Method and a device for broadband transmission

Abstract

In a method and a system for transmission of information, broad band frequency sweeps are used. A certain sweep then denotes a certain symbol. The frequencies between which the sweeps occur are varied according to a pseudo-random scheme. Furthermore, a receiver for efficient detection of such broad band sweeps comprises reference oscillators in different receiving channels. The system has very good performance in terms of data rate, time delay, use of a large channel bandwidth, low probability of detection and low risk of tapping and good noise immunity.

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