Phased array radar receiving device based on photon parameter sampling
A phased array radar and receiving device technology, applied in radio wave measurement systems, instruments, etc., can solve problems such as limited applications, achieve the effects of reducing performance deterioration, optimizing system performance, and reducing the number of electro-optical/photoelectric conversions
Active Publication Date: 2018-12-25
SHANGHAI JIAO TONG UNIV
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Problems solved by technology
Traditional electronically controlled phased array radars are limited by the "aperture effect" of phased array antennas, which limits their applications in the fields of radar operating bandwidth, high-resolution measurement, radar imaging, and spread spectrum signals.
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[0020] A specific implementation example of the present invention is given below in conjunction with the accompanying drawings. This embodiment is implemented on the premise of the technical solution of the present invention, and detailed implementation methods and processes are given, but the protection scope of the present invention is not limited to the following embodiments.
[0021] figure 1 It is a schematic structural diagram of a phased array radar receiving device based on photon parameter sampling in the present invention. Its composition includes: a continuous light source 1, a first multi-channel coupling module 2, a phased array receiving module 3, a modulator array 4, a multi-channel optical delay array 5, a second multi-channel coupling module 6, an optical sampling pulse source 7, Photon parameter sampling gate 8, optical filter 9, photoelectric converter 10 and electrical acquisition module 11:
[0022] The connection relationship of the above components is ...
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A phased array radar receiving device based on photon parameter sampling comprises a continuous light source, a first multi-path coupling module, a phased array receiving module, a modulator array, amulti-path optical delay array, a second multi-path coupling module, a light sampling pulse source, a photon parameter sampling gate, an optical filter, a photoelectric converter and an electric acquisition module. The optical true time delay technology and the photon parameter sampling technology are combined, so that the electro-optical / photoelectric conversion frequency in a microwave photon radar is reduced, and the system loss is reduced; and meanwhile, the large-bandwidth and high-speed acquisition of signals is achieved, so that system complexity increasing and performance worsening caused by multiple times of electric frequency mixing and down-conversion of the receiving end of a traditional radar are reduced.
Description
technical field [0001] The invention relates to microwave photon signals, in particular to a phased array radar receiving device based on photon parameter sampling. Background technique [0002] Phased array antenna systems are widely used in fields such as radar, communications, and electronic countermeasure systems, among which high-quality broadband tunable microwave signal sources, broadband radar baseband signal sources and phase-delayed beamforming networks are the core components of the system. Traditional electronically controlled phased array radars are limited by the "aperture effect" of phased array antennas, which limits their applications in the fields of radar operating bandwidth, high-resolution measurement, radar imaging, and spread-spectrum signals. [0003] With the development of microwave photonics technology and its extensive research in the field of radar, the limitation of aperture transit time in traditional phased array antennas can be effectively ov...
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IPC IPC(8): G01S7/292
CPCG01S7/292
Inventor 邹卫文于磊陈建平
Owner SHANGHAI JIAO TONG UNIV