Advanced demonstration plans of high-speed laser communication "HICALI" mission onboard the engineering test satellite 9 [International Communications Satellite Systems Conference]

2019 ◽  
Author(s):  
Y. Munemasa ◽  
Y. Saito ◽  
A. Carrasco-Casado ◽  
D.R. Kolev ◽  
P.V. Trinh ◽  
...  
Keyword(s):  
High Speed ◽  
Laser Communication ◽  
Satellite Systems

INNOVATIVE METHOD OF SATELLITE COMMUNICATION

2019 ◽  
Author(s):  
Teodor Narytnik ◽  
Vladimir Saiko
Keyword(s):  
Communication Systems ◽  
High Speed ◽  
Satellite Communication ◽  
Radio Channel ◽  
Satellite Communications ◽  
Service Area ◽  
Satellite Systems ◽  
Orbit Satellite ◽  
Geometric Size ◽  
Distributed Satellite

The technical aspects of the main promising projects in the segments of medium and low-orbit satellite communication systems are considered, as well as the project of the domestic low-orbit information and telecommunications system using the terahertz range, which is based on the use of satellite platforms of the micro- and nanosatellite class and the distribution of functional blocks of complex satellite payloads more high-end on multiple functionally related satellites. The proposed system of low-orbit satellite communications represents the groupings of low-orbit spacecraft (LEO-system) with the architecture of a "distributed satellite", which include the groupings of the root (leading) satellites and satellite repeaters (slaves). Root satellites are interconnected in a ring network by high-speed links between the satellites. The geometric size of the “distributed satellite” is the area around the root satellite with a radius of about 1 km. The combination of beams, which are formed by the repeater satellites, make up the service area of the LEO system. The requirements for the integrated service area of the LEO system (geographical service area) determine the requirements for the number of distributed satellites in the system as a whole. In the proposed system to reduce mutual interference between the grouping of the root (leading) satellites and repeater satellites (slaves) and, accordingly, minimizing distortions of the information signal when implementing inter-satellite communication, this line (radio channel) was created in an unlicensed frequency (e.g., in the terahertz 140 GHz) range. In addition, it additionally allows you to minimize the size of the antennas of such a broadband channel and simplify the operation of these satellite systems.

Free-space high-speed laser communication link across the Chesapeake Bay

2002 ◽  
Author(s):  
Christopher I. Moore ◽  
Harris R. Burris, Jr. ◽  
Michele R. Suite ◽  
Mena F. Stell ◽  
Michael J. Vilcheck ◽  
...  
Keyword(s):  
Chesapeake Bay ◽  
Free Space ◽  
High Speed ◽  
Laser Communication ◽  
Communication Link

Design of High Speed Laser Modulation Circuit Based on ADN2841

2014 ◽  
Vol 602-605 ◽  
pp. 2881-2884
Author(s):  
Yan Feng Tang ◽  
Hong Zuo Li ◽  
Bo Yang
Keyword(s):  
Circuit Design ◽  
High Speed ◽  
Laser Communication ◽  
Typical Application ◽  
Laser Modulation ◽  
Working Principle ◽  
Directly Modulated Lasers

This paper introduces the working principle of ADN2841 and analyzes the main features and the typical application circuit of ADN2841. The laser communication transmission modulation circuit design for the 14 foot butterfly package directly modulated lasers is proposed, and according to the realization and debugging, we summarize the ADN2841 application experience and pay attention to the problem.

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