Non-cooperative target spatial position detection method based on microwave photon technology

Abstract

The invention discloses a non-cooperative target spatial position detection method based on a microwave photon technology, and the method comprises the steps: carrying out the frequency doubling operation of an intermediate frequency linear frequency modulation signal generated by an arbitrary waveform generator through a Mach-Zehnder modulator at a transmitting end, and generating a radar detection signal with a large instantaneous bandwidth; and at a receiving end, echo signals reflected by a non-cooperative target are captured at the same time by using two receiving antennas with the baseline length of d, and the echo signals are used as driving signals of the dual-drive Mach-Zehnder modulator. A section of auxiliary cable with a fixed length is introduced between the first receiving antenna and the sub PM of the upper arm of the dual-drive Mach-Zehnder modulator, so that the positive and negative directions of a target are judged. Finally, the simultaneous detection of the distance and direction of the non-cooperative target is achieved by using the relationship between the received echo signal and the reference signal, and the spatial positioning of the non-cooperative target is completed.

Description

technical field [0001] The invention proposes a method for detecting the spatial position of a non-cooperative target based on microwave photon technology, and the method belongs to the technical field where microwave photon and radar intersect. Background technique [0002] Radar is a main method to achieve long-distance and large-scale target detection, imaging, tracking and identification, and has the advantages of all-day and all-weather. With the development of technology in the military and civilian fields, there are further requirements for modern radar systems, such as high resolution, real-time and multi-function, and correspondingly, radar systems are required to have larger instantaneous bandwidth and faster data processing. speed and higher integration. However, limited by the bottleneck of electronics, traditional radar systems are not competent in wideband radar signal generation, processing, high-speed data acquisition and multi-functional integration. Micro...

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problem that the microwave photon-based radar detection function and direction measurement function in the existing method are usually implemented by independent parts, resulting in high complexity and high power consumption of the existing method, and the detection chain built based on the existing method The road has a larger volume and weight, which is not conducive to the application in military and civilian environments

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