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Mass data correlation peak position fast obtaining method

A technology with peak correlation and a large amount of data. It is applied in the fields of electrical digital data processing, special data processing applications, instruments, etc. It can solve the problems of excessive calculation load and long calculation time, so as to improve calculation efficiency, reduce calculation time, and improve The effect of work efficiency

Active Publication Date: 2013-12-04
BEIJING INST OF RADIO METROLOGY & MEASUREMENT
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Problems solved by technology

[0005] Aiming at the deficiencies in the prior art above, the present invention provides a method for rapidly obtaining the correlation peak position of a large amount of data, so as to solve the problems of excessive calculation amount and long operation time when obtaining the correlation peak position of a large amount of data in common methods, and reduce data The adverse effect of the processor being overloaded for a long time

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Embodiment Construction

[0020] The following describes in detail a method for rapidly obtaining a large amount of data-related peak positions, and the specific steps of the method are as follows:

[0021] Step 1: Resampling of pending data

[0022] The two groups of N data samples obtained by A / D sampling are extracted at equal intervals of K times, and then two groups of new data samples are obtained, the length of which is N / K. The value range of K in this embodiment is 2-100.

[0023] Step 2: Correlation operations for resampled data samples

[0024] The new data samples obtained by re-sampling are correlated with formula 1, and the whole process only needs 2N / K times of multiplication and addition to be realized. Similarly, the number of multiplications and additions required for each multiplication and addition is N / K and N / K-1. The 2N / K correlation results are processed to obtain the position n1 of the correlation peak.

[0025] The third step: the interception of the original data

[0026...

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Abstract

The invention relates to a mass data correlation peak position fast obtaining method. The mass data correlation peak position fast obtaining method comprises a step 1 of re-sampling of data to be processed, a step 2 of correlation operation of samples of the re-sampled data, a step 3 of raw data interception, a step 4 of correlation operation of samples of the intercepted data, and a step 5 of calculation for obtaining correlation peak positions of raw data. The mass data correlation peak position fast obtaining method can solve the problems that in a common method, when mass data correlation peak positions are to be obtained, the number of operations is too large and the operation time is too long, thereby mitigating the adverse effect that a data processor needs to operate in an overloaded mode for a long time.

Description

technical field [0001] The invention relates to a method for obtaining the correlation peak position, in particular to a method for quickly obtaining the correlation peak position of a large amount of data. Background technique [0002] With the development of digital signal processing technology and the continuous improvement of data acquisition rate, the pressure of data volume and operation speed faced by the post-processor is increasing day by day. As one of the most commonly used methods in signal processing, correlation operation mainly involves multiplication and addition operations in essence, as shown in Equation 1. [0003] R xy ( m ) = 1 N Σ n = 0 N x ( n ) y ( ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F19/00
Inventor 贾冒华谭帆童琼彭薛葵
Owner BEIJING INST OF RADIO METROLOGY & MEASUREMENT
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