A Multiplex Signal Transmission System of Synthetic Aperture Radiometer Based on Microwave Photon
A radiation signal and synthetic aperture technology, which is applied in the field of microwave remote sensing, can solve the problems of heavy weight, increased antenna arm volume, and increased system weight, and achieve strong electromagnetic isolation, overcome limitations, and improve high-amplitude effects
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[0020] Specific embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings.
[0021] The invention provides a microwave photon-based synthetic aperture radiometer multi-channel signal transmission system, which is used to ensure the high amplitude and phase consistency of the synthetic aperture microwave radiometer multi-channel radio frequency signal transmission. like figure 1 A system of the present invention is shown comprising: a plurality of receive front ends, a plurality of optical transmitters, a plurality of optical fibers, and a plurality of optical receivers; wherein:
[0022] like figure 2 As shown, a single receiving front-end includes an antenna, an isolator and a low-noise amplifier module. The antenna adopts a microstrip antenna. The gain of the low-noise amplifier module is about 50dB, and the noise figure is <1.5dB.
[0023] The functions of the receiving front end are:
[0024] a. Receive...
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