Broadband microwave photon phase coded signal generation device and method

A phase-encoded signal, microwave photon technology, applied in photonic quantum communication, electromagnetic wave transmission system, electrical components, etc., can solve the problem of multi-transmission signal amplitude weighting coefficient is not considered, affecting radar detection accuracy and accuracy, and deteriorating transmitted signal signal noise ratio and other issues, to achieve the effect of strong practical value and significance, high stability, and compact system structure

CN111565075AInactive Publication Date: 2020-08-21NORTHWESTERN POLYTECHNICAL UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2020-08-21
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention provides a broadband microwave photon phase coded signal generation device and method. An output port of a laser is connected with an input port of a carrier modulation module, an outputport of the carrier modulation module is connected with an input port of a phase encoding modulation module, an output port of the phase encoding modulation module is connected with an optical inputport of a photoelectric detector after passing through the optical fiber, and the photoelectric detector outputs a required phase encoding signal. According to the invention, an integrated polarization multiplexing modulator is used to generate an optical carrier signal, and then the polarization modulator is used to carry out phase coding modulation on the generated carrier signal so as to generate a phase coding signal without baseband interference. The amplitude of the signal is tuned by controlling the DC bias voltage of the polarization multiplexing modulator, so the system provided by the invention is expanded to a phased array radar system and a frequency-controlled array radar system, has a wider application scene, and is of great significance to the fusion and development of next-generation military and civil radar systems.
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Description

technical field

[0001] The invention relates to the field of optoelectronics, in particular to a signal generating device and a realization method. Background technique

[0002] As detection targets and electromagnetic interference become more and more complex, future radar systems are constantly developing in the direction of large bandwidth, multi-band, multi-function, anti-jamming, and portability. Especially under the requirements of modern warfare that integrates air, sea and land, the radar system is facing a severe test. The targets that need to be detected and interfered are becoming more and more complex. locking. How to break through the limitations of existing electronic bottlenecks and realize a radar system with large bandwidth, reconfigurability, and flexible waveform is the frontier and hot spot of modern radar system research. Microwave photon radar utilizes the large bandwidth and anti-electromagnetic interference characteristics of photon technology, whic...

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Embodiment

[0058] The broadband microwave photonic phase encoding signal generation device and method for suppressing baseband interference are simulated and verified by VPI optical simulation software, and the device diagram of the embodiment is referred to figure 1 .