Abstract: A method for estimating parameters of a single signal or mixed-frequency signals in a given frequency band comprises: receiving the signal(s); calculating a spectral correlation function having variables f and ? (cyclic frequency) for different values of L taken from a set of q strictly positive values, where, for each q, ? can independently take on one or more discrete values and/or cover one or more value ranges; from each calculation, extracting a set of local maxima detected on the basis of the variables f and ? or on the basis of variable f for each discrete value of ?, each of said peaks being characterized by a triplet [LApi, LFpi, L?pi], LFpi and L?pi being the frequency and cyclic frequency of said triplet, respectively, and LApi being the amplitude; and identifying groups of triplets as being the signature left by a set of parameters making up the signal(s).

Abstract: The invention relates to a connection device comprising: a socket body qualified according to a first standard, the socket body being hollow and intended to be attached to a panel of an onboard item of equipment; an external connector securely housed in the socket body, the external connector being defined according to a second, different and less robust standard; an internal connector linked to the external connector; a flexible, impedance-matched transition housed at least partially in the socket body and positioned between the external connector and the internal connector, which is configured, when in operation, to match the impedance of the lines passing between the internal connector and the external connector.

Abstract: The invention relates to a receiving station (1x) of a system for processing signals originating from an emitter, comprising: a first receiver (3) configured to acquire signals from the emitter; and a second receiver (4) configured to acquire signals from a satellite navigation system. The station is characterised in that the first receiver (3) and the second receiver (4) are synchronised by the same local clock (6) generating a local time base, the acquired signals being dated by said time base.

Abstract: The invention concerns an acquisition aid antenna device (3), intended to be secured to a main antenna device, the acquisition aid antenna device (3) comprising: —a multiband acquisition aid antenna feed (7), suitable for receiving radiation emitted by a target, and—a lens (9) arranged in the main reception lobe of the acquisition aid antenna feed (7) for concentrating the radiation received from the target towards the acquisition aid antenna feed (7). This device makes it possible to detect targets that are outside the useful beam of the main antenna device, and to use an acquisition aid antenna feed identical to the feed of the main antenna device.

Abstract: The invention relates to a radio communication receiver receiving a radio signal (S) including a main polarisation (MAIN-POL) and a secondary polarisation (X-POL) orthogonal to the main polarisation (MAIN-POL), the receiver including: a unit (1) for receiving the main polarisation (MAIN-POL) and the secondary polarisation of the received signal, synchronised as a carrier frequency with the main polarisation (MAIN-POL); a unit (2) for cancelling out the secondary polarisation synchronised with the main polarisation (MAIN-POL) and configured to suppress, from the received signal (S), the interference due to the secondary polarisation (X-POL), the unit (2) for cancelling out the secondary polarisation including a filtering unit (21) that receives the main polarisation (MAIN-POL) and the secondary polarisation (X-POL) as input; a unit (3) for demodulating the filtered signal, located downstream of the cancellation unit and configured to calculate carrier frequency error information and to communicate same by feed

Abstract: The invention relates to a method for estimating parameters of a single signal or mixed-frequency signals in a given band. The method includes the following steps: receiving (E0) a single signal or mixture of signals y(t) in a given frequency band, determining (E3) for L, a strictly positive real number taken in a set of q, q being strictly positive, predetermined value {L1, . . . ; Lq]} of the spectral correlation function (I), where (II) is the cyclic autocorrelation function for raising the sampled version y(n) of the signal y(t) to the power of L, where Ft[.] is the Fourier transform, and where, for each q, ? can separately take one or more discrete values and/or cover one or more value ranges, —processing (E4) each transform LSCFy(f, ?), L being taken in a set of q, q being strictly positive, predetermined values [Li; . . .

Abstract: The invention relates to a radio communication receiver receiving a radio signal (S) including a main polarisation (MAIN-POL) and a secondary polarisation (X-POL) orthogonal to the main polarisation (MAIN-POL), the receiver including: a unit (1) for receiving the main polarisation (MAIN-POL) and the secondary polarisation of the received signal, synchronised as a carrier frequency with the main polarisation (MAIN-POL); a unit (2) for cancelling out the secondary polarisation synchronised with the main polarisation (MAIN-POL) and configured to suppress, from the received signal (S), the interference due to the secondary polarisation (X-POL), the unit (2) for cancelling out the secondary polarisation including a filtering unit (21) that receives the main polarisation (MAIN-POL) and the secondary polarisation (X-POL) as input; a unit (3) for demodulating the filtered signal, located downstream of the cancellation unit and configured to calculate carrier frequency error information and to communicate same by feed

Abstract: The invention concerns an acquisition aid antenna device (3), intended to be secured to a main antenna device, the acquisition aid antenna device (3) comprising: —a multiband acquisition aid antenna feed (7), suitable for receiving radiation emitted by a target, and—a lens (9) arranged in the main reception lobe of the acquisition aid antenna feed (7) for concentrating the radiation received from the target towards the acquisition aid antenna feed (7). This device makes it possible to detect targets that are outside the useful beam of the main antenna device, and to use an acquisition aid antenna feed identical to the feed of the main antenna device.

Abstract: The invention relates to a receiving station (1x) of a system for processing signals originating from an emitter, comprising: a first receiver (3) configured to acquire signals from the emitter; and a second receiver (4) configured to acquire signals from a satellite navigation system. The station is characterised in that the first receiver (3) and the second receiver (4) are synchronised by the same local clock (6) generating a local time base, the acquired signals being dated by said time base.

Abstract: The invention relates to a source for a reflector antenna, comprising: a pseudo-cavity, a first sigma excitation device for exciting the pseudo-cavity in such a way as to generate a sum channel signal via a coaxial waveguide, a second excitation device for exciting the pseudo-cavity in such a way as to generate a difference channel signal, the second device comprising eight probes angularly distributed around a principal emission axis of the source, and a difference supply circuit for supplying the eight excitation probes according to the two modes TE21.

Abstract: The invention relates to a source for a reflector antenna, comprising: a pseudo-cavity, a first sigma excitation device for exciting the pseudo-cavity in such a way as to generate a sum channel signal via a coaxial waveguide, a second excitation device for exciting the pseudo-cavity in such a way as to generate a difference channel signal, the second device comprising eight probes angularly distributed around a principal emission axis of the source, and a difference supply circuit for supplying the eight excitation probes according to the two modes TE21.

Abstract: The invention relates to a source (S) for a parabolic antenna, comprising: •—a sigma radiating assembly (1S, 1C, 1L) suitable for generating the sigma channel including a sigma radiating element (11) positioned on a main transmission/reception axis (A) of the source (S), and a sigma supply circuit (12) to supply the sigma radiating element (11), and •—a delta radiating assembly (2S, 2C, 2L) suitable for generating the delta channel including eight delta radiating elements (21S, 21C, 21L), arranged around the main transmission/reception axis (S) of the source (S), and a delta supply circuit (22S, 22C, 22L).