Summary of the invention
The purpose of the present invention aims to solve at least one of described technological deficiency.
For this purpose, it is an object of the invention to propose a kind of adjustable multibeam sonar of numbers of beams.
To achieve the goals above, the embodiment of the present invention provides a kind of adjustable multibeam sonar of numbers of beams, comprising: sonarTransmitting transducer, sonar receive energy converter, track, memory and processor, wherein the sonar transmitting transducer is fixed on soundIn system, sound wave is penetrated in the fixed position of the sonar transmitting transducer；The sonar receives energy converter and is installed on the railTrack-movable on road, the sonar receive the echo letter that energy converter receives the sonar transmitting transducer in different locationNumber；The processor receives energy converter with the sonar and the memory is connect, and the sonar receives energy converter according toThe control command of processor slides into the different location on track, and receives echo-signal, and the echo-signal received is realWhen storage memory in, when the sonar receive energy converter whole position echo signal reception finish, the processor startsWave beam forming and follow-up signal handle work.
Further, the sonar receives multiple positions that energy converter is advanced on the track, is determined by target resolution.
Further, the target resolution is higher, and it is more that the sonar receives the location point of energy converter on the track.
The present invention also proposes a kind of adjustable multibeam sonar design method of numbers of beams, include the following steps:
Step S1 obtains target resolution；
Step S2 is laid with track, according to target resolution be arranged the sonar receive energy converter advance in orbit it is moreA location point；
Step S3, the sonar transmitting transducer are fixed in Sonar system, the fixed position of the sonar transmitting transducerEmit sound wave；
Step S4, the sonar receive energy converter and are installed on track-movable on the track, and the sonar reception is changedEnergy device receives the acoustic signals of the sonar transmitting transducer in different location, and issues echo-signal；
Step S5, the sonar receive energy converter and slide into the different positions on track according to the control command of the processorIt sets, and receives echo-signal, and by the echo-signal real-time storage memory received, when to receive energy converter complete for the sonarThe echo signal reception of portion position finishes, and the processor starts Wave beam forming and follow-up signal processing work.
Further, the target resolution is higher, and it is more that the sonar receives the location point of energy converter on the track.
Numbers of beams according to an embodiment of the present invention is adjustable multibeam sonar and design method, sonar transmitting transducer are fixed onAmong track, sonar receives energy converter controlled slip in orbit, slides into different location according to system control command and is received backWave signal, echo-signal real-time storage wait sonars to receive energy converter whole position in the memory of Signal processing of sonar deviceEcho signal reception finishes, and processor starts Wave beam forming and follow-up signal processing work.Multibeam sonar of the invention receivesThe structural shape of energy converter acoustic array track-movable；Sound wave is penetrated in the fixed position of sonar transmitting transducer, receives transducingDevice receives the working sequence of echo in different location.The present invention passes through mobile energy converter, receives target echo, phase in different locationWhen the reception battle array for increasing several times in an array element number is working；Since sonar transmitting transducer position relative orbit is fixed,Receiving the received multiecho of energy converter has fixed phase relation, therefore narrower wave beam and more can be obtained with Combined TreatmentWave beam number.Due to reducing the complexity of energy converter using reception transducing mobile working, while reducing hardware circuitScale.
The additional aspect of the present invention and advantage will be set forth in part in the description, and will partially become from the following descriptionObviously, or practice through the invention is recognized.
Detailed description of the invention
Above-mentioned and/or additional aspect of the invention and advantage will become from the description of the embodiment in conjunction with the following figuresObviously and it is readily appreciated that, in which:
Fig. 1 is the structure chart according to the sonar transducer of the embodiment of the present invention；
Fig. 2 is the schematic diagram according to the adjustable multibeam sonar of numbers of beams of the embodiment of the present invention；
Fig. 3 is to receive the schematic diagram of echo in position 1 according to the energy converter that receives of the embodiment of the present invention；
Fig. 4 is to receive the schematic diagram of echo in position 2 according to the energy converter that receives of the embodiment of the present invention；
Fig. 5 is to receive the schematic diagram of echo in position 3 according to the energy converter that receives of the embodiment of the present invention；
Fig. 6 is to receive the schematic diagram of echo in position 4 according to the energy converter that receives of the embodiment of the present invention；
Fig. 7 is to receive the schematic diagram of echo in position 5 according to the energy converter that receives of the embodiment of the present invention；
Fig. 8 is the schematic diagram that echo is received according to the reception battle array for being equivalent to 5 times of array element numbers of the embodiment of the present invention；
Fig. 9 is the flow chart according to the adjustable multibeam sonar design method of numbers of beams of the embodiment of the present invention.
Specific embodiment
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to endSame or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attachedThe embodiment of figure description is exemplary, it is intended to is used to explain the present invention, and is not considered as limiting the invention.
As shown in Fig. 2, the adjustable multibeam sonar of the numbers of beams of the embodiment of the present invention, comprising: sonar transmitting transducer, sonarReceive energy converter, track, memory and processor.
Specifically, sonar transmitting transducer is fixed in Sonar system, the fixed position of sonar transmitting transducer emits sound wave.Since transmitting transducer position is in stationary state on Sonar system, the phase of multiecho acoustical signal thereby may be ensured thatInformation rule is consistent.
Sonar receives energy converter and is installed on track-movable on track, and sonar receives energy converter in different location reception soundThe echo-signal of transmitting transducer.
In one embodiment of the invention, sonar receives multiple positions that energy converter is advanced in orbit, by target pointResolution determines.That is, target resolution is higher, sonar reception energy converter location point in orbit is more, so that is received returnsWave signal is more, is more conducive to follow-up signal and handles, obtains higher resolution ratio.
Processor receives energy converter with sonar and memory is connect, and sonar receives energy converter according to the control command of processorSlide into the different location on track, and receives echo-signal, and by the echo-signal real-time storage memory received, whenThe echo signal reception that sonar receives energy converter whole position finishes, and processor starts Wave beam forming and follow-up signal processing workMake.
Sonar receives energy converter and is installed on track, and when using the work of fixed beam mode, sonar receives energy converterIt being fixed on track, system is equivalent to traditional multibeam sonar, when needing careful observation object to be measured, sonar transmitting transducerOne infrasound of every transmitting, sonar receive energy converter and all receive an infrasound in different location, and transmitting and received timing guarantee oneIt causes, after the echo of whole positions all receives, Combined Treatment is carried out to whole echoes, obtains careful multi-beam result.
Fig. 3 to Fig. 7 demonstrates the reception battle array of mobile 5 positions, and Fig. 8 demonstration echo reception result is equivalent to one big battle arrayAs a result, big battle array array element number connects 5 times of array element number to be small, is set due to shooting position and fixed relative to target, 5 reception signalsBetween phase fix, therefore Combined Treatment can be carried out.It should be noted that 5 positions are only for exemplary purposes, rather than to beThe limitation present invention.Number of positions in the present invention can also be other, be arranged according to target resolution.
As shown in figure 9, the embodiment of the present invention also provides a kind of adjustable multibeam sonar design method of numbers of beams, including as followsStep:
Step S1 obtains target resolution.
Step S2 is laid with track, and sonar is arranged according to target resolution and receives multiple positions that energy converter is advanced in orbitIt sets a little.Wherein, target resolution is higher, and it is more that sonar receives energy converter location point in orbit.
Step S3, sonar transmitting transducer are fixed in Sonar system, and sound is penetrated in the fixed position of sonar transmitting transducerWave.
Since transmitting transducer position is in stationary state on Sonar system, it thereby may be ensured that multiecho sound is believedNumber phase information rule it is consistent.
Step S4, sonar receive energy converter and are installed on track-movable on track, and sonar receives energy converter in different positionsThe acoustic signals for receiving sonar transmitting transducer are set, and issue echo-signal.
In one embodiment of the invention, sonar receives multiple positions that energy converter is advanced in orbit, by target pointResolution determines.That is, target resolution is higher, sonar reception energy converter location point in orbit is more, so that is received returnsWave signal is more, is more conducive to follow-up signal and handles, obtains higher resolution ratio.
Step S5, sonar receives energy converter and slides into the different location on track according to the control command of processor, and connectsEcho-signal is received, and by the echo-signal real-time storage memory received, when sonar receives returning for energy converter whole positionWave signal receives, and processor starts Wave beam forming and follow-up signal processing work.
When needing to carry out careful observation to target, sonar transmitting transducer shines the multiple wave beam of objective emission in same positionIt penetrates, receives battle array and receive target echo signal in different location respectively, sonar processor unites to the echo-signal of different locationOne processing, there is fixed phase relation under Lentic environment, between multiecho, can by the Combined Treatment to multiechoObtain numbers of beams several times of number of beams more than fixed reception battle array sonar.
Numbers of beams according to an embodiment of the present invention is adjustable multibeam sonar and design method, sonar transmitting transducer are fixed onAmong track, sonar receives energy converter controlled slip in orbit, slides into different location according to system control command and is received backWave signal, echo-signal real-time storage wait sonars to receive energy converter whole position in the memory of Signal processing of sonar deviceEcho signal reception finishes, and processor starts Wave beam forming and follow-up signal processing work.Multibeam sonar of the invention receivesThe structural shape of energy converter acoustic array track-movable；Sound wave is penetrated in the fixed position of sonar transmitting transducer, receives transducingDevice receives the working sequence of echo in different location.The present invention passes through mobile energy converter, receives target echo, phase in different locationWhen the reception battle array for increasing several times in an array element number is working；Since sonar transmitting transducer position relative orbit is fixed,Receiving the received multiecho of energy converter has fixed phase relation, therefore narrower wave beam and more can be obtained with Combined TreatmentWave beam number.Due to reducing the complexity of energy converter using reception transducing mobile working, while reducing hardware circuitScale.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically showThe description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or examplePoint is included at least one embodiment or example of the invention.In the present specification, schematic expression of the above terms are notCentainly refer to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be anyOne or more embodiment or examples in can be combined in any suitable manner.
Although the embodiments of the present invention has been shown and described above, it is to be understood that above-described embodiment is exampleProperty, it is not considered as limiting the invention, those skilled in the art are not departing from the principle of the present invention and objectiveIn the case where can make changes, modifications, alterations, and variations to the above described embodiments within the scope of the invention.The scope of the present inventionBy appended claims and its equivalent limit.