Software defined radio based exploration system and method

Abstract

This invention provides a software-defined radio (SDR)-based mineral exploration system and method, belonging to the field of mineral detection technology. The system includes: a SDR transmitting device for generating transmission parameters based on the geological structure and detection requirements of the area to be explored, and generating an electromagnetic wave transmission signal to be transmitted to the area based on the transmission parameters; a SDR receiving device for receiving the electromagnetic wave reception signal after propagation in the area to be explored; and a mineral analysis module for determining the distortion mode based on the electromagnetic wave transmission and reception signals, and determining the mineral type and grade based on the distortion mode. This invention utilizes the high flexibility of SDR technology to achieve rapid adjustment of transmission parameters to adapt to different geological structures and detection requirements, thus improving the system's exploration efficiency. Simultaneously, mineral detection based on distortion modes eliminates the need for manual intervention, improving the accuracy of mineral detection.

Description

Technical Field

[0001] This invention relates to the field of mineral exploration technology, and more specifically to a mineral exploration system and method based on software-defined radio. Background Technology

[0002] Minerals are important raw materials for industrial production, and accurate mineral detection (prospecting) is crucial for economic development.

[0003] Traditional mineral exploration techniques often employ fixed-frequency electromagnetic wave transmitting and receiving equipment, such as ground-penetrating radar or fixed-band electromagnetic wave detectors. These devices typically have fixed hardware structures, while minerals vary significantly across different locations, and detection requirements constantly change. To adapt to different detection needs, traditional exploration equipment requires hardware replacement or upgrades to switch frequency bands, resulting in high costs, poor flexibility, and low exploration efficiency. Furthermore, current technologies rely on manual analysis of received electromagnetic wave signals to determine mineral types and grades, leading to low efficiency and accuracy.

[0004] Therefore, there is an urgent need to provide a prospecting system and method based on software-defined radio, which can achieve highly flexible, low-cost, high-accuracy and high-efficiency prospecting to determine mineral types and grades. Summary of the Invention

[0005] In view of this, it is necessary to provide a prospecting system and method based on software-defined radio to solve the technical problems of existing prospecting systems, which rely on hardware upgrades to change parameters, resulting in poor prospecting flexibility, high costs and low efficiency, as well as the technical problems of mineral type and grade determination relying on manual methods, resulting in low accuracy of mineral type and grade determination.

[0006] In a first aspect, in order to solve the above-mentioned technical problems, the present invention provides a mineral exploration system based on software-defined radio, including: a software-defined radio transmitting device, a software-defined radio receiving device, and a mineral analysis module; The software-defined radio transmitting device is used to generate transmission parameters based on the geological structure and detection requirements of the area to be explored, and to generate an electromagnetic wave transmission signal to be transmitted to the area to be explored based on the transmission parameters. The software-defined radio receiving device is used to receive electromagnetic wave signals after they have propagated in the area to be explored. The mineral analysis module is used to determine the distortion mode based on the electromagnetic wave transmitted signal and the electromagnetic wave received signal, and to determine the mineral type and grade based on the distortion mode.

[0007] In one possible implementation, the detection requirements include mineral type detection requirements, and the transmission parameters include the intensity of the electromagnetic wave transmission signal; the software-defined radio transmitting device includes an intensity generation module and an electromagnetic wave transmission module. The intensity generation module is used to set the intensity of the electromagnetic wave emission signal to a first intensity when the geological structure is a complex geological structure, and to set the intensity of the electromagnetic wave emission signal to a second intensity when the geological structure is a simple geological structure, wherein the first intensity is greater than the second intensity. The intensity generation module is also used to set the intensity of the electromagnetic wave emission signal to a third intensity when the mineral type detection requirement is to detect metallic minerals, and to set the intensity of the electromagnetic wave emission signal to a fourth intensity when the mineral type detection requirement is to detect non-metallic minerals, wherein the third intensity is greater than the fourth intensity. The electromagnetic wave transmitting module is used to generate the electromagnetic wave transmitting signal based on the intensity of the electromagnetic wave transmitting signal.

[0008] In one possible implementation, the software-defined radio transmitting device includes a geological determination module; The geological determination module is used to obtain the number of faults and folds in the area to be explored. When the sum of the number of faults and the number of folds is greater than a preset number, the geological structure is determined to be a complex geological structure. When the sum of the number of faults and the number of folds is less than or equal to the preset number, the geological structure is determined to be a simple geological structure.

[0009] In one possible implementation, the detection requirement also includes a detection range, and the software-defined radio transmitting device further includes a modulation scheme determination module; The modulation mode determination module is used to set the modulation mode of the electromagnetic wave transmission signal to continuous wave modulation when the detection range is less than a preset range, and to set the modulation mode of the electromagnetic wave transmission signal to pulse modulation when the detection range is greater than the preset range. The electromagnetic wave transmitting module is also used to generate the electromagnetic wave transmitting signal based on the intensity of the electromagnetic wave transmitting signal and the modulation method of the electromagnetic wave transmitting signal.

[0010] In one possible implementation, the detection requirements also include mineral detection objectives, the continuous wave modulation includes frequency modulation and phase modulation; the modulation mode determination module includes a continuous wave modulation unit and a discrete modulation unit; The continuous wave modulation unit is used to set the modulation mode of the electromagnetic wave transmission signal to frequency modulation when the detection range is less than the preset range and the purpose of mineral detection is to identify different types of minerals; and to set the modulation mode of the electromagnetic wave transmission signal to phase modulation when the detection range is less than the preset range and the purpose of mineral detection is to measure mineral content. The discrete modulation unit is used to set the modulation mode of the electromagnetic wave transmission signal to pulse modulation when the detection range is greater than a preset range.

[0011] In one possible implementation, the software-defined radio receiving device includes a receiving parameter determination module and an electromagnetic wave receiving module; The receiving parameter determination module is used to generate receiving parameters based on the transmission parameters and the received signal strength indication and signal-to-noise ratio of the electromagnetic wave received signal; the receiving parameters include the gain and bandwidth of the electromagnetic wave received signal; The electromagnetic wave receiving module is used to receive the electromagnetic wave signal based on the receiving parameters.

[0012] In one possible implementation, the mineral analysis module includes a signal feature extraction unit, a distortion mode determination unit, and a mineral analysis unit; The signal feature extraction unit is used to extract the time-domain features, frequency-domain features, phase features, and statistical features of the electromagnetic wave transmitted signal and the electromagnetic wave received signal; The distortion pattern determination unit is used to determine the distortion pattern based on the distortion pattern recognition network model or distortion pattern template, the time domain features, frequency domain features, phase features, and statistical features; The mineral analysis unit is used to match the distortion pattern with the sample patterns in the database, and to take the sample mineral type and sample grade corresponding to the sample pattern that matches the distortion pattern as the mineral type and the grade.

[0013] In one possible implementation, the distortion mode includes linear distortion and nonlinear distortion, wherein the linear distortion includes amplitude distortion, frequency distortion, and phase distortion.

[0014] In one possible implementation, the system further includes a signal processing module; The signal processing module is used to filter, amplify, and digitize the received electromagnetic wave signal.

[0015] Secondly, the present invention also provides a mineral exploration method based on software-defined radio, applicable to the software-defined radio-based mineral exploration system described in any of the above possible implementations, the method comprising: The control software defines the radio transmitting equipment to generate transmission parameters based on the geological structure and detection requirements of the area to be explored, and to generate an electromagnetic wave transmission signal to be transmitted to the area to be explored based on the transmission parameters. The control software defines the radio receiving device for receiving electromagnetic wave signals after they have propagated in the area to be explored. The distortion mode is determined based on the electromagnetic wave transmitted signal and the electromagnetic wave received signal, and the mineral type and grade are determined based on the distortion mode.

[0016] The beneficial effects of this invention are as follows: The prospecting system based on software-defined radio provided by this invention, by setting the system to include software-defined radio transmitting equipment and software-defined radio receiving equipment, utilizes the high flexibility and programmability of software-defined radio technology, enabling the system to quickly adjust the detection scheme according to the characteristics and detection needs of different mines. It can achieve dynamic adjustment of transmission parameters without changing hardware equipment, thereby enabling the transmission parameters to be quickly adapted to different geological structures and detection needs, thus improving the prospecting efficiency of the prospecting system based on software-defined radio.

[0017] Furthermore, when generating emission parameters, this invention takes into account the geological structure and detection requirements of the area to be explored, making the generated emission parameters more consistent with the actual situation, thereby improving the accuracy of determining the mineral types and grades of the area to be explored.

[0018] Furthermore, when performing mineral analysis, this invention determines the distortion mode based on electromagnetic wave transmission and reception signals. It utilizes the characteristic that interference from different minerals and geological structures within the mine during the propagation of electromagnetic wave transmission signals in the area to be explored will be reflected in the signal, causing signal distortion. This enables the determination of mineral types and grades without relying on human experience, thus improving the accuracy of the determined mineral types and grades. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 A schematic diagram of an embodiment of the software-defined radio-based mineral exploration system provided by the present invention; Figure 2 A schematic diagram of an embodiment of the software-defined radio transmitting device provided by the present invention; Figure 3 A schematic diagram of an embodiment of the software-defined radio receiving device provided by the present invention; Figure 4 A schematic diagram of an embodiment of the mineral analysis module provided by the present invention; Figure 5 This is a schematic flowchart of an embodiment of the software-defined radio-based mineral exploration method provided by the present invention. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0022] It should be understood that the illustrative drawings are not drawn to scale. The flowcharts used in this invention illustrate operations implemented according to some embodiments of the invention. It should be understood that the operations in the flowcharts may be implemented out of order, and steps without logical contextual relationships may be reversed or performed simultaneously. Furthermore, those skilled in the art, guided by the content of this invention, may add one or more other operations to the flowcharts, or remove one or more operations from the flowcharts. Some block diagrams shown in the drawings are functional entities and do not necessarily correspond to physically or logically independent entities. These functional entities may be implemented in software, in one or more hardware modules or integrated circuits, or in different network and / or processor systems and / or microcontroller systems.

[0023] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of the invention. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a mutually exclusive, independent, or alternative embodiment. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0024] This invention provides a mineral exploration system and method based on software-defined radio, which will be described below.

[0025] Before demonstrating the embodiments, the Software Defined Radio (SDR) technology will be explained.

[0026] SDR (Single-Relay Radio) is a radio communication system that implements the functions of traditional hardware circuits through software programming. Its core idea is to transfer signal processing (such as modulation / demodulation, filtering, encoding / decoding, etc.) from dedicated hardware to programmable software or digital processors, thereby achieving high flexibility and reconfigurability. It has the following technical characteristics: Flexibility: Communication standards can be switched via software updates without replacing hardware.

[0027] Scalability: Supports rapid deployment of new protocols or algorithms.

[0028] Low cost: Reduces the development of dedicated hardware, lowering production and maintenance costs.

[0029] Figure 1 A schematic diagram of an embodiment of the software-defined radio-based prospecting system provided by the present invention is shown below. Figure 1 As shown, the software-defined radio-based prospecting system 10 includes: a software-defined radio transmitter 100, a software-defined radio receiver 200, and a mineral analysis module 300; The software-defined radio transmitting device 100 is used to generate transmission parameters based on the geological structure and detection requirements of the area to be explored, and to generate an electromagnetic wave transmission signal to be transmitted to the area to be explored based on the transmission parameters; The software-defined radio receiver 200 is used to receive electromagnetic wave signals after propagation in the area to be explored; The mineral analysis module 300 is used to determine the distortion mode based on the electromagnetic wave transmitted signal and the electromagnetic wave received signal, and to determine the mineral type and grade based on the distortion mode.

[0030] The area to be explored is an area including a mine, and the exploration system 10 based on software-defined radio is used to detect the types and grades of minerals in the area to be explored.

[0031] Specifically, the software-defined radio transmitter 100 and the software-defined radio receiver 200 can be respectively located on both sides of the area to be explored to ensure that the electromagnetic wave transmission signal passes through the area to be explored.

[0032] Compared with the prior art, the software-defined radio-based prospecting system 10 provided in this embodiment of the invention, by setting the system to include a software-defined radio transmitter 100 and a software-defined radio receiver 200, utilizes the high flexibility and programmability of software-defined radio technology, enabling the system to quickly adjust the detection scheme according to the characteristics and detection needs of different mines. It can achieve dynamic adjustment of transmission parameters without changing hardware equipment, thereby enabling the transmission parameters to be quickly adapted to different geological structures and detection needs, thus improving the prospecting efficiency of the software-defined radio-based prospecting system.

[0033] Furthermore, in generating emission parameters, the embodiments of the present invention take into account the geological structure and detection requirements of the area to be explored, making the generated emission parameters more in line with the actual situation, thereby improving the accuracy of determining the mineral types and grades of the area to be explored.

[0034] Furthermore, in mineral analysis, this embodiment of the invention determines the distortion mode based on electromagnetic wave transmission and reception signals. It utilizes the characteristic that interference from different minerals and geological structures within the mine during the propagation of electromagnetic wave transmission signals in the area to be explored will be reflected in the signal, causing signal distortion. This enables the determination of mineral types and grades without relying on human experience, thus improving the accuracy of the determined mineral types and grades.

[0035] Since mineral type and grade need to be determined by distortion mode, and the determination of distortion mode depends on the clear and accurate acquisition of electromagnetic wave transmitted and received signals, to avoid the technical problem that the intensity of the electromagnetic wave received signal is too low, resulting in the inability to effectively determine the distortion mode and thus the mineral type and grade, in some embodiments of the present invention, the detection requirements include mineral type detection requirements, and the transmission parameters include the intensity of the electromagnetic wave transmitted signal; such as Figure 2 As shown, the software-defined radio transmitting device 100 includes an intensity generation module 110 and an electromagnetic wave transmitting module 120; The intensity generation module 110 is used to set the intensity of the electromagnetic wave emission signal to a first intensity when the geological structure is a complex geological structure, and to set the intensity of the electromagnetic wave emission signal to a second intensity when the geological structure is a simple geological structure, wherein the first intensity is greater than the second intensity. The intensity generation module 110 is also used to set the intensity of the electromagnetic wave emission signal to the third intensity when the mineral type detection requirement is to detect metallic minerals, and to set the intensity of the electromagnetic wave emission signal to the fourth intensity when the mineral type detection requirement is to detect non-metallic minerals, wherein the third intensity is greater than the fourth intensity. The electromagnetic wave transmitting module 120 is used to generate an electromagnetic wave transmitting signal based on the intensity of the electromagnetic wave transmitting signal.

[0036] It should be understood that the first strength, second strength, third strength and fourth strength can all be strength values ​​or strength range values, and no specific limitation is made here.

[0037] Specifically, electromagnetic wave transmission signals are subject to more scattering and reflection during propagation in complex geological structures, leading to increased signal attenuation. Therefore, by setting the intensity of complex geological structures to be greater than that of simple geological structures, this embodiment of the invention ensures that the software-defined radio receiving device 200 can receive electromagnetic wave reception signals of sufficient intensity in both complex and simple geological structures, thereby ensuring the accuracy of mineral type and grade determination.

[0038] Furthermore, metallic minerals typically possess high electrical conductivity and magnetism, exhibiting strong absorption and reflection capabilities for electromagnetic wave signals. Therefore, by setting the intensity of metallic minerals to be greater than that of non-metallic minerals in this embodiment of the invention, it is possible to further ensure that the software-defined radio receiving device 200 can receive electromagnetic wave signals of sufficient intensity under both metallic and non-metallic mineral detection conditions, thereby further ensuring the accuracy of mineral type and grade determination.

[0039] In a specific embodiment of the present invention, the correspondence between geological structure and intensity, as well as the correspondence between mineral type detection requirements and the intensity of electromagnetic wave transmission signals, can be determined by pre-calibration. The intensity of the electromagnetic wave transmission signal emitted by the software-defined radio transmitting device 100 can then be determined based on these two correspondences.

[0040] In specific embodiments of the present invention, in order to accurately determine the geological structure, in some embodiments of the present invention, such as... Figure 2 As shown, the software-defined radio transmitting device 100 includes a geological determination module 130; The geological determination module 130 is used to obtain the number of faults and folds in the area to be explored. When the sum of the number of faults and folds is greater than the preset number, the geological structure is determined to be a complex geological structure. When the sum of the number of faults and folds is less than or equal to the preset number, the geological structure is determined to be a simple geological structure.

[0041] A fault is a geological structure in which rock strata or rock masses fracture due to tectonic stress and undergo significant displacement along the fracture surface. A fold is a geological structure in which rock strata undergo continuous bending deformation under tectonic stress without fracturing, exhibiting a wavy, undulating shape.

[0042] The presence of faults and folds will exacerbate the attenuation of electromagnetic wave transmission signals. Therefore, in this embodiment of the invention, the sum of faults and folds is used as a condition for judging geological structure, which can improve the accuracy of geological structure judgment.

[0043] In some embodiments of the present invention, the detection requirement also includes a detection range, such as... Figure 2 As shown, the software-defined radio transmitting device 100 also includes a modulation scheme determination module 140; The modulation mode determination module 140 is used to set the modulation mode of the electromagnetic wave transmission signal to continuous wave modulation when the detection range is less than the preset range, and to set the modulation mode of the electromagnetic wave transmission signal to pulse modulation when the detection range is greater than the preset range. The electromagnetic wave transmitting module 120 is also used to generate an electromagnetic wave transmitting signal based on the intensity of the electromagnetic wave transmitting signal and the modulation method of the electromagnetic wave transmitting signal.

[0044] The preset range can be set or adjusted according to the actual application scenario, and no specific limitation is made here.

[0045] Specifically, pulse modulation generates signals with high energy concentration, enabling them to propagate over long distances. Furthermore, the detection depth and resolution can be controlled by adjusting the pulse width and interval, making it suitable for detecting larger detection ranges. Continuous wave modulation generates signals with good stability, allowing for more accurate detection of minute signal changes; therefore, it is suitable for detecting smaller detection ranges. In other words, by setting the modulation method of the electromagnetic wave transmission signal to include pulse modulation and continuous wave modulation, this embodiment of the invention improves the applicability of the software-defined radio-based mineral exploration system 10 within different detection ranges, enabling rapid and accurate determination of mineral types and grades.

[0046] Furthermore, in practical applications, detection requirements may also include mineral identification and mineral content measurement. To adapt to these two different detection requirements, in some embodiments of the present invention, continuous wave modulation includes frequency modulation and phase modulation; thus, as shown... Figure 2 As shown, the modulation mode determination module 140 includes a continuous wave modulation unit 141 and a discrete modulation unit 142; The continuous wave modulation unit 141 is used to set the modulation mode of the electromagnetic wave transmission signal to frequency modulation when the detection range is smaller than the preset range and the purpose of mineral detection is to identify different types of minerals, and to set the modulation mode of the electromagnetic wave transmission signal to phase modulation when the detection range is smaller than the preset range and the purpose of mineral detection is to measure mineral content. The discrete modulation unit 142 is used to set the modulation mode of the electromagnetic wave transmission signal to pulse modulation when the detection range is greater than the preset range.

[0047] Since frequency modulation can change a signal at different frequencies, and different minerals respond differently to electromagnetic waves of different frequencies, analyzing frequency-modulated signals can more accurately identify mineral types. For situations requiring precise measurement of mineral content, phase modulation (PM) may be more suitable, because changes in mineral content affect the phase of electromagnetic waves. By detecting phase changes in the phase-modulated signal, mineral content can be estimated more accurately.

[0048] In other words, the embodiments of the present invention further divide continuous wave modulation into frequency modulation and phase modulation to meet the actual detection needs in different scenarios, so that they can be adapted to the two different needs of mineral type identification and mineral content measurement, thereby further improving the diversity of detection modes and realizing the accurate determination of mineral type and grade.

[0049] The foregoing embodiments all involve dynamically adjusting the transmission parameters of the software-defined radio transmitter 100. The reception parameters of the software-defined radio receiver 200 can also be adjusted. Therefore, to further optimize the received electromagnetic wave signal, in some embodiments of the present invention, such as... Figure 3 As shown, the software-defined radio receiving device 200 includes a receiving parameter determination module 210 and an electromagnetic wave receiving module 220; The receiving parameter determination module 210 is used to generate receiving parameters based on the transmission parameters and the received signal strength indication and signal-to-noise ratio of the electromagnetic wave received signal; The electromagnetic wave receiving module 220 is used to receive electromagnetic wave signals based on receiving parameters.

[0050] This invention generates receiving parameters and receives electromagnetic wave signals based on these parameters. The receiving effect can be optimized by improving the quality of the electromagnetic wave signals, thereby further improving the accuracy of determining the mineral type and grade.

[0051] In a specific embodiment of the present invention, the receiving parameters include the gain and bandwidth of the electromagnetic wave received signal.

[0052] Gain is the factor by which a signal is amplified in the receiving link, usually expressed in decibels (dB). Gain is mainly used to adjust the signal strength to a suitable amplitude range for subsequent processing.

[0053] Bandwidth is the range of signal frequencies that the electromagnetic wave receiving module 220 is allowed to pass through, measured in Hertz (Hz). Bandwidth is used to suppress out-of-band interference.

[0054] In a specific embodiment of the present invention, adjusting the receiving parameters based on the receiving indication strength specifically involves: increasing the gain when the receiving indication strength is low, and decreasing the gain when the receiving indication strength is high.

[0055] Adjusting the receiving parameters based on the signal-to-noise ratio (SNR) is specifically as follows: when the SNR is high, appropriately increase the bandwidth and decrease the gain; when the SNR is low, appropriately decrease the bandwidth and increase the gain.

[0056] It should be noted that the receiving parameters may also include the demodulation algorithm, which must match the modulation method in the transmitting parameters. This will not be elaborated on here.

[0057] To further improve the accuracy and efficiency of determining mineral types and grades, in some embodiments of the present invention, such as... Figure 4 As shown, the mineral analysis module 300 includes a signal feature extraction unit 310, a distortion mode determination unit 320, and a mineral analysis unit 330. The signal feature extraction unit 310 is used to extract the time-domain features, frequency-domain features, phase features, and statistical features of the electromagnetic wave transmitted signal and the electromagnetic wave received signal; The distortion pattern determination unit 320 is used to determine the distortion pattern based on the distortion pattern recognition network model or distortion pattern template, time domain features, frequency domain features, phase features and statistical features; The mineral analysis unit 330 is used to match the distortion pattern with the sample pattern in the database, and uses the sample mineral type and sample grade corresponding to the sample pattern that matches the distortion pattern as the mineral type and grade.

[0058] In this embodiment of the invention, time-domain features, frequency-domain features, phase features, and statistical features are extracted simultaneously during feature extraction. This multi-faceted approach improves the comprehensiveness of the extracted features, thereby enhancing the accuracy of the distortion patterns determined. Furthermore, the mineral type and grade can be determined by matching the determined distortion patterns with sample patterns in the database, thus improving the efficiency of mineral type and grade determination.

[0059] Among them, the time-domain features include: Amplitude: The instantaneous value of a signal at a given moment. Changes in amplitude can reflect the strength of the signal. For example, in communication systems, amplitude attenuation may indicate that the signal has been lost during transmission.

[0060] Pulse width: For pulse signals, pulse width refers to the length of time a pulse lasts from start to end. Variations in pulse width can affect the signal's information carrying capacity and transmission efficiency.

[0061] Rise time and fall time: Rise time is the time required for a signal to rise from a low level to a high level, while fall time is the time required for a signal to fall from a high level to a low level. These two parameters reflect the rate of change of the signal.

[0062] Frequency domain characteristics include: Frequency: The frequency of a signal represents the number of cycles it completes per unit of time. Signals of different frequencies have different characteristics; for example, in wireless communication, different frequency bands are used for different communication services.

[0063] Bandwidth: The frequency range occupied by a signal. The size of the bandwidth determines the amount of information a signal can carry; the wider the bandwidth, the more information the signal can transmit.

[0064] Spectral distribution: describes the energy distribution of a signal at different frequencies. By analyzing the spectral distribution, we can understand the frequency components and energy concentration areas of the signal. For example, in audio signal processing, the spectral distribution can reflect the timbre characteristics of a sound.

[0065] Phase characteristics include Phase: Represents the relative position of a signal at a certain moment.

[0066] Statistical characteristics include: Mean: The average value of the signal amplitude. The mean can reflect the DC component of the signal.

[0067] Variance: Describes the degree of dispersion of the signal amplitude relative to the mean. The larger the variance, the greater the fluctuation of the signal.

[0068] Kurtosis and skewness: Kurtosis describes the sharpness of the signal amplitude distribution, while skewness describes the symmetry of the signal amplitude distribution.

[0069] In a specific embodiment of the present invention, the distortion pattern recognition network can be any of the following: support vector machine (SVM), decision tree, neural network, etc. Determining the distortion pattern based on the distortion pattern recognition network specifically involves inputting time-domain features, frequency-domain features, phase features, and statistical features into the distortion pattern recognition network to obtain the distortion pattern.

[0070] In a specific embodiment of the present invention, determining the distortion mode based on the distortion mode template specifically involves: pre-defining template signals for various distortion modes, and then matching the time-domain features, frequency-domain features, phase features, and statistical features with the template signals. The distortion mode corresponding to the template with the highest matching degree is the distortion mode of the region to be explored.

[0071] In some other embodiments of the present invention, distortion modes can also be determined through statistical analysis. Specifically, cluster analysis is performed on a large number of received signals to group signals with similar characteristics into one category. Each category of signals may correspond to a distortion mode, and the corresponding distortion mode can be determined by analyzing the characteristics of each category of signals.

[0072] In a specific embodiment of the present invention, the distortion modes include linear distortion and nonlinear distortion, and linear distortion includes amplitude distortion, frequency distortion and phase distortion.

[0073] It should be noted that in some embodiments of the present invention, the distortion pattern recognition network model or the distortion pattern template can directly identify amplitude distortion, frequency distortion and phase distortion. In some other embodiments of the present invention, the distortion pattern recognition network model or the distortion pattern template only detects whether the distortion is linear or nonlinear. When the detection result is linear distortion, the amplitude, frequency and phase of the electromagnetic wave transmitted signal and the electromagnetic wave received signal can be calculated to obtain the degree of amplitude distortion, the degree of frequency distortion and the degree of phase distortion.

[0074] To avoid the adverse effects of noise and other factors on the received electromagnetic wave signal, in some embodiments of the present invention, such as... Figure 1 As shown, the software-defined radio-based prospecting system 10 also includes a signal processing module 400; The signal processing module 400 is used to filter, amplify, and digitize the received electromagnetic wave signal.

[0075] This invention, through filtering the received electromagnetic wave signal, removes noise and interference, improving the signal-to-noise ratio. Then, the received electromagnetic wave signal is amplified and digitized to make it more suitable for subsequent analysis.

[0076] In summary, the software-defined radio (SDR) based prospecting system provided in this invention offers the following advantages: 1. Since both the SDR transmitting and receiving devices can be controlled and redefined via software, the system can easily adapt to the geological conditions and prospecting needs of different mines. Simply modifying the software program allows for changes to the transmitted and received electromagnetic wave parameters, enabling different prospecting modes and providing high flexibility. 2. Compared to traditional dedicated prospecting equipment, the hardware costs of the SDR transmitting and receiving devices are lower, and their functionality can be expanded through software upgrades, eliminating the need for frequent hardware replacements. This significantly reduces prospecting costs. 3. Through precise detection and analysis of signal distortion, combined with a rich database and advanced algorithms, the system can more accurately determine the mineral types and grades within the mine, improving the reliability and accuracy of the prospecting results.

[0077] Correspondingly, this embodiment of the invention also provides a mineral exploration method based on software-defined radio, applicable to any of the software-defined radio-based mineral exploration systems described above, such as... Figure 5 As shown, the prospecting methods based on software-defined radio include: S501, The control software defines the radio transmitting equipment to generate transmission parameters based on the geological structure and detection requirements of the area to be explored, and generates electromagnetic wave transmission signals to be transmitted to the area to be explored based on the transmission parameters; S502, The control software defines the radio receiving device for receiving electromagnetic wave signals after they have propagated in the area to be explored; S503. Determine the distortion mode based on the electromagnetic wave transmission signal and the electromagnetic wave reception signal, and determine the mineral type and grade based on the distortion mode.

[0078] It should be noted that the prospecting method based on software-defined radio provided in the above embodiments can realize the technical solutions described in the above prospecting system embodiments based on software-defined radio. The principles or specific implementation details of each of the above steps can be found in the corresponding content in the above prospecting system embodiments based on software-defined radio, which will not be repeated here.

[0079] Those skilled in the art will understand that all or part of the processes of the methods described in the above embodiments can be implemented by a computer program instructing related hardware (such as a processor, controller, etc.), and the computer program can be stored in a computer-readable storage medium. The computer-readable storage medium may be a disk, optical disk, read-only memory, or random access memory, etc.

[0080] The above provides a detailed description of a software-defined radio-based prospecting system and method provided by the present invention. Specific examples have been used to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of the present invention. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of the present invention. Therefore, the content of this specification should not be construed as a limitation of the present invention.

Claims

1. A software defined radio based exploration system, characterized by, include: Software-defined radio transmitting equipment, software-defined radio receiving equipment, and mineral analysis module; The software-defined radio transmitting device is used to generate transmission parameters based on the geological structure and detection requirements of the area to be explored, and to generate an electromagnetic wave transmission signal to be transmitted to the area to be explored based on the transmission parameters. The detection requirements include the detection range and the purpose of mineral detection; The software-defined radio receiving device is used to receive electromagnetic wave signals after they have propagated in the area to be explored. The mineral analysis module is used to determine the distortion mode based on the electromagnetic wave transmitted signal and the electromagnetic wave received signal, and to determine the mineral type and grade based on the distortion mode; The software-defined radio transmitting device further includes a modulation mode determination module, which includes a continuous wave modulation unit. The continuous wave modulation unit is used to set the modulation mode of the electromagnetic wave transmission signal to frequency modulation in continuous wave modulation when the detection range is less than a preset range and the purpose of mineral detection is to identify different types of minerals, and to set the modulation mode of the electromagnetic wave transmission signal to phase modulation in continuous wave modulation when the detection range is less than the preset range and the purpose of mineral detection is to measure mineral content.

2. The prospecting system based on software-defined radio according to claim 1, characterized in that, The detection requirements also include mineral type detection requirements, and the transmission parameters include the intensity of the electromagnetic wave transmission signal; the software-defined radio transmitting device includes an intensity generation module and an electromagnetic wave transmission module; The intensity generation module is used to set the intensity of the electromagnetic wave emission signal to a first intensity when the geological structure is a complex geological structure, and to set the intensity of the electromagnetic wave emission signal to a second intensity when the geological structure is a simple geological structure, wherein the first intensity is greater than the second intensity. The intensity generation module is also used to set the intensity of the electromagnetic wave emission signal to a third intensity when the mineral type detection requirement is to detect metallic minerals, and to set the intensity of the electromagnetic wave emission signal to a fourth intensity when the mineral type detection requirement is to detect non-metallic minerals, wherein the third intensity is greater than the fourth intensity. The electromagnetic wave transmitting module is used to generate the electromagnetic wave transmitting signal based on the intensity of the electromagnetic wave transmitting signal.

3. The prospecting system based on software-defined radio according to claim 2, characterized in that, The software-defined radio transmitting device includes a geological determination module; The geological determination module is used to obtain the number of faults and folds in the area to be explored. When the sum of the number of faults and the number of folds is greater than a preset number, the geological structure is determined to be a complex geological structure. When the sum of the number of faults and the number of folds is less than or equal to the preset number, the geological structure is determined to be a simple geological structure.

4. The prospecting system based on software-defined radio according to claim 2, characterized in that, The modulation mode determination module further includes a discrete modulation unit, which is used to set the modulation mode of the electromagnetic wave transmission signal to pulse modulation when the detection range is greater than a preset range. The electromagnetic wave transmitting module is also used to generate the electromagnetic wave transmitting signal based on the intensity of the electromagnetic wave transmitting signal and the modulation method of the electromagnetic wave transmitting signal.

5. The prospecting system based on software-defined radio according to claim 1, characterized in that, The software-defined radio receiving device includes a receiving parameter determination module and an electromagnetic wave receiving module; The receiving parameter determination module is used to generate receiving parameters based on the transmission parameters and the received signal strength indication and signal-to-noise ratio of the electromagnetic wave received signal; the receiving parameters include the gain and bandwidth of the electromagnetic wave received signal; The electromagnetic wave receiving module is used to receive the electromagnetic wave signal based on the receiving parameters.

6. The prospecting system based on software-defined radio according to claim 1, characterized in that, The mineral analysis module includes a signal feature extraction unit, a distortion mode determination unit, and a mineral analysis unit. The signal feature extraction unit is used to extract the time-domain features, frequency-domain features, phase features, and statistical features of the electromagnetic wave transmitted signal and the electromagnetic wave received signal; The distortion pattern determination unit is used to determine the distortion pattern based on the distortion pattern recognition network model or distortion pattern template, the time domain features, frequency domain features, phase features, and statistical features; The mineral analysis unit is used to match the distortion pattern with the sample patterns in the database, and to take the sample mineral type and sample grade corresponding to the sample pattern that matches the distortion pattern as the mineral type and the grade.

7. The prospecting system based on software-defined radio according to claim 6, characterized in that, The distortion modes include linear distortion and nonlinear distortion, and the linear distortion includes amplitude distortion, frequency distortion and phase distortion.

8. The prospecting system based on software-defined radio according to any one of claims 1-7, characterized in that, The system also includes a signal processing module; The signal processing module is used to filter, amplify, and digitize the received electromagnetic wave signal.

9. A mineral exploration method based on software-defined radio, characterized in that, The method, applicable to the software-defined radio-based prospecting system according to any one of claims 1-8, comprises: The control software defines the radio transmitting equipment to generate transmission parameters based on the geological structure and detection requirements of the area to be explored, and to generate an electromagnetic wave transmission signal to be transmitted to the area to be explored based on the transmission parameters. The control software defines the radio receiving device for receiving electromagnetic wave signals after they have propagated in the area to be explored. The distortion mode is determined based on the electromagnetic wave transmitted signal and the electromagnetic wave received signal, and the mineral type and grade are determined based on the distortion mode.

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