| 摘要 |
<p>In the transmission of a transmitted and/or received signal an input terminal (2) is provided for receiving the wide-band digital signal of a specific sampling frequency Fs. In a transmitter circuit (1) this signal is converted into a second digital signal, which signal comprises successive frames, each frame being made up of information packets IP each having a length of N bits, wherein N > 1. The said signal is converted in a second transmitter circuit into a third digital signal in such a manner that it can be transmitted via the transmission medium (4). The first transmitter circuit (1) contains a frame generator either for generating the frames having a number of information packets in each frame P, if P is an integer, or, if P is not an integer, than for cyclic generating of a first and second number of frames, whilst the first number of frames has the number of information packets equal to P', P' being the next lower integer following P, and the second number of frames has the number of information packets equal to P'+ 1, in such a way that the average frame rate of the second digital signal is substantially equal to Fs/ns, where, P = BR/N x ns/Fs, wherein BR denotes a bitrate of the second digital signal and ns denotes a number of samples in the wide-band digital signal.</p> |
