Real-time median frequency point extraction method for an ultra-wideband signal
A technology of ultra-wideband signal and extraction method, which is applied in the field of real-time median frequency point extraction of ultra-wideband signal, and can solve problems such as inability to meet real-time requirements, poor real-time performance, and time-consuming calculations
Active Publication Date: 2019-04-05
INST OF AUTOMATION CHINESE ACAD OF SCI
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For the extraction of the median frequency point on the spectral line, the traditional sorting methods are bubbling method, selection method, counting method, etc. Most of these algorithms use cyclic comparison, which is time-consuming and has poor real-time performance, which cannot meet the increasingly high real-time performance in engineering. Require
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[0018] Preferred embodiments of the present invention are described below with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are only used to explain the technical principles of the present invention, and are not intended to limit the protection scope of the present invention.
[0019] Specifically, such as figure 1 As shown, the technical scheme adopted by the present invention is as follows: take the AD acquisition chip whose acquisition frequency is as high as 3.2GHz on the market as an example to carry out the following description, and adopt the present invention to detect the signal of 10MHz-3.2GHz bandwidth in real time .
[0020] One, the analog signal is carried out analog-to-digital conversion, the present invention can utilize two AD chips of sampling rate 3.2GHz to carry out parallel acquisition to gather the input signal of frequency lower than 3.2GHz, the sampling rate of two AD acquisition chips is all...
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The invention belongs to the technical field of radio management and detection, and particularly provides a real-time median frequency point extraction method of an ultra wide band signal, which comprises the following steps of: S1, generating frequency spectrum data; S2, smoothing the generated frequency spectrum data; S3, integrating the size of the frequency spectrum data with the position information; S4, carrying out parallel sorting on the data in the FPGA; And S5, extracting the median frequency point. By means of the real-time median frequency point extraction method, extraction of themedian frequency points under real-time signal monitoring based on ultra-high bandwidth can be achieved, and due to the fact that parallel sorting and comparison are conducted on the data, the spaceof an FPGA is fully utilized, the operation time is greatly shortened, and the extraction speed of the median frequency points is increased.
Description
technical field [0001] The invention belongs to the technical field of radio management and detection, and specifically provides a method for extracting a real-time median frequency point of an ultra-wideband signal. Background technique [0002] The traditional frequency monitoring method can only monitor the frequency spectrum through frequency scanning, and use the scanning speed to adjust the ability of the system to detect instantaneous signals. This monitoring method has been difficult to meet the needs of various current application environments. First of all, with the continuous development of ultra-wideband radio frequency modulation technology, the signals that need to be monitored are more and more diverse, and the frequency range occupied by these signals is also wider. The traditional frequency monitor can no longer meet the monitoring of high-speed changing signals. Therefore, The requirements for the analysis capability of real-time spectrum monitoring of ultr...
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Login to View More IPC IPC(8): G06F7/24G06F7/02
CPCG06F7/02G06F7/24
Inventor 冯卉蒿杰舒琳范秋香宋亚芳赵良田吕志丰
Owner INST OF AUTOMATION CHINESE ACAD OF SCI