Performances of Regenerative and Non- Regenerative Satellite Repeaters with Mpsk Signalling
نویسنده
چکیده
Linear (translation), hard-limited, and demod/remod types of satellite repeaters are considered in this paper. Both uncoded and coded multiple phase shift keyed (MPSK) signals are assumed to be transmitted through these repeaters. Relative performances of these repeaters in the presence of uplink and downlink noises are then compared quantitively. Probabilities of bit errors and the computational cutoff rates are computed for 2, 4, and 8 phases PSK signals, with uplink and downlink SNR’s as parameters.
منابع مشابه
CRC Report #CRC-RP-96-002 ANALYSIS OF INTERFERENCE EFFECTS IN SATELLITE ON-BOARD REGENERATIVE REPEATERS
This report provides an introduction to the problem of analyzing the performance of satellite on-board regenerative repeaters. Two speci c group demodulator architectures are discussed: one based on a polyphase network followed by an FFT processor, and the other based on a chirp Fourier transform implemented using surface acoustic wave (SAW) devices. Due to imperfect ltering and channel separat...
متن کاملDesign of an anti-lock regenerative braking system for a series hybrid electric vehicle
In this paper, an adaptive rule based controller for an anti-lock regenerative braking system (ARBS) of a series hybrid electric bus (SHEB) has been proposed. The proposed controller integrates the regenerative braking and wheel anti-lock functions by controlling the electric motor of the hybrid vehicle, without using any conventional mechanical anti-lock braking system. The performance of the ...
متن کاملCould Gaussian regenerative stations act as quantum repeaters?
Higher transmission loss diminishes the performance of optical communication—be it the rate at which classical or quantum data can be sent reliably, or the secure key generation rate of quantum key distribution (QKD). Loss compounds with distance—exponentially in an optical fiber, and inverse-square with distance for a free-space channel. In order to boost classical communication rates over lon...
متن کاملRegenerative Medicine: Highlight on the Significance of Therapeutics with Novel Strategies
Background: There is a worldwide effort to present novel approaches for the development of tolerance-induction treatments in regenerative medicine, after years of investigation in clinical transplantation. Particularly, novel approaches are based on controlling the immune response, including the application of biomaterials or imitation of antigen-specific peripheral tolerance in either solid-or...
متن کاملRegenerative Medicine: Highlight on the Significance of Therapeutics with Novel Strategies
Background: There is a worldwide effort to present novel approaches for the development of tolerance-induction treatments in regenerative medicine, after years of investigation in clinical transplantation. Particularly, novel approaches are based on controlling the immune response, including the application of biomaterials or imitation of antigen-specific peripheral tolerance in either solid-or...
متن کامل