Discuss Performance of Corner-Cube Prism for Modulating Retro-Reflector Terminal in Free-Space Laser Communication
Modulating Retro-reflector terminal does not need capture, tracking, targeting(ATP) sub-system .The key unit of this type structure is corner- cube prism,its performance will cause the light beam intensity distribution and light beam divergence angle .There are several factors ,such as effective area , right-angle accuracy, surface-type errors .Those errors caused loss of light power result in communication fail,so in this paper we made a precise analysis as a supplement.
Capacity Analysis of Mobile Resonant Beam Communications
Resonant beam communication (RBCom) is a promising technology to satisfy the need for high data rate mobile communication. In this paper, we present the system model of kilometer-level RBCom by analyzing the resonant beam in one complete reflection round. Then, we derive the channel capacity for the scenario that the receiver moves in a fixed direction at a constant velocity. Numerical and simulation results reveal that the channel capacity decreases dramatically after a certain duration due to the cumulative doppler shift.
RIP - General Purpose Interactive Display at HHIRF
RIP is a general purpose interactive code for display and analysis of data acquired with the Holifield Heavy Ion Research Facility (HHIRF) accelerators at Oak Ridge National Laboratory. The HHIRF data acquisition system includes a version of RIP for on-line display of one-and two-dimensional histograms on color graphic terminals and hard copy on color printer/plotters. General features of the program and interactive techniques will be described.