DEVICE AND METHOD FOR TRANSMISSION CHANNEL DISTORTION EQUALISATION IN COMMUNICATION SYSTEMS INVOLVING TIME DOMAIN MULTIPLEXING USING SETS OF COMPLEMENTARY SEQUENCES

摘要

The invention relates to a device and method for transmission channel distortion equalisation in communication systems involving time domain multiplexing using sets of complementary sequences. The inventive method consists in transmitting a medium-identifying preamble pulse s[n] which is encoded by convoluting said signal with a set of complementary sequences (2). According to the invention, upon being received simultaneously at the receiver (11), the aforementioned sequences can be used to extract the time characteristics from the medium (13 and 14) that affect the data transmitted. Using the data thus obtained, post-equalisation (15) and pre-equalisation (16) are performed a given number of times (17) until ideally a Krönecker delta (18) is obtained. The precision of the distortion equalisation depends on the length of the sequences used for coding and on the number of times that said technique is applied to the signal received.