CN111273221A - Sonar receiving beam horizontal directivity measuring method, device and storage medium - Google Patents
Sonar receiving beam horizontal directivity measuring method, device and storage medium Download PDFInfo
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- CN111273221A CN111273221A CN202010129480.7A CN202010129480A CN111273221A CN 111273221 A CN111273221 A CN 111273221A CN 202010129480 A CN202010129480 A CN 202010129480A CN 111273221 A CN111273221 A CN 111273221A
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- angle data
- rotary table
- measurement software
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S3/00—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received
- G01S3/80—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received using ultrasonic, sonic or infrasonic waves
- G01S3/802—Systems for determining direction or deviation from predetermined direction
- G01S3/809—Rotating or oscillating beam systems using continuous analysis of received signal for determining direction in the plane of rotation or oscillation or for determining deviation from a predetermined direction in such a plane
Abstract
The application relates to a sonar receiving beam horizontal directivity measurement method, device and storage medium, which belong to the technical field of sonar devices and comprise: after the rotary table starts to rotate, sending angle data to measurement software at regular time, wherein an acoustic array is fixed on the rotary table; the measuring software transmits the received angle data to the signal processor; the signal processor returns the current beam and angle data to the measurement software after receiving the primary angle data; the measurement software records beam and angle data returned by the signal processor and draws a beam pattern corresponding to the beam and the angle in real time; and when the rotary table stops rotating, the measurement software calculates the beam parameters of each beam and draws the calculated beam parameters in a beam pattern. The problems that angle data and beam data need to be manually synchronized and have large errors in the existing scheme are solved; the effect that automatic control can be achieved and the accuracy of the calculated beam pattern is improved is achieved.
Description
Technical Field
The application relates to a sonar receiving beam horizontal directivity measuring method, a sonar receiving beam horizontal directivity measuring device and a storage medium, and belongs to the technical field of sonar devices.
Background
The traditional measurement software runs on a computer embedded in a signal processor, a turntable rotates at a specified speed at a constant speed, the measurement software reads beam data at regular time, draws a beam pattern in real time, and finally stores the original beam data.
The angle data and the beam data need to be synchronized manually, the measurement software starts measuring and the turntable starts manually at the same time, the turntable needs to rotate at a constant speed, and the rotating speed of the turntable needs to be strictly matched with the interval of reading the beam data by the measurement software. And because the precision of manual synchronization cannot be guaranteed, the error of the beam parameters acquired by the method is large.
Disclosure of Invention
The application provides a sonar receiving beam horizontal directivity measuring method, a sonar receiving beam horizontal directivity measuring device and a storage medium, and can solve the problem that beam parameter errors obtained through calculation in the existing scheme are large. The application provides the following technical scheme:
in a first aspect, a sonar receiving beam horizontal directivity measurement method is provided, the method includes:
after the rotary table starts to rotate, sending angle data to measurement software at regular time, wherein an acoustic array is fixed on the rotary table;
the measuring software transmits the received angle data to the signal processor;
the signal processor returns the current beam and angle data to the measurement software after receiving the primary angle data;
the measurement software records beam and angle data returned by the signal processor and draws a beam pattern corresponding to the beam and the angle in real time;
and when the rotary table stops rotating, the measurement software calculates the beam parameters of each beam and draws the calculated beam parameters in a beam pattern.
Optionally, the beam parameters include: a mainlobe height, a mainlobe width, a left sidelobe mainlobe ratio, and a right sidelobe mainlobe ratio.
Optionally, the method further includes:
receiving a correction request for correcting the beam parameters;
and correcting the beam parameters according to the correction request.
Optionally, the method further includes:
receiving a selection signal for selecting a target beam;
and amplifying and drawing a beam pattern of the target beam after receiving the selection signal.
Optionally, before the turntable rotates, controlling the 0 degree of the turntable to overlap with the center of the acoustic matrix 0 beam.
Optionally, the method further includes:
the calculated beam parameters are stored in a spreadsheet.
In a second aspect, there is provided a sonar reception beam horizontal directivity measurement apparatus, the apparatus comprising a memory having stored therein at least one program instruction, and a processor for implementing the method of the first aspect by loading and executing the at least one program instruction.
In a third aspect, a computer storage medium is provided, wherein at least one program instruction is stored in the storage medium, and the at least one program instruction is loaded and executed by a processor to implement the method of the first aspect.
The beneficial effect of this application lies in:
the method comprises the steps that angle data are sent to measurement software at fixed time after a rotary table starts to rotate, and an acoustic array is fixed on the rotary table; the measuring software transmits the received angle data to the signal processor; received once by the signal processor
Returning the current beam and angle data to the measurement software after the angle data; the measurement software records beam and angle data returned by the signal processor and draws a beam pattern corresponding to the beam and the angle in real time; when the rotary table stops rotating, the measurement software calculates the beam parameters of each beam and draws the calculated beam parameters in a beam pattern; the problems that angle data and beam data need to be manually synchronized and have large errors in the existing scheme are solved; the effect that automatic control can be achieved and the accuracy of the calculated beam pattern is improved is achieved. By automatically calculating the beam parameters, the acquisition efficiency of acquiring the beam parameters is improved. Meanwhile, the rotating speed and the rotating direction of the rotary table are not required, so that the rotary table can rotate at the highest speed, the rotary table does not need to rotate at a certain fixed speed or in a fixed direction, and the acquisition efficiency of the beam parameters is further improved.
The foregoing description is only an overview of the technical solutions of the present application, and in order to make the technical solutions of the present application more clear and clear, and to implement the technical solutions according to the content of the description, the following detailed description is made with reference to the preferred embodiments of the present application and the accompanying drawings.
Drawings
Fig. 1 is a flow chart of a method for measuring horizontal directivity of a sonar receiving beam according to the present invention.
Detailed Description
The following detailed description of embodiments of the present application will be described in conjunction with the accompanying drawings and examples. The following examples are intended to illustrate the present application but are not intended to limit the scope of the present application.
Referring to fig. 1, it shows a flowchart of a method for measuring horizontal directivity of a sonar receiving beam according to an embodiment of the present invention, as shown in fig. 1, the method includes:
before the rotary table rotates, a setting person can connect the signal processor with the PC running the measurement software and connect the rotary table with the PC running the measurement software; running sonar equipment state, running measurement software, running a turntable upper computer, laying a sound source and setting working parameters; and rotating the rotary table, and synchronously acquiring beam and angle data by the measurement software.
Specifically, the input end of the serial port distributor is connected with the rotary table, the output 1 is connected with the upper computer of the rotary table, and the output 2 is connected with the PC running the measuring software. The rotary table is operated by an upper computer, and the measuring software only receives angle data sent by the rotary table and does not send instructions to the rotary table. The PC is connected with the signal processor by a network cable. And opening the sonar equipment, and setting network parameters of the signal processor. And running measurement software, setting network parameters and serial port parameters, and opening the serial port to start receiving angle data. And operating the upper computer of the rotary table to enable the 0-degree rotary table to be overlapped with the center of the No. 0 wave beam of the acoustic array, setting working parameters, and not sending data when the rotary table does not rotate. And laying a sound source, setting working parameters and starting to transmit signals.
Thereafter, after the turntable starts to rotate, the angle data is periodically sent to the measurement software.
After the measuring software receives the angle data once, the measuring software immediately forwards the received angle data to the signal processor.
103, the signal processor returns the current beam and angle data to the measurement software after receiving the primary angle data;
and the signal processor immediately returns the current beam and angle data to the measurement software after receiving the angle data.
And step 104, recording the beam and angle data returned by the signal processor by the measurement software, and drawing a beam pattern corresponding to the beam and the angle in real time.
After receiving the beam and angle data, the measurement software simultaneously maps the beam patterns of the respective beams. In practical implementation, the measurement software draws each beam in the form of a small graph, and when a user needs to view a certain beam, the user clicks the corresponding small graph, that is, after receiving a selection signal for selecting a target beam, the user additionally draws a beam graph of the target beam in the form of a large graph. In addition, in order to center the main lobe of each beam for display, the angle information is processed for different beams.
And 105, when the rotary table stops rotating, calculating the beam parameter of each beam by the measurement software, and drawing the calculated beam parameter in a beam pattern.
When the turntable stops rotating after being in place, the step of receiving the beam and angle data by the measurement software is also stopped, namely the measurement software stops collecting data, at the moment, the measurement software can calculate the beam parameter of each beam and draw the calculated beam parameter in the beam pattern. Wherein the beam parameters include: a mainlobe height, a mainlobe width, a left sidelobe mainlobe ratio, and a right sidelobe mainlobe ratio.
After checking the beam pattern, if the checker determines that the data is wrong, the checker may correct the data, that is, the method further includes:
firstly, receiving a correction request for correcting the beam parameter;
for example, the verifier may correct a certain beam parameter by mouse clicking in the beam pattern
Second, the beam parameter is modified according to the modification request.
Thereafter, the measurement software may store the finally determined individual beam parameters, for example, in a spreadsheet.
The method comprises the steps that angle data are sent to measurement software at fixed time after a rotary table starts to rotate, and an acoustic array is fixed on the rotary table; the measuring software transmits the received angle data to the signal processor; received once by the signal processor
Returning the current beam and angle data to the measurement software after the angle data; the measurement software records beam and angle data returned by the signal processor and draws a beam pattern corresponding to the beam and the angle in real time; the problems that angle data and beam data need to be manually synchronized and have large errors in the existing scheme are solved; the effect that automatic control can be achieved and the accuracy of the calculated beam pattern is improved is achieved. By automatically calculating the beam parameters, the acquisition efficiency of acquiring the beam parameters is improved. Meanwhile, the rotating speed and the rotating direction of the rotary table are not required, so that the rotary table can rotate at the highest speed, the rotary table does not need to rotate at a certain fixed speed or in a fixed direction, and the acquisition efficiency of the beam parameters is further improved.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (8)
1. A sonar receiving beam horizontal directivity measuring method is characterized by comprising the following steps:
after the rotary table starts to rotate, sending angle data to measurement software at regular time, wherein an acoustic array is fixed on the rotary table;
the measuring software transmits the received angle data to the signal processor;
the signal processor returns the current beam and angle data to the measurement software after receiving the primary angle data;
the measurement software records beam and angle data returned by the signal processor and draws a beam pattern corresponding to the beam and the angle in real time;
and when the rotary table stops rotating, the measurement software calculates the beam parameters of each beam and draws the calculated beam parameters in a beam pattern.
2. The method of claim 1, wherein the beam parameters comprise: a mainlobe height, a mainlobe width, a left sidelobe mainlobe ratio, and a right sidelobe mainlobe ratio.
3. The method according to claim 1 or 2, characterized in that the method further comprises:
receiving a correction request for correcting the beam parameters;
and correcting the beam parameters according to the correction request.
4. The method of claim 1, further comprising:
receiving a selection signal for selecting a target beam;
and amplifying and drawing a beam pattern of the target beam after receiving the selection signal.
5. The method of claim 1, wherein the turret is controlled to overlap 0 degrees of the acoustic base array with the acoustic matrix # 0 beam center before the turret rotates.
6. The method of claim 1, further comprising:
the calculated beam parameters are stored in a spreadsheet.
7. A sonar receive beam horizontal directivity measurement device, characterized in that the device comprises a memory having stored therein at least one program instruction, and a processor for implementing the method according to any one of claims 1 to 6 by loading and executing the at least one program instruction.
8. A computer storage medium having stored therein at least one program instruction which is loaded and executed by a processor to implement the method of any one of claims 1 to 6.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112816965A (en) * | 2020-12-04 | 2021-05-18 | 中国船舶重工集团公司第七一五研究所 | Sonar array directivity automatic measurement system and measurement method |
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