrium and combine it with physical parameters associated with ionospheric physical processes, achieving accurate calculation of the electron density in the D region of the ionosphere. This helps improve the ability to accurately detect the ionospheric electromagnetic environment. Furthermore, it has important implications for the development of new technologies for ionospheric electromagnetic environments and for the correction of radio communications and navigation systems.

[0018] The above general description and the following description are exemplary and explanatory only and are not intended to limit the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] One or more embodiments are exemplarily described by corresponding drawings. These exemplary descriptions and drawings do not limit the embodiments. Elements with the same reference numerals in the drawings are shown as similar elements. The drawings do not constitute a scale limitation. In addition,

[0020] Figure 1 is a schematic diagram of a method for measuring ionospheric electron density provided by an embodiment of the present disclosure;

[0021] Figure 2is a schematic diagram of another method for measuring ionospheric electron density provided by an embodiment of the present disclosure;

[0022] Figure 3 This is a block diagram of the main positive ion reaction provided by the embodiment of the present disclosure;

[0023] Figure 4 This is a block diagram of the main negative ion reaction provided by the embodiment of the present disclosure;

[0024] Figure 5 The distribution results of various positive ions, total positive ions and electron profiles at 12:00 LT in the mid-latitude region (25°N) provided by the embodiments of the present disclosure.

[0025] Figure 6 The distribution results of various negative ions, total negative ions and electron profiles in the mid-latitude region (25°N) at 12:00 LT are provided in the embodiments of the present disclosure.

[0026] Figure 7 The daily variation distribution results of total positive and negative ions in the mid-latitude region (25°N) at 12:00 LT provided in the embodiments of the present disclosure;

[0027] Figure 8 is a schematic diagram of a device for measuring ionospheric electron density provided by an embodiment of the present disclosure;

[0028] Figure 9 Schematic diagram of another device for measuring ionospheric electron density provided by an embodiment of the present disclosure. DETAILED DESCRIPTION

[0029] In the description and claims of the embodiments of the present disclosure, as well as in the accompanying drawings, the terms "first," "second," and the like are used to distinguish similar items and are not necessarily used to describe a particular order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate to describe the embodiments of the present disclosure herein. In addition, the terms "including," "having," and any variations thereof are intended to cover non-exclusive inclusions.

[0030] Unless otherwise stated, the term "plurality" means two or more.

[0031] In the embodiment of the present disclosure, the character " / " indicates that the preceding and following objects are in an "or" relationship. For example, A / B means: A or B.

[0032] The term "and / or" describes an association between objects, indicating that three relationships can exist. For example, A and / or B means: A or B, or A and B.

[0033] The term "correspondence" may refer to an association relationship or a binding relationship. The correspondence between A and B means that there is an association relationship or a binding relationship between A and B.

[0034] Combine Figure 1 As shown, an embodiment of the present disclosure provides a method for measuring ionospheric electron density, comprising:

[0035] S01, the detection equipment constructs an ionospheric model associated with the ionosphere D region and configures the model initial conditions.

[0036] S02, the detection equipment obtains physical parameters related to the ionospheric physical process under the initial conditions of the model.

[0037] S03, the detection equipment obtains the particle density of different particle types based on the continuity equation and physical parameters associated with the ionospheric physical process.

[0038] S04, the detection equipment determines the electron density in region D of the ionosphere based on the particle density of different particle types.

[0039] Using the method for measuring ionospheric electron density provided by the embodiment of the present disclosure, the embodiment of the present disclosure constructs an ionospheric model associated with the ionospheric region D and configures the initial conditions of the model, and then obtains the physical parameters associated with the ionospheric physical processes under the initial conditions of the model. Then, the particle density of different particle types is obtained based on the continuity equation and the physical parameters associated with the ionospheric physical processes. Finally, the electron density of the ionospheric region D is determined based on the particle density of different particle types. The embodiment of the present disclosure is based on the continuity equation under chemical equilibrium, and combines the continuity equation with the physical parameters associated with the ionospheric physical processes to calculate the density of each type of particle, thereby achieving accurate calculation of the electron density of the ionospheric region D. This helps to improve the ability to accurately detect the ionospheric electromagnetic environment. At the same time, it is of great significance to the development of new technologies for the ionospheric electromagnetic environment and the correction of radio communications and navigation systems.

[0040] In the disclosed embodiment, the ionospheric physical process includes a photochemical process and an ion chemical process.

[0041] The following is a description of the photochemical process:

[0042] In the photochemical process, the physical processes that control the ionosphere are usually divided into two categories: photochemical processes that lead to the creation and disappearance of ionization and transport processes that lead to the movement of ionized particles.

[0043] Due to the complex and adhesion processes of particles and a large number of neutral components that occur very quickly in the ionospheric D region, the ion lifetime is very short, usually around a few seconds. Therefore, the transport process in the ionospheric D region can be ignored, and photochemical processes and ion chemical processes play a dominant role in the ionospheric D region. Since the unit optical depth of X-ray and long-wave ultraviolet radiation reaches a low altitude, the photochemical process at the altitude of the ionospheric D region is mainly considered to be solar EUV radiation. Lyman-alpha radiation and photoionization of neutral atmospheric components (N2, O2, O, NO, etc.). In the calculation of photoionization, the EUVAC model is used for the solar EUV radiation flux, and the Richards cross-section parameters are used for the absorption and ionization cross-section parameters.

[0044] The following is a description of the ion chemical process: The ion chemical process at the altitude of the ionosphere D region is extremely complex. The ionosphere model mainly considers the following types of ion chemical reactions: (1) the combination of electrons and positive ions; (2) the collision exchange of ions and neutral components; (3) the complex of positive ions and negative ions; (4) the attachment reaction of electrons and neutral components. Although the density of neutral particles in the ionosphere D region is very high and accounts for a high proportion, since ionized ions can easily exchange charges with neutral particles with lower ionization potential, and the reaction rate is much higher than that of neutral particles, for the ion chemical process at the altitude of the ionosphere D region, neutral and neutral collision reactions can be ignored.

[0045] The ionospheric model considers a steady-state ion chemistry framework involving 145 reactions involving 23 positive ions, 11 negative ions, 12 neutral particles, and electrons. The chemical reaction equations and corresponding chemical reaction rates involved in the ion chemistry framework use empirical values ​​from the literature. The main positive and negative ion reaction diagrams in the ionospheric D region are shown in Figures 1 and 2. Figure 3 and Figure 4 shown.

[0046] After determining the ionospheric physical process, the embodiment of the present disclosure can calculate the electron density based on the continuity equation and the respective parameters of the photochemical process and the ion chemical process.

[0047] In the ionospheric physical process in the D region of the ionosphere, the changes in ion density and electron density can be described by the continuity equation:

[0048]

[0049] in, represents the particle change rate, It represents the rate of change of particle density caused by the transport process of ionospheric physical processes, P represents the particle production rate under the combined action of photochemical and ion chemical processes per unit time and unit volume, L(N) represents the particle loss rate caused by ion chemical processes per unit time and unit volume, and N represents the ion density.

[0050] When solving the continuity equation, if it is assumed that the system reaches a photochemical equilibrium state and the external transport process is ignored, and the ion loss rate and particle density are linearly related (i.e., L(N) = Ln), the continuity equation is simplified to:

[0051] P-Ln=0;

[0052] Where P represents the sum of the ion generation rate due to solar ultraviolet radiation, Lyman-alpha radiation, and other photochemical processes, and the ion production rate due to ion chemistry. L represents the ion loss rate corresponding to ion chemistry, and n represents the particle density.

[0053] It should be noted that the photochemical process encompassed by P is independent of ion type, but the ion chemical process corresponding to the particle production rate encompassed by P is ion type-dependent. Based on this, the continuity equation can be further decomposed into the sum of the ion generation rate corresponding to the photochemical process and the ion production rate corresponding to the ion chemical process of a certain ion type.

[0054] In the photochemical equilibrium region, although ion chemical processes may change the composition of ion-electron pairs, the system as a whole always remains electrically neutral. This means that although local chemical reactions may increase or decrease the number of charged particles, the total positive and negative charges are equal, ensuring that the macroscopic electrical properties of the system remain unchanged. Therefore, the electron density N e for:

[0055]

[0056] Where i is the number of positive ion species, j is the number of negative ion species, and n is the density of each particle. The distribution of positive ion, negative ion and electron density with height is as follows: Figure 5 and Figure 6 The diurnal variation of total positive and negative ions at 12:00 LT in the mid-latitude region (25°N) is shown as follows. Figure 7 As shown. Among them, Figures 5 to 7 In the figure, the solar and geomagnetic conditions are: F10.7=70, Ap=4.

[0057] Optionally, the physical parameters associated with the ionospheric physical process include an ion generation rate corresponding to a photochemical process and an ion production rate corresponding to an ionochemical process. The detection device obtains the particle density of different particle types based on the continuity equation and the physical parameters associated with the ionospheric physical process, including:

[0058] The detection device determines the sum of the ion generation rate and the ion production rate, P.

[0059] The detection device calculates the ion density of different ion types based on the continuity equation and the sum value P.

[0060] In this way, the embodiment of the present disclosure calculates the density of various types of particles based on the continuity equation under chemical equilibrium and combines the continuity equation with physical parameters associated with ionospheric physical processes, thereby achieving accurate calculation of the electron density in the D region of the ionosphere.

[0061] Optionally, the physical parameters associated with the ionospheric physical process include the ion generation rate corresponding to the photochemical process, the ion production rate corresponding to the ion chemical process, and the ion loss rate corresponding to the ion chemical process. The ion production rate corresponding to the ion chemical process includes the ion production rate corresponding to the ion chemical process of different ion types. The detection device calculates the ion density of different ion types based on the continuity equation and the sum value P, including:

[0062] According to the continuity equation, calculate the ion density n of different ion types s .

[0063] Among them, the continuity equation is P s =L s n s , L s represents the ion loss rate corresponding to the ionic chemical process of the sth ion type, P s =P v1 +P v2,s , P v1 、P v2,s They respectively represent the ion generation rate corresponding to the photochemical process and the ion production rate corresponding to the ion chemical process of the sth ion type, and s represents the particle type number.

[0064] Thus, the embodiment of the present disclosure is based on the continuity equation under chemical equilibrium and combines the continuity equation with physical parameters associated with ionospheric physical processes to calculate the density of various types of particles. s 、P v1 、P v2,s After confirmation, based on L s n s =P v1 +P v2,sThe ion density of different ion types is calculated. Therefore, the embodiment of the present disclosure can be based on the continuity equation P s =L s n s The ion density of each ion type is calculated to achieve accurate calculation of the electron density in the D region of the ionosphere.

[0065] Optionally, combined Figure 2 As shown, the detection equipment determines the electron density in the D region of the ionosphere based on the particle density of different particle types, including:

[0066] S11 , the detection device obtains the number of positive ion species N and the number of negative ion species M. Wherein, N is 23 and M is 11.

[0067] S12: The detection device obtains the sum of the positive ion electron density of all types of positive ions and the sum of the negative ion electron density of all types of negative ions. The sum of the positive ion ionization density is obtained by accumulating the particle densities of N types of positive ions, and the sum of the negative ion electron density is obtained by accumulating the particle densities of M types of negative ions.

[0068] S13, the detection device obtains the electron density of the ionosphere D region according to the sum of the positive ion electron density and the sum of the negative ion electron density.

[0069] In this way, since the entire system always maintains electrical neutrality within the photochemical equilibrium region, the total positive charge and negative charge are equal. Therefore, after obtaining the number of positive and negative ion species, the embodiment of the present disclosure first obtains the sum of the positive ion electron density of all types of positive ions and the sum of the negative ion electron density of all types of negative ions, and then obtains the electron density of the ionosphere D region based on the sum of the positive ion electron density and the sum of the negative ion electron density, thereby achieving accurate calculation of the electron density of the ionosphere D region.

[0070] Optionally, the detection device obtains the electron density of the ionosphere D region according to the positive ion electron density sum value and the negative ion electron density sum value, including:

[0071] The detection equipment obtains the electron density in the D region of the ionosphere based on the difference between the sum of the positive ion electron density and the sum of the negative ion electron density.

[0072] In this way, the accurate calculation of the electron density in the D region of the ionosphere can be achieved.

[0073] As an example, the electron density N in region D of the ionosphere is e for:

[0074]

[0075] Among them, m represents the positive ion species number, z represents the negative ion species number, and n m represents the particle density of the mth positive ion, nz represents the particle density of the zth positive ion.

[0076] Optionally, the detection device constructs an ionospheric model associated with the ionospheric region D and configures the model initial conditions, including:

[0077] The detection equipment determines the International Reference Ionospheric Model as the ionospheric model associated with the D region of the ionosphere.

[0078] The detection equipment is equipped with solar extreme ultraviolet (EUV) radiation flux, absorption parameters and ionization parameters.

[0079] The detection equipment sets initialization conditions for the international reference ionosphere model and the neutral atmosphere model.

[0080] The detection equipment is configured with the respective densities, electron temperatures, and temperature values ​​of N kinds of positive ions, M kinds of negative ions, and neutral particles.

[0081] The detection equipment is configured with the observation address, observation time, solar conditions, and geomagnetic conditions.

[0082] In this way, the construction of the ionospheric physical model is realized to set the initial conditions, providing model support for the calculation of physical parameters associated with subsequent ionospheric physical processes.

[0083] Optionally, the N positive ions include NO + 、N2 + , O + 、O2 + There are 23 kinds of positive ions, M kinds of negative ions including O - 、O2 - 、CO3 - There are 11 types of negative ions. Neutral particles include O, O2, He, N2, CO2, H2O, O3, NO2, HO2, OH, O2(Δg) and NO.

[0084] Among them, the density of NO n NO Solved by the following formula: n O They represent the density of O2 and the density of O respectively, and T represents the temperature value.

[0085] In practical applications, the method for measuring ionospheric electron density provided by the present invention can provide an algorithm and software system framework for the design of low-ionosphere detection systems based on ground-based detection stations or low-orbit GNSS (Global Navigation Satellite System) satellites.

[0086] Combine Figure 8As shown, an embodiment of the present disclosure provides an apparatus 200 for measuring ionospheric electron density, comprising a model construction module 201, a parameter acquisition module 202, an ion density acquisition module 203, and an electron density acquisition module 204. The model construction module 201 is configured to construct an ionospheric model associated with the ionospheric region D and configure the model initial conditions. The parameter acquisition module 202 is configured to obtain physical parameters associated with the ionospheric physical processes under the model initial conditions. The ion density acquisition module 203 is configured to obtain the particle density of different particle types based on the continuity equation and the physical parameters associated with the ionospheric physical processes. The electron density acquisition module 204 is configured to determine the electron density of the ionospheric region D based on the particle density of different particle types.

[0087] The device 200 for measuring ionospheric electron density provided by the disclosed embodiments calculates the density of various types of particles based on the continuity equation under chemical equilibrium and combines it with physical parameters associated with ionospheric physical processes, achieving accurate calculation of the electron density in the D region of the ionosphere. This helps improve the ability to accurately detect the ionospheric electromagnetic environment. It also has important implications for the development of new technologies for ionospheric electromagnetic environment analysis and for the correction of radio communication and navigation systems.

[0088] Combine Figure 9 As shown, an embodiment of the present disclosure provides a device 100 for measuring ionospheric electron density, including a processor 700 and a memory 701. Optionally, the device 100 may further include a communication interface 702 and a bus 703. The processor 700, the communication interface 702, and the memory 701 may communicate with each other via the bus 703. The communication interface 702 may be used for information transmission. The processor 700 may call the logic instructions in the memory 701 to execute the method for measuring ionospheric electron density of the above embodiment.

[0089] In addition, the logic instructions in the memory 701 can be implemented in the form of software functional units and can be stored in a computer-readable storage medium when sold or used as an independent product.

[0090] Memory 701, as a computer-readable storage medium, can be used to store software programs and computer-executable programs, such as program instructions / modules corresponding to the methods in the embodiments of the present disclosure. Processor 700 executes the program instructions / modules stored in memory 701 to perform functional applications and data processing, thereby implementing the method for measuring ionospheric electron density in the above-mentioned embodiments.

[0091] The memory 701 may include a program storage area and a data storage area. The program storage area may store an operating system and at least one application required for a function; the data storage area may store data generated based on the use of the terminal device. Furthermore, the memory 701 may include high-speed random access memory and non-volatile memory.

[0092] The embodiment of the present disclosure provides a detection device, comprising: a detection device body, and the above-mentioned device 200 (100) for measuring the electron density of the ionosphere. The device 200 (100) for measuring the electron density of the ionosphere is installed on the detection device body. The installation relationship described here is not limited to placement inside the detection device body, but also includes installation connections with other components of the detection device, including but not limited to physical connections, electrical connections or signal transmission connections. It can be understood by those skilled in the art that the device 200 (100) for measuring the electron density of the ionosphere can be adapted to a feasible detection device body, thereby realizing other feasible embodiments.

[0093] An embodiment of the present disclosure provides a computer-readable storage medium storing computer-executable instructions, wherein the computer-executable instructions are configured to execute the above-mentioned method for measuring ionospheric electron density.

[0094] The technical solutions of the embodiments of the present disclosure may be embodied in the form of a software product, which is stored in a storage medium and includes one or more instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the method described in the embodiments of the present disclosure. The aforementioned storage medium may be a non-transitory storage medium, such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, among other media capable of storing program code.

[0095] The above description and the accompanying drawings fully illustrate the embodiments of the present disclosure so that those skilled in the art can practice them. Other embodiments may include structural, logical, electrical, process and other changes. The embodiments represent only possible variations. Unless explicitly required, individual components and functions are optional, and the order of operations may vary. Parts and features of some embodiments may be included in or replace parts and features of other embodiments. Moreover, the words used in this application are only used to describe the embodiments and are not used to limit the claims. As used in the description of the embodiments and claims, unless the context clearly indicates otherwise, the singular forms "a", "an" and "the" are intended to also include plural forms. Similarly, the term "and / or" as used in this application refers to any and all possible combinations of one or more associated listings. In addition, when used in this application, the term "comprise" and its variations "comprises" and / or comprising refer to the presence of stated features, wholes, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, wholes, steps, operations, elements, components and / or groups of these. In the absence of further restrictions, an element defined by the sentence "comprising a..." does not exclude the presence of other identical elements in the process, method or device that includes the element. In this article, each embodiment may focus on the differences from other embodiments, and the same and similar parts between the various embodiments can be referenced to each other. For the methods, products, etc. disclosed in the embodiments, if they correspond to the method part disclosed in the embodiments, then the relevant parts can be found in the description of the method part.

[0096] Those skilled in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software may depend on the specific application and design constraints of the technical solution. The technicians may use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of the embodiments of the present disclosure. The technicians will clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

Claims

1. A method for measuring ionospheric electron density, characterized in that: include: Construct an ionospheric model associated with the D region of the ionosphere and configure the model initial conditions; Obtain the physical parameters associated with the ionospheric physical processes under the initial conditions of the model; Obtain the particle density of different particle types based on the continuity equation and physical parameters associated with ionospheric physical processes; Based on the particle density of different particle types, the electron density in the D region of the ionosphere is determined.

2. The method according to claim 1, characterized in that The physical parameters associated with ionospheric physical processes include the ion generation rate corresponding to the photochemical process and the ion production rate corresponding to the ion chemical process. Based on the continuity equation and the physical parameters associated with ionospheric physical processes, the particle density of different particle types is obtained, including: Determine the sum of the ion generation rate and the ion production rate, P; Based on the continuity equation and the sum value P, the ion density of different ion types is calculated.

3. The method according to claim 2, characterized in that The physical parameters associated with the ionospheric physical process also include ion loss rates corresponding to ion chemical processes of different ion types, and the ion production rates corresponding to the ion chemical processes include ion production rates corresponding to ion chemical processes of different ion types; Based on the continuity equation and the sum value P, the ion density of different ion types is calculated, including: According to the continuity equation, calculate the ion density n of different ion types s ; Among them, the continuity equation is P s =L s n s , L s represents the ion loss rate corresponding to the ionic chemical process of the sth ion type, P s =P v1 +P v2,s , P v1 、P v2,s They respectively represent the ion generation rate corresponding to the photochemical process and the ion production rate corresponding to the ion chemical process of the sth ion type, and s represents the particle type number.

4. The method according to claim 1, wherein Determine the electron density in the D region of the ionosphere based on the particle density of different particle types, including: Obtain the number of positive ion species N and the number of negative ion species M; Obtaining the sum of positive ion electron densities of all types of positive ions and the sum of negative ion electron densities of all types of negative ions; wherein the sum of positive ion ionization densities is obtained by accumulating the particle densities of N types of positive ions, and the sum of negative ion electron densities is obtained by accumulating the particle densities of M types of negative ions; The electron density in the D region of the ionosphere is obtained based on the sum of the positive ion electron density and the negative ion electron density.

5. The method according to claim 4, characterized in that The electron density in the D region of the ionosphere is obtained based on the sum of the positive ion electron density and the negative ion electron density, including: The electron density in region D of the ionosphere is obtained based on the difference between the sum of the positive ion electron density and the sum of the negative ion electron density.

6. The method according to any one of claims 1 to 5, characterized in that Construct an ionospheric model associated with the D region of the ionosphere and configure the model initial conditions, including: Identify the International Reference Ionospheric Model as the ionospheric model associated with the D region of the ionosphere; Configure solar extreme ultraviolet (EUV) radiation flux, absorption parameters, and ionization parameters; Set initialization conditions for the International Reference Ionosphere Model and the Neutral Atmosphere Model; Configure the density, electron temperature and temperature values ​​of N kinds of positive ions, M kinds of negative ions and neutral particles; Configure the observation address, observation time, solar conditions, and geomagnetic conditions.

7. A device for measuring ionospheric electron density, characterized in that: include: A model building module is configured to build an ionospheric model associated with the ionospheric D region and configure the model initial conditions; a parameter acquisition module configured to obtain physical parameters associated with ionospheric physical processes under initial conditions of the model; an ion density acquisition module configured to obtain particle densities of different particle types based on a continuity equation and physical parameters associated with ionospheric physical processes; The electron density acquisition module is configured to determine the electron density of the ionosphere D region according to the particle density of different particle types.

8. A device for measuring ionospheric electron density, comprising a processor and a memory storing program instructions, characterized in that: The processor is configured to execute the method for measuring ionospheric electron density according to any one of claims 1 to 6 when running the program instructions.

9. A detection device, characterized in that: include: Detection equipment body; The device for measuring ionospheric electron density according to claim 7 or 8 is installed on the detection device body.

10. A computer-readable storage medium storing program instructions, characterized in that: When the program instructions are executed, the computer is configured to execute the method for measuring ionospheric electron density according to any one of claims 1 to 6.

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