MULTI-ROOM RECEPTION SYSTEM INCORPORATING SUPERHETERODYNE-TYPE RECEIVER ASSOCIATED WITH INSTANT-BAND SPECTRAL ANALYZERS

摘要

The invention relates to a reception system (SYS) comprising a superheterodyne type receiver (REC) coupled to a processing means (MTR), the receiver comprising a number N of antennas (V1, ..., VN). Said receiver comprises: N translation means (MEL11, ... MEL1N), each being able to translate in frequency signals delivered by the antenna in question, from a frequency sub-band of the range of interest to a band of restricted frequency, and frequency-multiplexing the signals belonging to said frequency sub-band; N first intermediary frequency bandpass filters (FPN11, ..., FP1N), of bandwidth equal to said restricted frequency band, respectively coupled at the output of each translation means, and able to filter the translated and multiplexed signals ; coupling means (CPL) capable of summing the N filtered signals so as to deliver all the summed signals via N outputs. The processing means comprises N other translation means (MEL21, ..., MEL2N) coupled to N other intermediate frequency bandpass filters (FPB21 FPB2N) and frequency bandwidth equal to L, themselves coupled to N spectral analyzers (AS1, ..., ASN), all having the same restricted analysis frequency band of width L, each other translation means of rank i, i being an integer varying from 1 to N, being suitable for transposing the signals delivered by the coupling means by means of a translation signal having a frequency adapted to each other translation means, so that the other intermediate frequency bandpass filter connected at the output of said other means of translation translation, or capable of filtering the ith sub-band of the total frequency band width LN, to which belong the signals summed by the coupling means.