CN106680799A - Ship-borne sonar target echo simulation method - Google Patents
Ship-borne sonar target echo simulation method Download PDFInfo
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- CN106680799A CN106680799A CN201510766331.0A CN201510766331A CN106680799A CN 106680799 A CN106680799 A CN 106680799A CN 201510766331 A CN201510766331 A CN 201510766331A CN 106680799 A CN106680799 A CN 106680799A
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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
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/52—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S15/00
- G01S7/52004—Means for monitoring or calibrating
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- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
Abstract
The invention discloses a ship-borne sonar target echo simulation method. The method is characterized by including following steps: step 1, setting target parameters including target distance, orientation, radial navigational speed, number of channels of a receiver array and position information of the channels, and storing the set target parameters in a high-speed operation processing unit; step 2, outputting emitting signals and triggering signals by a sonar emitting signal source, and respectively connecting the emitting signals and the triggering signals into a high-speed analog-digital conversion circuit and a triggering circuit; receiving the emitted triggering signals by the triggering circuit, triggering the high-speed analog-digital conversion circuit to collect the emitted signals to acquire signal data, and sending the signal data together with triggering signal data into the high-speed operation processing unit. By the method, laboratory testing of ship-borne sonar target echo simulation is realized in actual application, testing adaptability of a multi-sonar system is improved, testing level of ship-borne sonar equipment of China is improved, and technologic upgrading of scientific research, testing, debugging and inspecting of domestic sonar systems is promoted.
Description
Technical field
The present invention is a kind of analogy method of shipboard sonar target echo, belongs to shipboard sonar emulation testing field, the particularly analogy method of shipboard sonar target echo.
Background technology
Underwater acoustic system of the shipboard sonar as a complexity, when laboratory or ground are tested or are debugged, limited by place and environment, cannot using it is real under water or waterborne target is tested, reduce sonar debugging and functional performance tests the efficiency of checking, in order to carry out ground test or debugging, it is necessary to tested or debugged using sonar simulation signal generator simulation sonar echo.
At present existing technology is primarily present following shortcoming：
1. current prior art can only be generated and launching simulation target echo signal according to setting waveform, and can only simulate several specific waveforms, and there is some difference with actual signal for signal characteristic, it is impossible to realizes the simulation of any echo waveform；
2. current shipboard sonar is typically triggered using positive pulse or negative pulse, but at present prior art only possesses one of which triggering ability, it is impossible to meet test or the debugging demand of various shipboard sonars, testing cost is higher.
The content of the invention
The purpose of this invention is to design a kind of analogy method of shipboard sonar target echo, to realize that shipboard sonar system is generated in laboratory or ground environment simulation any type target echo and background signal, detection and test of the sonar system under conditions of without true Acoustic Object is realized.
A kind of analogy method of shipboard sonar target echo, it is characterised in that comprise the following steps：
Step one：Sets target parameter, including the port number and the positional information of passage of target range, orientation, the radial direction speed of a ship or plane and receiver battle array, and sets target parameter is stored in high-speed computation processing unit；
Step 2：Sonar transmission signal source transmission signal is exported and trigger output, and is respectively connected in high-speed A/D conversion circuit and triggers circuit；Triggers circuit receives the trigger of transmitting, triggers high-speed A/D conversion circuit and the signal launched is acquired, and obtains signal data, and high-speed computation processing unit is sent into together with trigger data；
Step 3：Parameter of the high-speed computation processing unit according to sets target, resolved, the frequency and time data of signal are adjusted according to calculation result, multigroup target echo signal data are formed, multigroup target echo signal data are converted into multigroup analog signal by high-speed A/D conversion circuit；
Step 4：Multigroup analog signal that high-speed A/D conversion circuit forms step 3 presses the multiple passages of its frequency and time tranfer to receiver；Complete the simulation of sonar passage echo-signal.
High-speed computation processing unit is further changed multigroup echo-signal, including the parameter of the amplitude, receiving channel feature and ambient noise of setting echo-signal.
Beneficial effect：The present invention realizes in actual applications laboratory's test of the simulation of shipboard sonar target echo, makes the adaptability of many sonar system tests, improves the testing level of China's shipboard sonar equipment.Domestic sonar system scientific research, test, debugging, the technology upgrading of inspection are promoted simultaneously.
Description of the drawings
The connection diagram that Fig. 1, shipboard sonar target echo simulator involved in the present invention are equipped with tested sonar；
The analogue means that Fig. 2, the embodiment of the present invention are used；
Fig. 3, shipboard sonar target echo simulated technological process principle schematic involved in the present invention.
Specific embodiment
A kind of analogy method of shipboard sonar target echo, it is characterised in that comprise the following steps：
Step one：Sets target parameter, including the port number and the positional information of passage of target range, orientation, the radial direction speed of a ship or plane and receiver battle array, and sets target parameter is stored in high-speed computation processing unit；
Step 2：Sonar transmission signal source transmission signal is exported and trigger output, and is respectively connected in high-speed A/D conversion circuit and triggers circuit；Triggers circuit receives the trigger of transmitting, triggers high-speed A/D conversion circuit and the signal launched is acquired, and obtains signal data, and high-speed computation processing unit is sent into together with trigger data；
Step 3：Parameter of the high-speed computation processing unit according to sets target, resolved, the frequency and time data of signal are adjusted according to calculation result, multigroup target echo signal data are formed, multigroup target echo signal data are converted into multigroup analog signal by high-speed A/D conversion circuit；
Step 4：Multigroup analog signal that high-speed A/D conversion circuit forms step 3 presses the multiple passages of its frequency and time tranfer to receiver；Complete the simulation of sonar passage echo-signal.
High-speed computation processing unit is further changed multigroup echo-signal, including the parameter of the amplitude, receiving channel feature and ambient noise of setting echo-signal.
The present invention is made up of high-speed computation processing unit, programmable touch Power Generation Road, high-speed A/D conversion circuit and multipath high-speed D/A converting circuit, is illustrated in fig. 1 shown below.
Spread speed of the known sound in water is V0(about 1500 meter per second), when sonar is detected, by transmiting signal source transmitted waveform signal and trigger is exported, and transmission signal reflects in target, and receiver receives reflection echo signal.The time of emitter transmission signal is t0, receiver receive signal time be t1, then target be apart from L with sonar：
L=V0×Δt/2
In formula：Δ t is the time difference that transmitter signal transmitting and receiver receive reflected signal,
Δ t=t1-t0
According to Doppler effect principle, the frequency of emitter transmission signal is f0, it is f that receiver receives the frequency of echo-signal1, then the radial velocity of target is V1For：
V1=(f1-f0)/f0×V0
According to above-mentioned principle, by the frequency by transmission signal is changed, the time of postpones signal, can one passage of simulated target distance and radial velocity, by triangular relationship, you can complete the simulated radar echo to sonar target.
In the present invention, the transmission signal output and trigger output of sonar transmission signal source is respectively connected in the high-speed A/D conversion circuit and triggers circuit of the present invention, triggers circuit receives emitter trigger, triggering high-speed A/D conversion circuit is acquired to transmission signal, signal data is obtained, high-speed computation processing unit is sent into together with trigger data.Parameter of the high-speed computation processing unit according to sets target, the frequency and time data of adjustment signal, form new target echo signal data, target echo signal data are converted into analog signal by high-speed A/D conversion circuit, it is transferred to receiver, you can complete the simulation to one passage echo-signal of sonar.According to the principle of triangle, exported using multiple signals, multiple passages of sonar receiver are simulated respectively, be capable of achieving the simulation in the orientation, distance and radial velocity of target.High-speed computation processing unit can also set the parameters such as amplitude, receiving channel feature, the ambient noise of echo-signal, and sonar echo signal is close to truly target simulation.
As shown in Fig. 3 shipboard sonar target echo simulated technological process principle schematics, this invention realizes transmission signal sampling true to sonar using high-speed ADC, obtains target fiducials signal, and according to system command signal operation is carried out, and forms moving target signal.Triggers circuit adopts programming device, can align, negative pulse and its amplitude are controlled, and meets the testing requirement of different sonars equipments.Sonar target signal, delay time signal and the ambient noise generated according to instruction entered after signal synthesis, were exported to tested sonar equipment by DA passages.
The key point of the present invention
The key point one of the present invention is to realize sampling sonar transmission signal using high-speed ADC, and carries out correlation computations, can truly simulate the echo of target reflection after sonar equipment transmission signal, can realize the input and simulation of random waveform.
The key point two of the present invention is to employ programming device as triggers circuit, is capable of achieving positive and negative pulse, the setting of trigger voltage amplitude, can adapt to the testing requirement of various sonar equipments.
The technological achievement has been completed the abundant checking of land united test, its invention possesses the adaptability of many sonar system tests, sonar echo simulation is less with true echo difference, the testing level of China's shipboard sonar equipment is improved, while promoting domestic sonar system scientific research, test, debugging, the technology upgrading of inspection.
Analog signal and the difference of actual signal and the difference problem of the different sonar systems of adaptation are solved, the test to any shipboard sonar and debugging checking is capable of achieving.
Claims (2)
1. a kind of analogy method of shipboard sonar target echo, it is characterised in that comprise the following steps：
Step one：Sets target parameter, including target range, orientation, the radial direction speed of a ship or plane and receiver battle array is logical
The positional information of road number and passage, and sets target parameter is stored in high-speed computation processing unit；
Step 2：Sonar transmission signal source transmission signal is exported and trigger output, and is respectively connected to height
In fast analog to digital conversion circuit and triggers circuit；Triggers circuit receives the trigger of transmitting, and triggering is at a high speed
Analog to digital conversion circuit is acquired to the signal launched, and signal data is obtained, together with trigger data
Send into high-speed computation processing unit；
Step 3：High-speed computation processing unit is resolved according to the parameter of sets target, according to resolving
As a result the frequency and time data of signal are adjusted, multigroup target echo signal data are formed, high speed analog-digital conversion turns
Change circuit and multigroup target echo signal data are converted into multigroup analog signal；
Step 4：Multigroup analog signal that high-speed A/D conversion circuit forms step 3 by its frequency and when
Between be transferred to multiple passages of receiver；Complete the simulation of sonar passage echo-signal.
2. the analogy method of a kind of shipboard sonar target echo according to claim 1, it is characterised in that
High-speed computation processing unit is further changed multigroup echo-signal, including setting echo-signal amplitude,
The parameter of receiving channel feature and ambient noise.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107300695A (en) * | 2017-07-12 | 2017-10-27 | 哈尔滨工程大学 | A kind of multi-beam sonar loading device |
| CN110501693A (en) * | 2019-07-31 | 2019-11-26 | 中国人民解放军战略支援部队信息工程大学 | A kind of multifunctional water acoustical signal source based on software sonar |
| CN111983591A (en) * | 2020-08-27 | 2020-11-24 | 华人运通(上海)自动驾驶科技有限公司 | Echo simulation system and method |
| CN114061730A (en) * | 2022-01-19 | 2022-02-18 | 中国船舶工业系统工程研究院 | Target scattering echo variable-step-length rapid self-adaptive estimation method |
| CN114265044A (en) * | 2021-11-30 | 2022-04-01 | 海鹰企业集团有限责任公司 | Calibration equipment and method based on sonar marine performance dynamic evaluation |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05142334A (en) * | 1991-11-25 | 1993-06-08 | Mitsubishi Precision Co Ltd | Device for simulating sonar echo |
| CN102590804A (en) * | 2012-02-27 | 2012-07-18 | 中国科学院声学研究所 | Overland testing system of Doppler sonar and testing method thereof |
| CN103207396A (en) * | 2013-04-11 | 2013-07-17 | 浙江工业大学 | Docking system for simulating Doppler log seabed echo signals on basis of field programmable gata array (FPGA) |
| CN103809169A (en) * | 2014-03-04 | 2014-05-21 | 中国人民解放军海军陆战学院 | Sonar test system and test method |
-
2015
- 2015-11-11 CN CN201510766331.0A patent/CN106680799A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05142334A (en) * | 1991-11-25 | 1993-06-08 | Mitsubishi Precision Co Ltd | Device for simulating sonar echo |
| CN102590804A (en) * | 2012-02-27 | 2012-07-18 | 中国科学院声学研究所 | Overland testing system of Doppler sonar and testing method thereof |
| CN103207396A (en) * | 2013-04-11 | 2013-07-17 | 浙江工业大学 | Docking system for simulating Doppler log seabed echo signals on basis of field programmable gata array (FPGA) |
| CN103809169A (en) * | 2014-03-04 | 2014-05-21 | 中国人民解放军海军陆战学院 | Sonar test system and test method |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107300695A (en) * | 2017-07-12 | 2017-10-27 | 哈尔滨工程大学 | A kind of multi-beam sonar loading device |
| CN107300695B (en) * | 2017-07-12 | 2020-04-07 | 哈尔滨工程大学 | Multi-beam sonar carrying device |
| CN110501693A (en) * | 2019-07-31 | 2019-11-26 | 中国人民解放军战略支援部队信息工程大学 | A kind of multifunctional water acoustical signal source based on software sonar |
| CN111983591A (en) * | 2020-08-27 | 2020-11-24 | 华人运通(上海)自动驾驶科技有限公司 | Echo simulation system and method |
| CN114265044A (en) * | 2021-11-30 | 2022-04-01 | 海鹰企业集团有限责任公司 | Calibration equipment and method based on sonar marine performance dynamic evaluation |
| CN114061730A (en) * | 2022-01-19 | 2022-02-18 | 中国船舶工业系统工程研究院 | Target scattering echo variable-step-length rapid self-adaptive estimation method |
| CN114061730B (en) * | 2022-01-19 | 2023-09-19 | 中国船舶工业系统工程研究院 | Target scattering echo variable step length rapid self-adaptive estimation method |
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