TRANSMISSION SYSTEM FOR TRANSMITTING SIGNALS IN BURST MODE

摘要

The transmission system is for transmitting signals in burst mode. Transmitters in substations of the system transmit signals in bursts and, in dedicated timeslots, to a main station. The latter station converts the received signals to digital signals by means of a processing circuitry included in its receiver. This processing circuitry performs the steps of an iterative process and, in each step, derives from a received signal Iin a threshold value related to a characteristic of the signal. The power of the transmitted signals is controlled by a circuit that compares the peak power values of a maintenance signal coupled back via a backfacet diode D with reference values REF1 and REF2 and controls a laser circuit L based on the result of the comparison stored in a memory MEM2.