Method for broadband radio-frequency signal correlation detection based on time-spectrum convolution principle

Abstract

The invention relates to a method for broadband radio-frequency signal correlation detection based on the time-spectrum convolution principle. The method is used for filtering and matching broadband radio signals and comprises the following steps that step 1, a laser device is used for generating a multi-wavelength laser light source; step 2, the spectrum forming technology is used by generated lasers through an optical filter so that an amplitude-frequency response envelope conjugated with a detected broadband radio-frequency signal time domain waveform can be generated; step 3, the received detected broadband radio-frequency signals are loaded on the lasers after spectrum forming through an electro-optic strength modulator; step 4, the modulated optical signals are introduced to chromatic dispersion delay through a linear chromatic dispersion component; step 5, the optical signals are connected to a photoelectric detector for photovoltaic conversion and an output signal is a detected electric pulse signal after a correlation operation. The method for broadband radio-frequency signal correlation detection based on the time-spectrum convolution principle can effectively avoid offline processing of data and achieve immediate measurement of the broadband radio-frequency signals.

Description

technical field [0001] The invention belongs to the field of optoelectronic technology and is used for real-time detection of ultra-wideband radio frequency signals of specific waveforms. Based on the principle of time-spectrum convolution, correlation calculation detection is realized through physical structures. The method has the characteristics of high time precision and low bit error rate. In particular, it refers to a wideband radio frequency signal correlation detection method based on the time-spectrum convolution principle. Background technique [0002] Short-distance wireless devices and communication services are gradually becoming the mainstream of wireless communication development. In the face of increasingly complex wireless communication environments, broadband radio frequency signals with low power consumption and satisfying wireless devices and services have become a research hotspot. How to The generation of this emerging broadband radio frequency signal h...

AI Technical Summary

Problems solved by technology

However, due to the limited instantaneous bandwidth of electronic devices, direct and real-time monitoring of low-power broadband radio frequency signals has not been realized so far. Under the aid of computer computing, this has brought great obstacles to the practical application of optical broadband radio frequency systems

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