A method and system for rapidly inverting atmospheric duct height in a complex radio wave environment

Abstract

The application discloses a method and system for rapidly inverting atmospheric waveguide height in a complex electric wave environment, and the method comprises the following steps: transmitting a test electric wave to the atmosphere, and acquiring relevant data of the test electric wave in a propagation process, wherein the relevant data comprises signal power of the test electric wave, propagation distance of the test electric wave, refractive index gradient, temperature, humidity and pressure at the height where the test electric wave is located; performing normalization processing on the relevant data, setting an estimation function of the atmospheric waveguide height, calculating the height estimation of the atmospheric waveguide according to the normalized relevant data; and fitting the height estimation of the atmospheric waveguide with the actual height of the atmospheric waveguide, so as to complete the rapid inversion of the atmospheric waveguide height.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of waveguide height estimation, and more particularly relates to a method and system for rapidly inverting atmospheric waveguide height in a complex radio wave environment. BACKGROUND

[0002] Atmospheric waveguide refers to the phenomenon that electromagnetic waves (such as radio waves, radar waves, etc.) are bound and guided in a specific height range due to the vertical variation of temperature, humidity, and pressure, etc. in the atmosphere. It forms a waveguide layer, so that the electric wave is guided within it and does not spread rapidly as in the ordinary atmosphere. Atmospheric waveguide usually occurs near the ground, especially under certain conditions of the ocean, continent and boundary layer, and the electric wave is bound in a certain height range.

[0003] Weather forecasting and meteorological monitoring systems, especially those based on radar or radio waves, are affected by the atmospheric waveguide effect. Estimating the waveguide height can help meteorological researchers predict the electric wave propagation characteristics at different height levels, and thus make more accurate predictions of weather changes. However, there is currently no technical solution that can more accurately estimate the waveguide height. SUMMARY

[0004] To solve the above technical problems, the application provides a method for rapidly inverting atmospheric waveguide height in a complex radio wave environment, comprising:

[0005] emitting a test electric wave into the atmosphere and obtaining relevant data of the test electric wave in the propagation process, wherein the relevant data includes: signal power of the test electric wave, propagation distance of the test electric wave, refractive index gradient, temperature, humidity and pressure at the height of the test electric wave;

[0006] normalizing the relevant data, setting an estimation function of the atmospheric waveguide height, and calculating the height estimation of the atmospheric waveguide according to the normalized relevant data;

[0007] fitting the height estimation of the atmospheric waveguide with the actual height of the atmospheric waveguide, thereby completing the rapid inversion of the atmospheric waveguide height.

[0008] Further, the estimation function of the atmospheric waveguide height comprises:

[0009] ,

[0010] wherein, is the height estimation of the atmospheric waveguide, is the optimal height of the atmospheric waveguide, is the height Correction factor at, used to handle height Refractive index The unevenness of the gradient change, is the number of reflections in the atmospheric duct, For the The weight of the secondary reflection, For the sutra After the second reflection, the signal power of the radio wave is measured by the parameter And the propagation distance of the test radio wave The radio wave path function composed of .

[0011] Further, height Correction factor at include:

[0012] ,

[0013] in, For height The refractive index, is the temperature weight, For height The temperature at is the temperature adjustment factor, is the humidity weight, For height The humidity of the is the humidity adjustment factor, is the weight of air pressure, For height The air pressure at is the adjustment factor for air pressure, is the first adjustment factor of the correction factor, is the second adjustment factor of the correction factor, is the third adjustment factor of the correction factor, It is the fourth adjustment factor of the correction factor.

[0014] Further, the After the second reflection, the signal power of the radio wave is measured by the parameter And the propagation distance of the test radio wave The radio wave path function include:

[0015] ,

[0016] in, For the The signal power of the test wave after the first reflection is is the adjustment factor of the radio wave path function, For the The reflection coefficient of the secondary reflection, For the The adjustment factor for the secondary reflection, is the amount of interference, For the The intensity of the secondary interference, For the The angular frequency of the secondary interference, For the The initial phase of the secondary interference.

[0017] Further, height Refractive index include:

[0018] ,

[0019] ,

[0020] in, To test the refractive index gradient in radio wave propagation, For height Atmospheric turbulence causes random disturbances in the refractive index. is the adjustment factor for random disturbance, For height The fractional Brownian motion of the test wave, is the Hurst index.

[0021] Furthermore, all weights and adjustment factors are fitted by the least squares method or ant colony algorithm until the height of the atmospheric duct is estimated. If the error between the actual height of the atmospheric duct and the actual height of the atmospheric duct is less than the preset error threshold, the height of the atmospheric duct after fitting will be As the final height of the atmospheric duct.

[0022] The present invention also proposes a rapid inversion system for atmospheric duct height in a complex radio wave environment, comprising:

[0023] a data acquisition module, configured to transmit a test radio wave into the atmosphere and acquire relevant data during the propagation of the test radio wave, wherein the relevant data includes: signal power of the test radio wave, propagation distance of the test radio wave, refractive index gradient, temperature, humidity, and pressure at the height of the test radio wave;

[0024] an inversion module, configured to normalize the relevant data, set an estimation function for the atmospheric duct height, and calculate an estimated height of the atmospheric duct based on the normalized relevant data;

[0025] The fitting module is used to fit the estimated height of the atmospheric duct with the actual height of the atmospheric duct, thereby completing the rapid inversion of the atmospheric duct height.

[0026] Further, the estimation function of the height of the atmospheric duct includes:

[0027] ,

[0028] wherein, is the height estimation of the atmospheric duct, is the optimal height of the atmospheric duct, is the height correction factor at the height for handling the inhomogeneity of the refractive index gradient change, is the number of reflections of the atmospheric duct, is the weight of the th reflection, is the signal power of the test radio wave after the th reflection by the parameter, and the propagation distance of the test radio wave is the radio path function consisting of the signal power of the test radio wave after the th reflection by the parameter and the propagation distance of the test radio wave.

[0029] Further, the correction factor at the height includes:

[0030] ,

[0031] wherein, is the refractive index at the height is the weight of the temperature, is the temperature at the height is the adjustment factor of the temperature, is the weight of the humidity, is the humidity at the height is the adjustment factor of the humidity, is the weight of the air pressure, is the air pressure at the height is the adjustment factor of the air pressure, is the first adjustment factor of the correction factor, is the second adjustment factor of the correction factor, is the third adjustment factor of the correction factor, is the fourth adjustment factor of the correction factor. Further, the signal power of the test radio wave after the th reflection by the parameter and the propagation distance of the test radio wave

[0032] th reflection by the parameter and the propagation distance of the test radio wave ​​The radio path function is composed of comprises:

[0033] ,

[0034] wherein, is the signal power of the test radio wave after the n-th reflection, is an adjustment factor of the radio path function, is the reflection coefficient of the n-th reflection, is an adjustment factor of the n-th reflection, is the number of interferences, is the strength of the n-th interference, is the angular frequency of the n-th interference, is the initial phase of the n-th interference. Overall, compared with the prior art, the above technical solutions conceived by the present application have the following beneficial effects: The present application can accurately estimate the height of the atmospheric waveguide by setting the estimation function of the atmospheric waveguide height, thereby providing data support for meteorological researchers and improving the accuracy of weather forecasting. BRIEF DESCRIPTION OF DRAWINGS

[0035] is a method flowchart of embodiment 1 of the present application;

[0036] is a system structure diagram of embodiment 2 of the present application. DETAILED DESCRIPTION

[0037] Figure 1 In order to better understand the above technical solutions, the above technical solutions will be described in detail below in conjunction with the drawings and specific embodiments of the specification.

[0038] The method provided by the present application can be implemented in a terminal environment, which can include one or more of the following components: a processor, a storage medium and a display screen. The storage medium stores at least one instruction, which is loaded and executed by the processor to implement the method described in the following embodiments. Figure 2 The processor can include one or more processing cores. The processor connects various parts in the entire terminal through various interfaces and lines, executes various functions of the terminal and processes data by running or executing instructions, programs, code sets or instruction sets stored in the storage medium, and calling data stored in the storage medium.

[0039] The processor can include one or more processing cores. The processor connects various parts in the entire terminal through various interfaces and lines, executes various functions of the terminal and processes data by running or executing instructions, programs, code sets or instruction sets stored in the storage medium, and calling data stored in the storage medium.

[0040] The processor can include one or more processing cores. The processor connects various parts in the entire terminal through various interfaces and lines, executes various functions of the terminal and processes data by running or executing instructions, programs, code sets or instruction sets stored in the storage medium, and calling data stored in the storage medium.

[0041] The processor can include one or more processing cores. The processor connects various parts in the entire terminal through various interfaces and lines, executes various functions of the terminal and processes data by running or executing instructions, programs, code sets or instruction sets stored in the storage medium, and calling data stored in the storage medium. ​​​

[0042] The storage medium can include a random access memory (RAM) and can also include a read-only memory (ROM). The storage medium can be used to store instructions, programs, codes, code sets, or instructions.

[0043] The display screen is used to display the user interface of each application program.

[0044] In addition, those skilled in the art can understand that the structure of the terminal described above does not constitute a limitation on the terminal, and the terminal can include more or fewer components, or combine certain components, or different component arrangements. For example, the terminal also includes radio frequency circuitry, input units, sensors, audio circuitry, power supplies, and other components, which are not described here.

[0045] Embodiment 1

[0046] As Figure 1 , the embodiment proposes a method for rapidly inverting the height of an atmospheric waveguide in a complex radio wave environment, including:

[0047] Step 101, transmitting a test radio wave into the atmosphere and obtaining related data of the test radio wave during propagation, wherein the related data includes signal power of the test radio wave, propagation distance of the test radio wave, refractive index gradient, temperature, humidity and pressure at the height of the test radio wave;

[0048] Step 102, normalizing the related data, setting an estimation function of the height of the atmospheric waveguide, and calculating the height estimation of the atmospheric waveguide according to the normalized related data;

[0049] Specifically, the estimation function of the height of the atmospheric waveguide includes:

[0050] ,

[0051] wherein, is the height estimation of the atmospheric waveguide, is the optimal height of the atmospheric waveguide, is the correction factor at the height , used to process the non-uniformity of the refractive index gradient change at the height , is the number of reflections of the atmospheric waveguide, is the weight of the th reflection, is the radio wave path function composed of the signal power of the parameter test radio wave and the propagation distance of the test radio wave after the th reflection.

[0052] Specifically, high Correction factor at include:

[0053] ,

[0054] in, For height The refractive index, is the temperature weight, For height The temperature at is the temperature adjustment factor, is the humidity weight, For height The humidity of the is the humidity adjustment factor, is the weight of air pressure, For height The air pressure at is the adjustment factor for air pressure, is the first adjustment factor of the correction factor, is the second adjustment factor of the correction factor, is the third adjustment factor of the correction factor, It is the fourth adjustment factor of the correction factor.

[0055] Specifically, the After the second reflection, the signal power of the radio wave is measured by the parameter And the propagation distance of the test radio wave The radio wave path function include:

[0056] ,

[0057] in, For the The signal power of the test wave after the first reflection is is the adjustment factor of the radio wave path function, For the The reflection coefficient of the secondary reflection, For the The adjustment factor for the secondary reflection, is the amount of interference, For the The intensity of the secondary interference, For the The angular frequency of the secondary interference, For the The initial phase of the secondary interference.

[0058] Interference terms are usually formed due to the superposition of waves when radio waves are reflected or refracted along different propagation paths. The following are some specific examples of interference terms:

[0059] 1. Reflection interference

[0060] During radio wave propagation, especially in waveguides or the atmosphere, radio waves will be reflected on different reflection surfaces, resulting in different propagation paths. Each reflection path can generate an interference wave.

[0061] 2. Multiple reflection interference

[0062] Radio waves can undergo multiple reflections in atmospheric waveguides. For example, a wave may reflect off the ground and then be reflected again by clouds or other layers of the medium, resulting in multiple reflection paths, each with an interference component. The characteristics of each reflection path (such as intensity, frequency, and phase) can vary.

[0063] 3. Refraction Interference

[0064] When radio waves pass through inhomogeneous media, they refract. Different refraction paths result in different propagation delays and phase shifts, leading to refraction interference. For example, in the atmosphere, radio waves may pass through temperature, humidity, or pressure fluctuations, causing changes in their refraction paths.

[0065] Therefore, this embodiment can more accurately describe the propagation characteristics of radio waves in a complex environment by setting the interference term.

[0066] Specifically, high Refractive index include:

[0067] ,

[0068] ,

[0069] in, To test the refractive index gradient in radio wave propagation, For height Atmospheric turbulence causes random disturbances in the refractive index. is the adjustment factor for random disturbance, For height The fractional Brownian motion of the test wave, is the Hurst index.

[0070] Step 103 : Fitting the estimated height of the atmospheric duct with the actual height of the atmospheric duct, thereby completing a rapid inversion of the atmospheric duct height.

[0071] Specifically, all the weights and adjustment factors are fitted by a least square method or an ant colony algorithm until the height estimation of the atmospheric duct is less than a preset error threshold, the height of the atmospheric duct after fitting is taken as the final height of the atmospheric duct.

[0072] Embodiment 2

[0073] As shown in Figure 2 , the embodiment provides a system for rapidly inverting the height of an atmospheric duct in a complex radio wave environment, which comprises:

[0074] A data acquisition module is configured to emit a test radio wave into the atmosphere and acquire relevant data of the test radio wave in a propagation process, wherein the relevant data comprises signal power of the test radio wave, propagation distance of the test radio wave, refractive index gradient, temperature, humidity and pressure at the height where the test radio wave is located.

[0075] An inversion module is configured to normalize the relevant data, set an estimation function of the height of the atmospheric duct, and calculate the height estimation of the atmospheric duct according to the normalized relevant data.

[0076] Specifically, the estimation function of the height of the atmospheric duct comprises:

[0077] ,

[0078] wherein, is the height estimation of the atmospheric duct, is the optimal height of the atmospheric duct, is a correction factor at the height , which is used to process the non-uniformity of the refractive index gradient at the height , is the number of reflections of the atmospheric duct, is a weight of the m-th reflection, is a radio wave path function composed of signal power and propagation distance of the test radio wave after the m-th reflection.

[0079] Specifically, the correction factor at the height comprises:

[0080] ,

[0081] wherein, is the refractive index at the height ,​​​​​ is the temperature weight, For height The temperature at is the temperature adjustment factor, is the humidity weight, For height The humidity of the is the humidity adjustment factor, is the weight of air pressure, For height The air pressure at is the adjustment factor for air pressure, is the first adjustment factor of the correction factor, is the second adjustment factor of the correction factor, is the third adjustment factor of the correction factor, It is the fourth adjustment factor of the correction factor.

[0082] Specifically, the After the second reflection, the signal power of the radio wave is measured by the parameter And the propagation distance of the test radio wave The radio wave path function include:

[0083] ,

[0084] in, For the The signal power of the test wave after the first reflection is is the adjustment factor of the radio wave path function, For the The reflection coefficient of the secondary reflection, For the The adjustment factor for the secondary reflection, is the amount of interference, For the The intensity of the secondary interference, For the The angular frequency of the secondary interference, For the The initial phase of the secondary interference.

[0085] Specifically, high Refractive index include:

[0086] ,

[0087] ,

[0088] in, To test the refractive index gradient in radio wave propagation, For height Atmospheric turbulence causes random disturbances in the refractive index. is the adjustment factor for random disturbance, For height The fractional Brownian motion of the test wave, is the Hurst index.

[0089] The fitting module is used to fit the estimated height of the atmospheric duct with the actual height of the atmospheric duct, thereby completing the rapid inversion of the atmospheric duct height.

[0090] Specifically, all weights and adjustment factors are fitted by the least squares method or ant colony algorithm until the height of the atmospheric duct is estimated. If the error between the actual height of the atmospheric duct and the actual height of the atmospheric duct is less than the preset error threshold, the height of the atmospheric duct after fitting will be As the final height of the atmospheric duct.

[0091] Example 3

[0092] An embodiment of the present invention further provides a storage medium storing a plurality of instructions, wherein the instructions are used to implement the method for rapid inversion of atmospheric duct height in a complex radio wave environment.

[0093] Optionally, in this embodiment, the above-mentioned storage medium may be located in any computer terminal in a computer terminal group in a computer network, or in any mobile terminal in a mobile terminal group.

[0094] Optionally, in this embodiment, the storage medium is configured to store program codes for executing the following steps: Step 101, transmitting a test radio wave into the atmosphere, and acquiring relevant data of the test radio wave during its propagation, wherein the relevant data includes: signal power of the test radio wave, propagation distance of the test radio wave, refractive index gradient, and temperature, humidity, and pressure at the height of the test radio wave;

[0095] Step 102, normalizing the relevant data, setting an estimation function for the atmospheric duct height, and calculating an estimated atmospheric duct height based on the normalized relevant data;

[0096] Specifically, the estimation function of the atmospheric duct height includes:

[0097] ,

[0098] in, is the height estimate of the atmospheric duct, is the optimal height of the atmospheric duct, For height Correction factor at, used to handle height Refractive index The unevenness of the gradient change, is the number of reflections in the atmospheric duct, For the The weight of the secondary reflection, For the sutra After the second reflection, the signal power of the radio wave is measured by the parameter And the propagation distance of the test radio wave The radio wave path function composed of .

[0099] Specifically, high Correction factor at include:

[0100] ,

[0101] in, For height The refractive index, is the temperature weight, For height The temperature at is the temperature adjustment factor, is the humidity weight, For height The humidity of the is the humidity adjustment factor, is the weight of air pressure, For height The air pressure at is the adjustment factor for air pressure, is the first adjustment factor of the correction factor, is the second adjustment factor of the correction factor, is the third adjustment factor of the correction factor, It is the fourth adjustment factor of the correction factor.

[0102] Specifically, the After the second reflection, the signal power of the radio wave is measured by the parameter And the propagation distance of the test radio wave The radio wave path function include:

[0103] ,

[0104] in, For the The signal power of the test wave after the first reflection is is the adjustment factor of the radio wave path function, For the The reflection coefficient of the secondary reflection, For the a secondary reflection adjustment factor, a number of interferences, a first interference intensity, a first interference angular frequency, a first interference initial phase.

[0105] Specifically, the height at which the refractive index includes:

[0106] ,

[0107] ,

[0108] wherein, a refractive index gradient in a test radio wave propagation, a random disturbance of the refractive index caused by atmospheric turbulence at the height , a secondary reflection adjustment factor, a fractional Brownian motion of the test radio wave at the height , a Hurst index.

[0109] Step 103, fitting the height estimation of the atmospheric waveguide with the actual height of the atmospheric waveguide, thereby completing the rapid inversion of the atmospheric waveguide height.

[0110] Specifically, all weights and adjustment factors are fitted by the least square method or the ant colony algorithm until the error between the height estimation of the atmospheric waveguide and the actual height of the atmospheric waveguide is less than a preset error threshold, and the height of the atmospheric waveguide after fitting is taken as the final height of the atmospheric waveguide.

[0111] Embodiment 4

[0112] The embodiment of the present application also proposes an electronic device, which includes a processor and a storage medium connected with the processor, and the storage medium stores a plurality of instructions, which can be loaded and executed by the processor, so that the processor can execute the rapid inversion method of the atmospheric waveguide height in a complex radio wave environment.

[0113] Specifically, the electronic device of the present embodiment can be a computer terminal, which can include one or more processors and a storage medium.

[0114] The storage medium can be used to store software programs and modules, such as the atmospheric waveguide height rapid inversion method in a complex radio wave environment in the embodiments of the present application, corresponding program instructions / modules, and the processor executes various functions and data processing by running the software programs and modules stored in the storage medium, that is, the atmospheric waveguide height rapid inversion method in a complex radio wave environment is realized. The storage medium can include a high-speed random storage medium, and can also include a non-volatile storage medium, such as one or more magnetic storage systems, flash memories, or other non-volatile solid-state storage media. In some examples, the storage medium can further include storage media remotely arranged with respect to the processor, and the remote storage media can be connected to the terminal through a network. Examples of the above network include but are not limited to the Internet, an intranet, a local area network, a mobile communication network, and a combination thereof.

[0115] The processor can call information and application programs stored in the storage medium through the transmission system to perform the following steps: step 101, emitting a test radio wave into the atmosphere and acquiring related data of the test radio wave in the propagation process, wherein the related data includes signal power of the test radio wave, propagation distance of the test radio wave, refractive index gradient, temperature, humidity and pressure at the height where the test radio wave is located;

[0116] Step 102, normalizing the related data, setting an estimation function of the atmospheric waveguide height, and calculating the height estimation of the atmospheric waveguide according to the normalized related data;

[0117] Specifically, the estimation function of the atmospheric waveguide height includes:

[0118] ,

[0119] Wherein, is the height estimation of the atmospheric waveguide, is the optimal height of the atmospheric waveguide, is the correction factor at the height , used to process the non-uniformity of the refractive index gradient change at the height , is the reflection number of the atmospheric waveguide, is the weight of the th reflection, is the radio wave path function composed of the signal power of the parameter test radio wave and the propagation distance of the test radio wave after the th reflection.

[0120] Specifically, the correction factor at the height includes: ​

[0121] ,

[0122] in, For height The refractive index, is the temperature weight, For height The temperature at is the temperature adjustment factor, is the humidity weight, For height The humidity of the is the humidity adjustment factor, is the weight of air pressure, For height The air pressure at is the adjustment factor for air pressure, is the first adjustment factor of the correction factor, is the second adjustment factor of the correction factor, is the third adjustment factor of the correction factor, It is the fourth adjustment factor of the correction factor.

[0123] Specifically, the After the second reflection, the signal power of the radio wave is measured by the parameter And the propagation distance of the test radio wave The radio wave path function include:

[0124] ,

[0125] in, For the The signal power of the test wave after the first reflection is is the adjustment factor of the radio wave path function, For the The reflection coefficient of the secondary reflection, For the The adjustment factor for the secondary reflection, is the amount of interference, For the The intensity of the secondary interference, For the The angular frequency of the secondary interference, For the The initial phase of the secondary interference.

[0126] Specifically, high Refractive index include:

[0127] ,

[0128] ,

[0129] wherein, is the refractive index gradient in the test radio wave propagation, is the height of the random disturbance of the refractive index caused by atmospheric turbulence, is the adjustment factor of the random disturbance, is the height of the fractional Brownian motion of the test radio wave, is the Hurst index.

[0130] Step 103, fitting the height estimation of the atmospheric waveguide with the actual height of the atmospheric waveguide, thereby completing the rapid inversion of the height of the atmospheric waveguide.

[0131] Specifically, all the weights and adjustment factors are fitted by the least square method or the ant colony algorithm until the error between the height estimation of the atmospheric waveguide and the actual height of the atmospheric waveguide is less than a preset error threshold. If the error between the height estimation of the atmospheric waveguide and the actual height of the atmospheric waveguide is less than a preset error threshold, the height of the atmospheric waveguide after fitting is taken as the final height of the atmospheric waveguide.

[0132] The above-mentioned embodiment numbers of the present application are only for description, and do not represent the advantages and disadvantages of the embodiments.

[0133] In the above-mentioned embodiments of the present application, the description of each embodiment has its own emphasis, and the parts not described in detail in a certain embodiment can be referred to the related description of other embodiments.

[0134] In the several embodiments of the present application, it should be understood that the disclosed technology can be implemented in other ways. Of course, the above-mentioned system embodiments are only schematic, for example, the division of units is only a logical function division, and there can be another division manner in actual implementation, for example, a plurality of units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the coupling or direct coupling or communication connection between the units shown or discussed can be indirect coupling or communication connection through some interface, unit or module, and can be electrical or other forms.

[0135] The units described as separate components can or can not be physically separate, and the components shown as units can or can not be physical units, that is, they can be located in one place, or can be distributed on a plurality of network units. According to actual needs, some or all of the units can be selected to achieve the purpose of the embodiment scheme.

[0136] ​In addition, each function unit in each embodiment of the present application can be integrated in one processing unit, or each unit can be physically present separately, or two or more units can be integrated in one unit. The integrated unit can be realized in the form of hardware or in the form of a software function unit.

[0137] When the integrated unit is realized in the form of a software function unit and sold or used as an independent product, it can be stored in a computer readable storage medium. Based on this understanding, the technical solutions of the present application, essentially or in the form of a contribution to the prior art, or all or part of the technical solutions can be embodied in the form of a software product. The computer software product is stored in a storage medium, and includes several instructions for causing a computer machine (which can be a personal computer, a server, or a network machine, etc.) to execute all or part of the steps of the methods described in each embodiment of the present application. The aforementioned storage medium includes: a U disk, a read-only memory (ROM, Read-Only Memory), a random access memory (RAM, Random Access Memory), a mobile hard disk, a magnetic disk or an optical disk, and various media that can store program codes.

[0138] Obviously, the above embodiments are only examples for clearly illustrating, and are not intended to limit the implementation modes. For those skilled in the art, on the basis of the above description, other different forms of changes or modifications can also be made. Here, it is not necessary and also impossible to enumerate all the implementation modes. The obvious changes or modifications derived therefrom are still within the protection scope of the present application.

Claims

1. A method for rapid inversion of atmospheric duct height in a complex radio wave environment, characterized in that: include: transmitting a test radio wave into the atmosphere and obtaining relevant data during the propagation of the test radio wave, wherein the relevant data includes: signal power of the test radio wave, propagation distance of the test radio wave, refractive index gradient, temperature, humidity, and pressure at the height of the test radio wave; Normalizing the relevant data, setting an estimation function for the atmospheric duct height, and calculating an estimated height of the atmospheric duct based on the normalized relevant data; The estimation function of atmospheric duct height includes: ， in, is the height estimate of the atmospheric duct, is the optimal height of the atmospheric duct, For height Correction factor at, used to handle height Refractive index The unevenness of the gradient change, is the number of reflections in the atmospheric duct, For the The weight of the secondary reflection, For the sutra After the second reflection, the signal power of the radio wave is measured by the parameter And the propagation distance of the test radio wave The radio wave path function composed of The estimated height of the atmospheric duct is fitted with the actual height of the atmospheric duct, thereby completing a rapid inversion of the atmospheric duct height.

2. The method for rapid inversion of atmospheric duct height in a complex radio wave environment according to claim 1, characterized in that: high Correction factor at include: ， in, For height The refractive index, is the temperature weight, For height The temperature at is the temperature adjustment factor, is the humidity weight, For height The humidity of the is the humidity adjustment factor, is the weight of air pressure, For height The air pressure at is the adjustment factor for air pressure, is the first adjustment factor of the correction factor, is the second adjustment factor of the correction factor, is the third adjustment factor of the correction factor, It is the fourth adjustment factor of the correction factor.

3. The method for rapid inversion of atmospheric duct height in a complex radio wave environment according to claim 2, characterized in that: Sutra After the second reflection, the signal power of the radio wave is measured by the parameter And the propagation distance of the test radio wave The radio wave path function include: ， in, For the The signal power of the test wave after the first reflection is is the adjustment factor of the radio wave path function, For the The reflection coefficient of the secondary reflection, For the The adjustment factor for the secondary reflection, is the amount of interference, For the The intensity of the secondary interference, For the The angular frequency of the secondary interference, For the The initial phase of the secondary interference.

4. The method for rapid inversion of atmospheric duct height in a complex radio wave environment according to claim 3, characterized in that: high Refractive index include: ， ， in, To test the refractive index gradient in radio wave propagation, For height Atmospheric turbulence causes random disturbances in the refractive index. is the adjustment factor for random disturbance, For height The fractional Brownian motion of the test wave, is the Hurst index.

5. The method for rapid inversion of atmospheric duct height in a complex radio wave environment according to claim 4, characterized in that: All weights and adjustment factors are fitted by the least squares method or ant colony algorithm until the height estimate of the atmospheric duct is obtained. If the error between the actual height of the atmospheric duct and the actual height of the atmospheric duct is less than the preset error threshold, the height of the atmospheric duct after fitting will be As the final height of the atmospheric duct.

6. A rapid inversion system for atmospheric waveguide height in complex radio wave environment, characterized by: include: a data acquisition module, configured to transmit a test radio wave into the atmosphere and acquire relevant data during the propagation of the test radio wave, wherein the relevant data includes: signal power of the test radio wave, propagation distance of the test radio wave, refractive index gradient, temperature, humidity, and pressure at the height of the test radio wave; an inversion module, configured to normalize the relevant data, set an estimation function for the atmospheric duct height, and calculate an estimated height of the atmospheric duct based on the normalized relevant data; The estimation function of atmospheric duct height includes: ， in, is the height estimate of the atmospheric duct, is the optimal height of the atmospheric duct, For height Correction factor at, used to handle height Refractive index The unevenness of the gradient change, is the number of reflections in the atmospheric duct, For the The weight of the secondary reflection, For the sutra After the second reflection, the signal power of the radio wave is measured by the parameter And the propagation distance of the test radio wave The radio wave path function composed of The fitting module is used to fit the estimated height of the atmospheric duct with the actual height of the atmospheric duct, thereby completing the rapid inversion of the atmospheric duct height.

7. The system for rapid inversion of atmospheric duct height in a complex radio wave environment according to claim 6, characterized in that: high Correction factor at include: ， in, For height The refractive index, is the temperature weight, For height The temperature at is the temperature adjustment factor, is the humidity weight, For height The humidity of the is the humidity adjustment factor, is the weight of air pressure, For height The air pressure at is the adjustment factor for air pressure, is the first adjustment factor of the correction factor, is the second adjustment factor of the correction factor, is the third adjustment factor of the correction factor, It is the fourth adjustment factor of the correction factor.

8. The system for rapid inversion of atmospheric duct height in a complex radio wave environment according to claim 7, characterized in that: Sutra After the second reflection, the signal power of the radio wave is measured by the parameter And the propagation distance of the test radio wave The radio wave path function include: ， in, For the The signal power of the test wave after the first reflection is is the adjustment factor of the radio wave path function, For the The reflection coefficient of the secondary reflection, For the The adjustment factor for the secondary reflection, is the amount of interference, For the The intensity of the secondary interference, For the The angular frequency of the secondary interference, For the The initial phase of the secondary interference.

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