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High-speed signal spectrum analyzing method based on stm32f4

A high-speed signal and spectrum analysis technology, applied in spectrum analysis, measuring devices, instruments, etc., can solve the problems of complex structure, inconvenience of high-speed signal spectrum analysis, high failure rate, etc., and achieve the effect of solving inconvenience

Inactive Publication Date: 2017-07-28
成都米风通信技术有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the paper titled "High-speed Signal Spectrum Analyzer Based on stm32f4" has a complex structure and a high failure rate, which brings inconvenience to high-speed signal spectrum analysis

Method used

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  • High-speed signal spectrum analyzing method based on stm32f4

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Embodiment Construction

[0039] The present invention will be further described below in conjunction with specific embodiment:

[0040] Collect the analog signal of the high-speed signal to be analyzed, and preprocess and filter the collected analog signal;

[0041] Perform analog-to-digital conversion on the pre-processed and filtered analog signal to obtain sampling data;

[0042] Perform FFT processing on the obtained sampling data to obtain high-speed signal spectrum information;

[0043] Perform a peak search on the obtained high-speed signal spectrum information to obtain the peak signal;

[0044] Carrying out quadrature digital down-conversion processing on the sampling data to generate quadrature signals;

[0045] Mixing the quadrature signal and the peak signal to obtain a broadband complex baseband high-speed signal;

[0046] Spectrum correction processing is performed on the broadband complex baseband high-speed signal, and the frequency, amplitude and initial phase information of the si...

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Abstract

The invention discloses a high-speed signal spectrum analyzing method based on stm32f4, the method comprises collecting a to-be-analyzed analog signal of a high-speed signal, and performing filtering preprocessing on the collected analog signal; and performing analog-digital conversion on the processed analog signal and the like. According to the invention, the high-speed signal spectrum analyzing is realized, and a problem that the high-speed signal spectrum analyzing is inconvenient is solved.

Description

technical field [0001] The invention belongs to the technical field of wireless communication. It specifically relates to a high-speed signal spectrum analysis method based on stm32f4. Background technique [0002] STM32F4 is ARM's latest embedded processor Cortex M4, which is often used in the digital control market with mixed control and signal processing functions. The controller improves the running speed, increases the signal processing function, and adds many new features such as floating point operation unit, adaptive real-time accelerator, 32-bit multiple AHB bus matrix, multi-channel DMA controller, and digital signal controller. It has high integration, low power consumption, built-in up to 1MB on-chip Flash, 192KB SRAM, and normal operating frequency of 168MHz, so it has been widely used. [0003] The paper titled "High-speed Signal Spectrum Analyzer Based on stm32f4" is based on STM32F407 and mainly uses FIFO as cache. The high-speed signal is first sampled by...

Claims

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Application Information

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IPC IPC(8): G01R23/167
CPCG01R23/167
Inventor 余仪琳张德鑫徐镜媛
Owner 成都米风通信技术有限公司