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A Spectrum Stitching Method Based on Smooth Fitting

A spectrum smoothing technology, applied in the field of communication, can solve problems such as glitches, large fluctuations in the overall spectrum, and affecting the performance of signal monitoring, etc., to achieve wide application and achieve the effect of spectrum smoothing

Active Publication Date: 2021-12-24
成都云溯新起点科技有限公司
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Problems solved by technology

Most of the existing public splicing methods use the direct splicing method. Due to the differences in factors such as the noise floor of each segment of the spectrum, the overall spectrum fluctuates greatly after splicing, which will introduce artificial spectrum glitches caused by splicing, which will affect the performance of subsequent signal monitoring.

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  • A Spectrum Stitching Method Based on Smooth Fitting
  • A Spectrum Stitching Method Based on Smooth Fitting
  • A Spectrum Stitching Method Based on Smooth Fitting

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Embodiment Construction

[0028] The technical solution of the present invention will be further described in detail below in conjunction with the accompanying drawings, but the protection scope of the present invention is not limited to the following description.

[0029] Such as figure 1 As shown, a smooth fitting-based spectrum mosaic method includes the following steps:

[0030] Set the spectrum range to be monitored , the spectrum is intercepted, and the FFT calculation is performed on the first segment of the intercepted spectrum to obtain the discrete Fourier transform , the first spectral range is ; Perform FFT calculation on the i-th spectrum to obtain the discrete Fourier transform , the spectrum range of the i segment is , , is a fixed value;

[0031] S2, overlap the i-th segment spectrum respectively and i-1 segment spectrum overlapping segment The data in the spectrum range is detected for burst signals, and when there is a burst signal, it enters S3, otherwise it enters ...

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Abstract

The invention discloses a method for splicing spectrum based on smooth fitting, which comprises the following steps: setting the spectrum range to be monitored, respectively performing burst signal detection on the data in the i-th segment and the i-1th segment spectrum range, when there is Then enter S3 when there is a burst signal, otherwise enter S4; extract the burst signal data segment detected in the i-th segment spectrum and perform discrete Fourier transform to obtain, extract the burst signal data segment detected in the i-1 segment spectrum and perform discrete Get the Fourier transform, enter S4; calculate the discrete Fourier transform in the i-th segment frequency spectrum, calculate the discrete Fourier transform in the i-1th segment frequency band, and enter S5; according to the spectrum splicing and fitting parameters obtained, complete according to the fitting parameters Wideband Spectrum Stitching. The present invention can realize the smoothing of front and rear frequency spectrums, and can be widely applied to the fields of radio monitoring and communication countermeasures.

Description

technical field [0001] The technical field of the present invention relates to a spectrum mosaic method based on smooth fitting. Background technique [0002] At present, the bandwidth of the electromagnetic spectrum to be monitored is much larger than that of existing receivers. Therefore, it is necessary to receive and collect multiple segments and then splicing the multiple segments of spectrum together to form the entire broadband spectrum. Most of the existing public splicing methods use the direct splicing method. Due to the differences in factors such as the noise floor of each spectrum, the overall spectrum fluctuates greatly after splicing, which will introduce artificial spectrum glitches caused by splicing, which will affect the performance of subsequent signal monitoring. Contents of the invention [0003] The purpose of the present invention is to overcome the deficiencies in the prior art, and a kind of spectrum splicing method based on smooth fitting is prov...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F17/14H04B17/30
CPCG06F17/142H04B17/30
Inventor 万坚陈永明涂世龙
Owner 成都云溯新起点科技有限公司
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