Space laser communication motion double-terminal long distance transmission analog device

Abstract

A stimulant device of space laser communication movement double terminals long-distance transmission. The component is double-channel symmetrical system: the beam lambda 1 of the first detected laser communication terminal emitting wave length pass through orderly the first Fourier lens, the first wave minute lens, the first optical imaging amplifier, the scanning double-face reflectoscope, the first reflectoscope, the second optical imaging amplifier, the second wave minute lens, the second Fourier lens to arrive the second tested laser communication terminal; the beam lambda 2 of the second detected laser communication terminal emitting wave length pass through orderly the second Fourier lens, the second wave minute lens, the third optical imaging amplifier, the scanning double-face reflectoscope, the third reflectoscope, the fourth optical imaging amplifier, the fourth reflectoscope, the first wave minute lens and the first Fourier lens to arrive the first tested laser communication terminal; this device realizes the mutually far-field movement of two tested communication terminals. It can be applied to the capture and scanning tracking of planet laser communication terminal and to the test and validation of communication performance.

Description

Technical field: [0001] The invention relates to satellite laser communication, in particular to a space laser communication movement dual-terminal long-distance transmission simulation device. The device can realize the mutual far-field motion of two tested communication terminals in the laboratory, and can be applied to the detection and verification of satellite laser communication terminals' acquisition, tracking and aiming, and communication performance. Background technique [0002] Satellite laser communication includes free space laser communication between satellites, between satellites and other flying objects, between satellites and the ground, and so on. In order to maintain a stable communication link between two relatively moving laser communication terminals, a laser communication terminal must include two subsystems: laser communication and optical capture and aiming. The working distance of satellite laser communication is hundreds to tens of thousands of k...

AI Technical Summary

Problems solved by technology

However, up to now, there is no method for directly connecting two tested laser communication terminals to implement tracking and communication performance detection and verification.

The main reason is that there is no optical method that can simulate the transformation of the beam from the near-field distribution to the far-field distribution at the laboratory space scale, and it is bidirectional, and can simulate the far field of the satellite at the same time

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