Receiving apertures (ground antennas and telescopes) also have higher receiver gain in preferred direction. When we want to detect a signal from space, we want the receiver to find the main lobe, which provides the maximum power. Feedback from ground for fine pointing (bidirectional link). Juno has five antennas!
detection using multiple coherent receivers [3, 4, 14]. As the fiber diameter increases to support more modes, the effective field-of-view of the fiber increases making the receiver more tolerant to coupling errors, and the coupling
Fiber-based free-space optical coherent receiver with vibration ...
We propose a novel fiber-based free-space optical (FSO) coherent receiver for inter-satellite communication. The receiver takes advantage of established fiber-optic components and utilizes the fine-pointing subsystem installed in FSO terminals to minimize the influence of satellite platform vibrations.
Homodyne coherent optical receiver for intersatellite …
For increasing the data rate and reducing the power consumption in satellite communication systems, free-space optical communication technology has been verified as an attractive alternative to traditional radiofrequency communication systems. In this study, a high-sensitivity homodyne coherent optical receiver was demonstrated.
Implementation of a 10 Gbps Coherent Receiver for Free-Space Optical …
We show the implementation of an optical coherent receiver suitable for inter-satellite communications supporting both Dual-Polarization Binary Phase Shift Keying (DP-BPSK) and Quadrature Phase Shift Keying (DP-QPSK) modulation formats, enabling data transmission at rates of up to 10 Gbps.
In this thesis, an approach to a low-complexity TAP system that utilizes a single quad-cell photodetector as an optical spatial sensor is presented in the context of a system which exploits the body pointing capabilities of the spacecraft to perform tracking maneuvers, eschewing the need for additional dedicated optical hardware.
Modular coherent photonic-aided payload receiver for ... - Nature
Apr 30, 2019 · Optical matrix multipliers resorting to coherent optical signal processing have been proposed as a promising alternative approach to microelectronic and opto-electronic artificial neural...
Receiver design for optical inter-satellite links based on digital ...
We present a comparison of homodyne and intradyne detection schemes for high-order modulation formats in optical inter-satellite communication systems. The homodyne detection based on optical PLL techniques is numerically investigated for BPSK and QPSK transmission.
Overlight Optical Receiver with 2 SAT+Terr. Outputs FM/DAB
Optical satellite and terrestrial receiver designed for 2-satellite and DTT installations. From its fiber input, it can capture combined optical TV signals (1200...1600nm) and subsequently, process and restore the original terrestrial and satellite TV sig
Low-power-consumption coherent receiver architecture for satellite ...
The increase in data rate of optical satellite to ground links towards 100 Gbps will require implementing optical coherent transceivers with capability to compensate for Doppler shift and atmospheric channel impairments.