Synthetic aperture experimental system, experimental method and high-resolution detection equipment
A technology of synthetic aperture and experimental system, applied in the field of experiments, can solve problems such as difficulty, high cost of experimental site, limited means of physical experiments, etc., to achieve the effect of simplifying the design
Pending Publication Date: 2021-01-26
NAVAL UNIV OF ENG PLA
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Problems solved by technology
Its theoretical system is abstract, its technical elements are complex, and it is highly professional and academic. For a long time, most of the supporting experiments of this part of the teaching content have adopted the method of virtual simulation, and the means of physical experiments are limited, which seriously affects the improvement of teaching effect.
[0003] If the existing synthetic aperture sonar is moved to the laboratory, not only will a large pool be required, but the cost of the experimental site will be expensive, and the synthetic aperture sonar equipment will cost several million yuan and tens of millions of yuan.
Therefore, the existing synthetic aperture imaging equipment is moved to the laboratory for experiments, which is difficult and expensive
Method used
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Embodiment 1
[0093] The experimental system of synthetic aperture principle consists of four parts: display control and processing unit, experimental box, transducer unit and detection track. The system structure diagram is as follows figure 1 shown.
[0094] (1) Display control and processing unit
[0095] The display control and processing unit is the core of the experimental system, which completes parameter setting, command control, data acquisition and signal processing, and finally completes the display of experimental waveforms and data to realize man-machine dialogue. The display control and processing unit interface is divided into left and right parts, the left part is the original echo display window, and the right part is the synthetic aperture imaging result display window. The abscissa direction of the two windows is the distance direction, and the ordinate direction is the azimuth direction.
[0096] When the "Start Play" button is clicked, the experimental system starts ...
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The invention belongs to the technical field of experiment simulation, and discloses a synthetic aperture experiment system, an experiment method and high-resolution detection equipment. A display control and processing system of the synthetic aperture experiment system performs parameter setting, instruction control, data acquisition, signal processing and experiment waveform and data display; the experiment box body performs parameter setting, instruction control, data acquisition and autonomous experiment; the transducer unit performs electro-acoustic conversion, converts an electric signalinto an acoustic signal during transmitting, and converts the acoustic signal into an electric signal during receiving; the detection track pulls the transducer unit to perform uniform linear motionto simulate the motion state of the synthetic aperture principle. According to the invention, three module-level verification experiments of system clock design, transmit-receive conversion and time gain control and five autonomous innovative experiments of pulse ranging, DDS, quadrature demodulation, pulse compression and synthetic aperture imaging can be carried out. The blank of a domestic college physical synthetic aperture experiment system is filled.
Description
technical field [0001] The invention belongs to the field of experiment technology, and in particular relates to a synthetic aperture experiment system, an experiment method and high-resolution detection equipment. Background technique [0002] At present, synthetic aperture imaging is a new type of high-resolution detection technology, which is widely used in economic, social and military information fields. In the teaching of electronic information professional courses in colleges and universities, the synthetic aperture principle has become the core basic teaching content of the detection principle courses. Its theoretical system is abstract, technical elements are complicated, and it is highly professional and academic. For a long time, most of the supporting experiments of this part of the teaching content have adopted the method of virtual simulation, and the means of physical experiments are limited, which seriously affects the improvement of teaching effect. [0003...
Claims
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Login to View More IPC IPC(8): G09B23/14
CPCG09B23/14
Inventor 张森吴浩然田振陈亚男唐劲松钟何平
Owner NAVAL UNIV OF ENG PLA