Method and system for acquiring frequency offset of communication equipment based on positioning technology

Abstract

The invention relates to the technical field of communication, in particular to a method for acquiring frequency offset of communication equipment based on a positioning technology, which comprises the following steps: S1, acquiring position information of the communication equipment: acquiring geographical position information of the communication equipment by using a GPS positioning function and the positioning technology; s2, calculating the speed and the acceleration of the equipment: calculating the speed and the acceleration of the equipment according to the position change of the equipment; and S3, measuring the frequency offset by using the Doppler effect: calculating the frequency offset value of the communication equipment according to the speed and the acceleration of the equipment in combination with the change of the received signal frequency. Measurement and analysis are carried out by using the Doppler effect and the signal time delay parameter, so that the frequency offset information of the communication equipment can be accurately obtained, and powerful support is provided for optimizing the performance of a communication system; the method has high precision and reliability, and can effectively optimize the performance of a communication system and improve the communication quality in practical application.

Description

Technical Field

[0001] The present invention relates to the field of communication technology, and in particular to a method and system for obtaining frequency deviation of communication equipment based on positioning technology. Background Art

[0002] Communication technology is changing with each passing day, especially wireless communication technology, which is particularly important in today's era of rapid development of the information industry. The application of wireless communication technology has naturally become an important direction of scientific and technological development.

[0003] In addition, with the development of transportation, people's travel, transportation and transmission are becoming more and more convenient. One of the important technical indicators is the continuous improvement of speed. With the innovation of technology, the technical problems encountered are becoming more and more difficult to solve, such as wireless communication problems in high-speed driving projects, such as Doppler frequency deviation.

[0004] For example, when a high-speed train is running, the wireless signal received in the carriage will produce Doppler frequency deviation. When the train runs at a speed of 300 km / h, the GSM900MHz signal received in the carriage will produce a frequency deviation of about 300Hz. At this time, if a cell handover is performed, the wireless signal received by the mobile station will produce a frequency jump of 600Hz, which will cause the mobile station communication to be interrupted, resulting in unpredictable consequences.

[0005] The introduction of a vehicle-mounted repeater with frequency deviation compensation function can effectively reduce the frequency deviation of wireless signals received by the mobile station, improve wireless signal coverage, and enhance communication quality.

[0006] If the vehicle-mounted repeater implements the frequency offset compensation function, it is necessary to first detect the Doppler frequency offset of the wireless signal to be compensated. Frequency offset measurement can be done directly, that is, by measuring the frequency difference between the received wireless signal frequency and the reference signal. However, this method is complex and requires a built-in frequency reference.

[0007] The existence of frequency deviation may cause errors in the reception and transmission of communication signals, thereby reducing the communication quality. Summary of the invention

[0008] The purpose of the present invention is to provide a method and system for obtaining the frequency deviation of a communication device based on positioning technology, so as to solve the problems raised in the above background technology.

[0009] To achieve the above object, the present invention provides the following technical solution: a method for obtaining the frequency deviation of a communication device based on positioning technology, comprising the following steps:

[0010] S1. Obtaining the location information of the communication device: using GPS positioning function and positioning technology to obtain the geographical location information of the communication device;

[0011] S2. Calculate the speed and acceleration of the device: Calculate the speed and acceleration of the device according to the position change of the device;

[0012] S3. Measuring frequency deviation using the Doppler effect: Calculate the frequency deviation value of the communication device based on the speed and acceleration of the device and the change in the received signal frequency;

[0013] S4. Correcting frequency deviation: Correcting the frequency deviation of the communication equipment by correcting the measured frequency deviation.

[0014] Preferably, the positioning technology includes base station positioning, and the positioning technology is used to obtain the distance and relative motion parameters between the mobile terminal and the base station, and then calculate the frequency deviation information.

[0015] Preferably, in step S1, the geographical location information of the device is obtained by using the GPS positioning function, and the speed and acceleration parameters of the device are further calculated by obtaining the location information of the device.

[0016] Preferably, in said S4, correcting the frequency deviation, the frequency deviation of the communication device is measured in different communication environments, and based on the experimental results, the accuracy and stability of the method in different situations are analyzed, and its performance is evaluated.

[0017] Preferably, in said S3, using the Doppler effect to measure the frequency deviation, a method of using the acceleration and acceleration of the efficient and error-free computing device is used to perform data calculation, wherein the calculation method comprises the following steps:

[0018] S3-1. Use multiple sensors such as accelerometers and gyroscopes to obtain the posture and dynamic information of the device.

[0019] Preferably, the method for efficiently and error-freely calculating the acceleration and acceleration of the device performs data calculation, wherein the calculation method comprises the following steps:

[0020] S3-2, data filtering: Filter the sensor data to remove noise and outliers, smooth the data flow, and improve signal quality.

[0021] Preferably, the method for efficiently and error-freely calculating the acceleration and acceleration of the device performs data calculation, wherein the calculation method comprises the following steps:

[0022] S3-3, data fusion: The filtered sensor data is fused, and the Kalman filter fusion algorithm is used to comprehensively calculate the data of multiple sensors to obtain more accurate acceleration and acceleration results.

[0023] Preferably, the method for efficiently and error-freely calculating the acceleration and acceleration of the device performs data calculation, wherein the calculation method comprises the following steps:

[0024] S3-4. Dynamic correction: Perform dynamic correction based on the actual movement of the equipment to further improve the accuracy of the calculation results.

[0025] A system for obtaining frequency deviation of communication equipment based on positioning technology, the system includes a data acquisition module, a data calculation module and a data correction module;

[0026] The data acquisition module includes basic positioning hardware equipment to obtain device positioning data information and feed it back to the system.

[0027] Preferably, the basic positioning hardware equipment includes a GPS transceiver platform, a GPS positioning base station and a GPS mobile terminal.

[0028] Compared with the prior art, the present invention has the following beneficial effects:

[0029] 1. By using the Doppler effect and signal time delay parameters for measurement and analysis, the frequency deviation information of the communication equipment can be accurately obtained, providing strong support for optimizing the performance of the communication system;

[0030] 2. This method has high accuracy and reliability, and can effectively optimize the performance of the communication system and improve the communication quality in practical applications;

[0031] 3. Efficient and error-free: By optimizing the sensor's data processing and fusion algorithms, calculation errors are reduced and the accuracy of measurement results is improved.

[0032] 4. Multiple data sources: Utilize data from multiple sensors and comprehensively consider information from different angles and axes to gain a more comprehensive understanding of the device’s posture and dynamic characteristics.

[0033] 5. Dynamic correction: Perform dynamic correction according to the actual movement of the equipment, adjust the calculation parameters, and further improve the accuracy and stability of the results. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0035] Figure 1 A flow chart of a method for obtaining a frequency deviation of a communication device based on positioning technology according to the present invention;

[0036] Figure 2 The method flow of the invention for efficiently and error-freely calculating the acceleration and acceleration of a device;

[0037] Figure 3 A system block diagram of the present invention for obtaining the frequency deviation of a communication device based on the positioning technology;

[0038] Figure 4 This is a diagram of the basic positioning hardware equipment of the present invention. DETAILED DESCRIPTION

[0039] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0040] See also Figures 1 to 4 , the present invention provides a technical solution:

[0041] A method for obtaining a frequency deviation of a communication device based on positioning technology comprises the following steps:

[0042] S1. Obtaining the location information of the communication device: using GPS positioning function and positioning technology to obtain the geographical location information of the communication device;

[0043] S2. Calculate the speed and acceleration of the device: Calculate the speed and acceleration of the device according to the position change of the device;

[0044] S3. Measuring frequency deviation using the Doppler effect: Calculate the frequency deviation value of the communication device based on the speed and acceleration of the device and the change in the received signal frequency;

[0045] S4. Correcting frequency deviation: Correcting the frequency deviation of the communication equipment by correcting the measured frequency deviation.

[0046] The positioning technology includes base station positioning, and the positioning technology is used to obtain the distance and relative motion parameters between the mobile terminal and the base station, and then calculate the frequency deviation information.

[0047] In step S1, the geographical location information of the device is obtained by using the GPS positioning function, and the speed and acceleration parameters of the device are further calculated by obtaining the location information of the device.

[0048] In the above S4, correcting the frequency deviation, the frequency deviation of the communication device is measured in different communication environments. Based on the experimental results, the accuracy and stability of the method in different situations are analyzed, and its performance is evaluated.

[0049] S3, using the Doppler effect to measure frequency deviation, a method of using an efficient and error-free calculation device to calculate the acceleration and acceleration of the data, wherein the calculation method comprises the following steps:

[0050] S3-1, using multiple sensors such as acceleration sensors and gyroscopes to obtain the posture and dynamic information of the device;

[0051] S3-2, data filtering: Filter the sensor data to remove noise and outliers, smooth the data flow, and improve signal quality.

[0052] S3-3, data fusion: The filtered sensor data is fused, and the Kalman filter fusion algorithm is used to comprehensively calculate the data of multiple sensors to obtain more accurate acceleration and acceleration results.

[0053] S3-4. Dynamic correction: Perform dynamic correction based on the actual movement of the equipment to further improve the accuracy of the calculation results.

[0054] A system for obtaining frequency deviation of communication equipment based on positioning technology, the system includes a data acquisition module, a data calculation module and a data correction module;

[0055] The data acquisition module includes basic positioning hardware equipment to obtain device positioning data information and feed it back to the system.

[0056] The basic positioning hardware equipment includes a GPS transceiver platform, a GPS positioning base station and a GPS mobile terminal.

[0057] 1. By using the Doppler effect and signal time delay parameters for measurement and analysis, the frequency deviation information of the communication equipment can be accurately obtained, providing strong support for optimizing the performance of the communication system;

[0058] 2. This method has high accuracy and reliability, and can effectively optimize the performance of the communication system and improve the communication quality in practical applications;

[0059] 3. Efficient and error-free: By optimizing the sensor's data processing and fusion algorithms, calculation errors are reduced and the accuracy of measurement results is improved.

[0060] 4. Multiple data sources: Utilize data from multiple sensors and comprehensively consider information from different angles and axes to gain a more comprehensive understanding of the device’s posture and dynamic characteristics.

[0061] 5. Dynamic correction: Perform dynamic correction according to the actual movement of the equipment, adjust the calculation parameters, and further improve the accuracy and stability of the results.

[0062] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein. However, these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A method for obtaining frequency deviation of a communication device based on positioning technology, characterized in that: The steps include: S1. Obtaining the location information of the communication device: using GPS positioning function and positioning technology to obtain the geographical location information of the communication device; S2. Calculate the speed and acceleration of the device: Calculate the speed and acceleration of the device according to the position change of the device; S3. Measuring frequency deviation using the Doppler effect: Calculate the frequency deviation value of the communication device based on the speed and acceleration of the device and the change in the received signal frequency; S4. Correcting frequency deviation: Correcting the frequency deviation of the communication equipment by correcting the measured frequency deviation.

2. The method for obtaining the frequency deviation of a communication device based on positioning technology according to claim 1, characterized in that: The positioning technology includes base station positioning, and the positioning technology is used to obtain the distance and relative motion parameters between the mobile terminal and the base station, and then calculate the frequency deviation information.

3. The method for obtaining the frequency deviation of a communication device based on positioning technology according to claim 1, characterized in that: In step S1, the geographical location information of the device is obtained by using the GPS positioning function, and the speed and acceleration parameters of the device are further calculated by obtaining the location information of the device.

4. The method for obtaining the frequency deviation of a communication device based on positioning technology according to claim 1, characterized in that: In the above S4, correcting the frequency deviation, the frequency deviation of the communication device is measured in different communication environments. Based on the experimental results, the accuracy and stability of the method in different situations are analyzed, and its performance is evaluated.

5. The method for obtaining the frequency deviation of a communication device based on positioning technology according to claim 1, characterized in that: S3, using the Doppler effect to measure frequency deviation, a method of using an efficient and error-free calculation device to calculate the acceleration and acceleration of the data, wherein the calculation method comprises the following steps: S3-1. Use multiple sensors such as accelerometers and gyroscopes to obtain the device's posture and dynamic information.

6. A method for obtaining frequency deviation of communication equipment based on positioning technology according to claim 5, characterized in that: The method for efficiently and error-freely calculating the acceleration and acceleration of a device performs data calculation, wherein the calculation method comprises the following steps: S3-2, data filtering: Filter the sensor data to remove noise and outliers, smooth the data flow, and improve signal quality.

7. The method for obtaining the frequency deviation of a communication device based on positioning technology according to claim 5, characterized in that: The method for efficiently and error-freely calculating the acceleration and acceleration of a device performs data calculation, wherein the calculation method comprises the following steps: S3-3, data fusion: The filtered sensor data is fused, and the Kalman filter fusion algorithm is used to comprehensively calculate the data of multiple sensors to obtain more accurate acceleration and acceleration results.

8. The method for obtaining the frequency deviation of a communication device based on positioning technology according to claim 5, characterized in that: The method for efficiently and error-freely calculating the acceleration and acceleration of a device performs data calculation, wherein the calculation method comprises the following steps: S3-4. Dynamic correction: Perform dynamic correction based on the actual movement of the equipment to further improve the accuracy of the calculation results.

9. A system for obtaining frequency deviation of communication equipment based on positioning technology according to any one of claims 1 to 8, characterized in that: The system includes a data acquisition module, a data calculation module and a data correction module; The data acquisition module includes basic positioning hardware equipment to obtain device positioning data information and feed it back to the system.

10. A system for obtaining frequency deviation of communication equipment based on positioning technology according to claim 9, characterized in that: The basic positioning hardware equipment includes a GPS transceiver platform, a GPS positioning base station and a GPS mobile terminal.

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