Ultrasonic phased array method based on information fusion
What is Al technical title?
Al technical title is built by PatSnap Al team. It summarizes the technical point description of the patent document.
An ultrasonic phased array and array element technology, which is used in special data processing applications, instruments, electrical digital data processing, etc.
Active Publication Date: 2014-06-18
CIVIL AVIATION UNIV OF CHINA
View PDF5 Cites 7 Cited by
Summary
Abstract
Description
Claims
Application Information
AI Technical Summary
This helps you quickly interpret patents by identifying the three key elements:
Problems solved by technology
Method used
Benefits of technology
Problems solved by technology
At present, there is no relevant literature and practical application system f...
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more
Image
Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
Click on the blue label to locate the original text in one second.
Reading with bidirectional positioning of images and text.
Smart Image
Examples
Experimental program
Comparison scheme
Effect test
Embodiment 1
[0046] Figure 1 to Figure 12 Shown: The object of embodiment 1 is a stainless steel block. Waveform diagrams of each array element 1#—8# of the ultrasonic phased array emitted separately are as follows: Figure 4 -11, it can be seen that the eight graphics are not exactly the same, that is, the signal characteristics collected by each array element are different. In order to comprehensively utilize the useful information characteristics provided by each signal and eliminate the error information characteristics, an information-based A fused ultrasonic phased array approach. The concrete algorithm of embodiment 1 goes out figure 1 —3 Flowchart.
[0047] The steps of embodiment 1 are as follows:
[0048] (1) Import the text data of 1#-8# array elements into MATALB to form 8 arrays A1, A2, A3, A4, A5, A6, A7, A8 with 11088 dimensions and 1 column.
[0049] (2) Establishment of quantile map method
[0050] a, Transpose each array and form an 8-dimensional matrix X w...
Embodiment 2
[0058] As shown in Table 1: The following are the characteristics of the data collected from the same point by the eight array elements of the ultrasonic phased array.
[0059] Table 1 The characteristics of the data collected from the same point by the eight elements of the ultrasonic phased array
[0060]
[0061] Embodiment 2 steps are as follows:
[0062] (1) Establishment of quantile map method
[0063] a. First, the signal data values collected by the eight ultrasonic phased array elements are arranged in ascending order: , .
[0064] b, Find the median of these eight values , , , .
[0065] c, take , is the empirical value, the lower limit ,Upper limit . Thus, the interval of valid data can be obtained as .
[0066] d, then get in the interval The consistent array in is: .
[0067] (2) Establishment of Bayesian estimation
[0068] Confidence distance matrix before quantile map method and relationship matrix As follo...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more
PUM
Login to view more
Abstract
The invention discloses an ultrasonic phased array method based on information fusion based on information fusion and belongs to an ultrasonic signal processing technology. The algorithm comprises a bitmap segmenting method and bayes estimation. The bitmap segmenting method comprises the following steps: extracting out medians, upper quartiles and lower quartiles of signals independently collected by each array element of an ultrasonic phased array probe in sequence, obtaining quartile dispersion, solving out elimination points and obtaining effective data fusion sets. Bayes estimation is established by virtue of the following steps: obtaining a characteristic function of each piece of effective data, solving out a decision function, obtaining a risk function, extracting the bayes risk of the decision function and obtaining most effective estimated values of parameters. The method disclosed by the invention can be used for improving the utilization rate of information collected by ultrasonic phased array elements, and obtaining more accurate and reliable description on a real environment.
Description
technical field [0001] The invention belongs to the field of ultrasonic signal processing, in particular to an ultrasonic phased array method based on information fusion. Background technique [0002] Ultrasonic phased array technology was proposed in the 1980s, and it was mainly used in medical ultrasound imaging diagnosis in the early stage. In recent years, ultrasonic phased array technology has developed rapidly at home and abroad, and research in medical diagnosis and industrial testing is very popular. In addition, progress has been made in the system design, system simulation and practical application of the phased array, and the phased array technology has begun to go digital. As the ultrasonic phased array technology has been paid more and more attention by people, the following difficulties have also emerged: the echo information obtained by each array element of the ultrasonic phased array has different signal characteristics, and a single information cannot...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more
Application Information
Patent Timeline
Application Date:The date an application was filed.
Publication Date:The date a patent or application was officially published.
First Publication Date:The earliest publication date of a patent with the same application number.
Issue Date:Publication date of the patent grant document.
PCT Entry Date:The Entry date of PCT National Phase.
Estimated Expiry Date:The statutory expiry date of a patent right according to the Patent Law, and it is the longest term of protection that the patent right can achieve without the termination of the patent right due to other reasons(Term extension factor has been taken into account ).
Invalid Date:Actual expiry date is based on effective date or publication date of legal transaction data of invalid patent.
Login to view more 
Login to view more